Das, Hirakjyoti; Du, Julia Q. D.; Tang, Dazhao Congruences modulo powers of 2 for restricted partition triples due to Lin and Wang. (English) Zbl 07823300 Ramanujan J. 63, No. 4, 1073-1088 (2024). MSC: 11P83 05A17 05A15 PDFBibTeX XMLCite \textit{H. Das} et al., Ramanujan J. 63, No. 4, 1073--1088 (2024; Zbl 07823300) Full Text: DOI
Guo, Shuangjian; Das, Apurba Cohomology and deformations of generalized Reynolds operators on Leibniz algebras. (English) Zbl 07823195 Rocky Mt. J. Math. 54, No. 1, 161-178 (2024). MSC: 17A32 17B38 PDFBibTeX XMLCite \textit{S. Guo} and \textit{A. Das}, Rocky Mt. J. Math. 54, No. 1, 161--178 (2024; Zbl 07823195) Full Text: DOI Link
Das, Debabrata; Dhar, Subham; Kairi, Rishi Raj; Mondal, Kajal Kumar; Poddar, Nanda Analysis of environmental transport of suspended sediment particles in a tidal wetland flow under the effect of floating vegetation absorption. (English) Zbl 07822365 Commun. Nonlinear Sci. Numer. Simul. 132, Article ID 107888, 23 p. (2024). MSC: 76Mxx 76Txx 76Fxx PDFBibTeX XMLCite \textit{D. Das} et al., Commun. Nonlinear Sci. Numer. Simul. 132, Article ID 107888, 23 p. (2024; Zbl 07822365) Full Text: DOI
Dasgupta, Agnimitra; Patel, Dhruv V.; Ray, Deep; Johnson, Erik A.; Oberai, Assad A. A dimension-reduced variational approach for solving physics-based inverse problems using generative adversarial network priors and normalizing flows. (English) Zbl 07820234 Comput. Methods Appl. Mech. Eng. 420, Article ID 116682, 27 p. (2024). MSC: 62-XX 76-XX PDFBibTeX XMLCite \textit{A. Dasgupta} et al., Comput. Methods Appl. Mech. Eng. 420, Article ID 116682, 27 p. (2024; Zbl 07820234) Full Text: DOI arXiv
Das, Suddhasattwa The categorical basis of dynamical entropy. (English) Zbl 07818676 Appl. Categ. Struct. 32, No. 2, Paper No. 8, 25 p. (2024). Reviewer: Hirokazu Nishimura (Tsukuba) MSC: 18A25 18B35 18A30 37B40 PDFBibTeX XMLCite \textit{S. Das}, Appl. Categ. Struct. 32, No. 2, Paper No. 8, 25 p. (2024; Zbl 07818676) Full Text: DOI arXiv
Das, Suprajo; Roy, Sudeshna Finitely generated saturated multi-Rees algebras. (English) Zbl 07818605 J. Algebra 646, 456-477 (2024). MSC: 13A30 13H15 13D45 16W50 13E05 05E40 PDFBibTeX XMLCite \textit{S. Das} and \textit{S. Roy}, J. Algebra 646, 456--477 (2024; Zbl 07818605) Full Text: DOI arXiv
Bhadury, Samapan; Das, Arpan; Florkowski, Wojciech; Gowthama, K. K.; Ryblewski, Radoslaw Polarization of spin-\(\frac{1}{2}\) particles with effective spacetime dependent masses. (English) Zbl 07816690 Phys. Lett., B 849, Article ID 138464, 5 p. (2024). MSC: 81-XX 83-XX PDFBibTeX XMLCite \textit{S. Bhadury} et al., Phys. Lett., B 849, Article ID 138464, 5 p. (2024; Zbl 07816690) Full Text: DOI arXiv
Das, Stuti Gradient Hölder regularity in mixed local and nonlocal linear parabolic problem. (English) Zbl 07815860 J. Math. Anal. Appl. 535, No. 2, Article ID 128140, 39 p. (2024). MSC: 35B65 35K10 35R11 PDFBibTeX XMLCite \textit{S. Das}, J. Math. Anal. Appl. 535, No. 2, Article ID 128140, 39 p. (2024; Zbl 07815860) Full Text: DOI arXiv
Das, Suman; Kaliraj, Anbareeswaran Sairam Growth of harmonic mappings and Baernstein type inequalities. (English) Zbl 07815300 Potential Anal. 60, No. 3, 1121-1137 (2024). MSC: 31A05 30C45 30H10 PDFBibTeX XMLCite \textit{S. Das} and \textit{A. S. Kaliraj}, Potential Anal. 60, No. 3, 1121--1137 (2024; Zbl 07815300) Full Text: DOI
Dutta, A.; Das, A. K. Bounded homotopy path approach to the solution of linear complementarity problems. (English) Zbl 07814738 Opsearch 61, No. 1, 352-372 (2024). MSC: 90Bxx 90C33 15A39 15B99 PDFBibTeX XMLCite \textit{A. Dutta} and \textit{A. K. Das}, Opsearch 61, No. 1, 352--372 (2024; Zbl 07814738) Full Text: DOI
Das, Sudipa; Choudhury, Mukunda; Mahata, Gour Chandra Optimal inventory policies for time varying deteriorating items with dynamic demand under upstream and downstream trade credit by discounted cash-flow analysis. (English) Zbl 07814722 Opsearch 61, No. 1, 1-32 (2024). MSC: 90Bxx PDFBibTeX XMLCite \textit{S. Das} et al., Opsearch 61, No. 1, 1--32 (2024; Zbl 07814722) Full Text: DOI
Biswas, Brototi; Das, Ketan; Saikia, Debashis; Chouhan, Pradip COVID-19 hotspot mapping and prediction in Aizawl district of Mizoram: a hotspot and SEIR model-based analysis. (English) Zbl 07812661 Sankhyā, Ser. A 86, No. 1, 1-26 (2024). MSC: 62-XX PDFBibTeX XMLCite \textit{B. Biswas} et al., Sankhyā, Ser. A 86, No. 1, 1--26 (2024; Zbl 07812661) Full Text: DOI
Chattopadhyay, Arup; Das, Soma Commutants and complex symmetry of finite Blaschke product multiplication operator in \(L^2 (\mathbb{T})\). (English) Zbl 07811765 Proc. Edinb. Math. Soc., II. Ser. 67, No. 1, 261-286 (2024). MSC: 47A05 47A15 47B35 30H10 PDFBibTeX XMLCite \textit{A. Chattopadhyay} and \textit{S. Das}, Proc. Edinb. Math. Soc., II. Ser. 67, No. 1, 261--286 (2024; Zbl 07811765) Full Text: DOI arXiv
Baluni, Sapna; Yadav, Vijay K.; Das, Subir Lagrange stability criteria for hypercomplex neural networks with time varying delays. (English) Zbl 07809999 Commun. Nonlinear Sci. Numer. Simul. 131, Article ID 107765, 17 p. (2024). MSC: 34K25 34K12 92B20 46S10 PDFBibTeX XMLCite \textit{S. Baluni} et al., Commun. Nonlinear Sci. Numer. Simul. 131, Article ID 107765, 17 p. (2024; Zbl 07809999) Full Text: DOI
Chtioui, Taoufik; Das, Apurba; Mabrouk, Sami (Co)homology of compatible associative algebras. (English) Zbl 07808410 Commun. Algebra 52, No. 2, 582-603 (2024). MSC: 16E40 16S80 PDFBibTeX XMLCite \textit{T. Chtioui} et al., Commun. Algebra 52, No. 2, 582--603 (2024; Zbl 07808410) Full Text: DOI arXiv
Salman, Mohammad; Das, Ruchi Dynamics of multi-sensitive non-autonomous systems with respect to a vector. (English) Zbl 07807910 Bull. Malays. Math. Sci. Soc. (2) 47, No. 2, Paper No. 51, 16 p. (2024). MSC: 37B20 37B55 54B10 54H20 PDFBibTeX XMLCite \textit{M. Salman} and \textit{R. Das}, Bull. Malays. Math. Sci. Soc. (2) 47, No. 2, Paper No. 51, 16 p. (2024; Zbl 07807910) Full Text: DOI arXiv
Das Gupta, Shuvomoy; Van Parys, Bart P. G.; Ryu, Ernest K. Publisher correction to: “Branch-and-bound performance estimation programming: a unified methodology for constructing optimal optimization methods”. (English) Zbl 07807819 Math. Program. 204, No. 1-2 (A), 641 (2024). MSC: 68Q25 90C25 90C30 90C57 PDFBibTeX XMLCite \textit{S. Das Gupta} et al., Math. Program. 204, No. 1--2 (A), 641 (2024; Zbl 07807819) Full Text: DOI
Das Gupta, Shuvomoy; Van Parys, Bart P. G.; Ryu, Ernest K. Branch-and-bound performance estimation programming: a unified methodology for constructing optimal optimization methods. (English) Zbl 07807818 Math. Program. 204, No. 1-2 (A), 567-639 (2024); correction ibid. 204, No. 1-2 (A), 641 (2024). MSC: 68Q25 90C25 90C30 90C57 PDFBibTeX XMLCite \textit{S. Das Gupta} et al., Math. Program. 204, No. 1--2 (A), 567--639 (2024; Zbl 07807818) Full Text: DOI arXiv
Das, B. Krishna; Sau, Haripada Pure inner functions, distinguished varieties and toral algebraic commutative contractive pairs. (English) Zbl 07805248 Proc. Am. Math. Soc. 152, No. 3, 1067-1081 (2024). MSC: 47A13 32C25 47A20 47A48 PDFBibTeX XMLCite \textit{B. K. Das} and \textit{H. Sau}, Proc. Am. Math. Soc. 152, No. 3, 1067--1081 (2024; Zbl 07805248) Full Text: DOI
Das, Apurba; Sen, Sourav 2-term averaging \(L_{\infty}\)-algebras and non-abelian extensions of averaging Lie algebras. (English) Zbl 07804795 J. Algebra 644, 126-151 (2024). MSC: 17B40 17B55 17B56 18G45 PDFBibTeX XMLCite \textit{A. Das} and \textit{S. Sen}, J. Algebra 644, 126--151 (2024; Zbl 07804795) Full Text: DOI arXiv
Das, Nilanjan A logarithmic lower bound for the second Bohr radius. (English) Zbl 07802119 Can. Math. Bull. 67, No. 1, 90-93 (2024). MSC: 32A05 32A10 PDFBibTeX XMLCite \textit{N. Das}, Can. Math. Bull. 67, No. 1, 90--93 (2024; Zbl 07802119) Full Text: DOI
Das, Mithun Kumar; Pujahari, Sudhir Mean of the product of derivatives of Hardy’s \(Z\)-function with Dirichlet polynomial. (English) Zbl 07802064 J. Number Theory 258, 334-367 (2024). MSC: 11M06 11M26 11M41 PDFBibTeX XMLCite \textit{M. K. Das} and \textit{S. Pujahari}, J. Number Theory 258, 334--367 (2024; Zbl 07802064) Full Text: DOI
Banerjee, Abhishek; Das, Subhajit Heavily separable functors of the second kind and applications. (English) Zbl 07799748 J. Algebra 643, 49-75 (2024). MSC: 16D90 18A40 18C20 PDFBibTeX XMLCite \textit{A. Banerjee} and \textit{S. Das}, J. Algebra 643, 49--75 (2024; Zbl 07799748) Full Text: DOI arXiv
Gupta, Shilpa; Dwivedi, Gaurav Ground state solution to N-Kirchhoff equation with critical exponential growth and without Ambrosetti-Rabinowitz condition. (English) Zbl 07797008 Rend. Circ. Mat. Palermo (2) 73, No. 1, 45-56 (2024). MSC: 35J62 35J25 35A01 35A15 PDFBibTeX XMLCite \textit{S. Gupta} and \textit{G. Dwivedi}, Rend. Circ. Mat. Palermo (2) 73, No. 1, 45--56 (2024; Zbl 07797008) Full Text: DOI
Das, Aritra; Das, Soumya; Das, Pritha Hopf bifurcation analysis and existence of heteroclinic orbit and homoclinic orbit in an extended Lorenz system. (English) Zbl 07796605 Differ. Equ. Dyn. Syst. 32, No. 1, 33-49 (2024). Reviewer: Paulo Santana (São José do Rio Preto) MSC: 37G20 37G15 37G10 37C29 34C23 34C37 PDFBibTeX XMLCite \textit{A. Das} et al., Differ. Equ. Dyn. Syst. 32, No. 1, 33--49 (2024; Zbl 07796605) Full Text: DOI
Das, Kanoy Kumar Equality of ordinary and symbolic powers of some classes of monomial ideals. (English) Zbl 07796528 Graphs Comb. 40, No. 1, Paper No. 12, 17 p. (2024). MSC: 05E40 05C25 05C22 13F55 PDFBibTeX XMLCite \textit{K. K. Das}, Graphs Comb. 40, No. 1, Paper No. 12, 17 p. (2024; Zbl 07796528) Full Text: DOI
Das, Tushar; Fishman, Lior; Simmons, David; Urbański, Mariusz A variational principle in the parametric geometry of numbers. (English) Zbl 07794565 Adv. Math. 437, Article ID 109435, 130 p. (2024). MSC: 11K55 11J13 28A80 28A78 37A15 37A17 37C85 37D40 91A05 91A44 PDFBibTeX XMLCite \textit{T. Das} et al., Adv. Math. 437, Article ID 109435, 130 p. (2024; Zbl 07794565) Full Text: DOI arXiv
Das, Ashok Kumar; Sahu, Rajkamal A characterization of unit interval bigraphs of open and closed intervals. (English) Zbl 07794332 Discrete Appl. Math. 342, 231-243 (2024). MSC: 05C76 05C62 05C75 PDFBibTeX XMLCite \textit{A. K. Das} and \textit{R. Sahu}, Discrete Appl. Math. 342, 231--243 (2024; Zbl 07794332) Full Text: DOI
Jamal, Md Arzoo; Das, Subir; Mukhopadhyay, Santwana Fixed-time synchronization of delayed inertial Cohen-Grossberg neural networks with desynchronizing impulses. (English) Zbl 07793578 Commun. Nonlinear Sci. Numer. Simul. 130, Article ID 107772, 13 p. (2024). MSC: 93D40 93B70 93C27 93C43 PDFBibTeX XMLCite \textit{M. A. Jamal} et al., Commun. Nonlinear Sci. Numer. Simul. 130, Article ID 107772, 13 p. (2024; Zbl 07793578) Full Text: DOI
Das, Pratulananda; Adhikary, Nayan; Pal, Sudip Kumar On certain new types of completeness properties using infinite chainability and associated metrization problems in uniform spaces. (English) Zbl 07792358 Topology Appl. 341, Article ID 108462, 15 p. (2024). Reviewer: Isabel Garrido (Madrid) MSC: 54D20 54C30 54A25 PDFBibTeX XMLCite \textit{P. Das} et al., Topology Appl. 341, Article ID 108462, 15 p. (2024; Zbl 07792358) Full Text: DOI
Das, Debraj Central limit theorem and near classical Berry-Esseen rate for self normalized sums in high dimensions. (English) Zbl 07788884 Bernoulli 30, No. 1, 278-303 (2024). MSC: 60F05 PDFBibTeX XMLCite \textit{D. Das}, Bernoulli 30, No. 1, 278--303 (2024; Zbl 07788884) Full Text: DOI arXiv
Das, Shagnik; Draganić, Nemanja; Steiner, Raphael Tight bounds for divisible subdivisions. (English) Zbl 07787801 J. Comb. Theory, Ser. B 165, 1-19 (2024). MSC: 05C83 05C60 05C35 05C38 PDFBibTeX XMLCite \textit{S. Das} et al., J. Comb. Theory, Ser. B 165, 1--19 (2024; Zbl 07787801) Full Text: DOI arXiv
Akhtar, Sheikh Shakil; Das, Sandip; Gahlawat, Harmender Cops and robber on butterflies, grids, and AT-free graphs. (English) Zbl 07785871 Discrete Appl. Math. 345, 231-245 (2024). MSC: 91A24 91A05 91A43 05C57 PDFBibTeX XMLCite \textit{S. S. Akhtar} et al., Discrete Appl. Math. 345, 231--245 (2024; Zbl 07785871) Full Text: DOI
Zhang, Yuan; Wang, Haiying; Su, Guifu; Das, Kinkar Chandra Extremal problems on the atom-bond sum-connectivity indices of trees with given matching number or domination number. (English) Zbl 07785867 Discrete Appl. Math. 345, 190-206 (2024). MSC: 05C09 05C40 05C35 05C69 05C05 05C92 92E10 PDFBibTeX XMLCite \textit{Y. Zhang} et al., Discrete Appl. Math. 345, 190--206 (2024; Zbl 07785867) Full Text: DOI
Das, Omprokash; Ou, Wenhao On the log abundance for compact Kähler threefolds. (English) Zbl 07785294 Manuscr. Math. 173, No. 1-2, 341-404 (2024). MSC: 14E30 32J17 32J27 PDFBibTeX XMLCite \textit{O. Das} and \textit{W. Ou}, Manuscr. Math. 173, No. 1--2, 341--404 (2024; Zbl 07785294) Full Text: DOI arXiv
Das, Anish; Chowdhury, Anirban Roy; Gangopadhyay, Sunandan Stability, quasinormal modes in a charged black hole in perfect fluid dark matter. (English) Zbl 07783477 Classical Quantum Gravity 41, No. 1, Article ID 015018, 37 p. (2024). MSC: 83C57 PDFBibTeX XMLCite \textit{A. Das} et al., Classical Quantum Gravity 41, No. 1, Article ID 015018, 37 p. (2024; Zbl 07783477) Full Text: DOI arXiv
Nageshwar, Rohit; Khan, Abdul Gaffar; Das, Tarun Bi-asymptotic \(c\)-expansivity. (English) Zbl 07782575 J. Math. Anal. Appl. 532, No. 1, Article ID 127955, 12 p. (2024). MSC: 37B65 37B02 37B05 PDFBibTeX XMLCite \textit{R. Nageshwar} et al., J. Math. Anal. Appl. 532, No. 1, Article ID 127955, 12 p. (2024; Zbl 07782575) Full Text: DOI arXiv
Dasgupta, Amites Azuma-Hoeffding bounds for a class of urn models. (English) Zbl 1528.60026 Stat. Probab. Lett. 204, Article ID 109940, 7 p. (2024). MSC: 60F10 60G42 60C05 60E15 PDFBibTeX XMLCite \textit{A. Dasgupta}, Stat. Probab. Lett. 204, Article ID 109940, 7 p. (2024; Zbl 1528.60026) Full Text: DOI arXiv
Saha, Avik; Das, Arup Kumar Multiscale simulation of nanodrop over surfaces with varying hydrophilicity. (English) Zbl 1526.76054 Comput. Phys. Commun. 294, Article ID 108963, 12 p. (2024). MSC: 76T10 76N06 76M99 76M12 PDFBibTeX XMLCite \textit{A. Saha} and \textit{A. K. Das}, Comput. Phys. Commun. 294, Article ID 108963, 12 p. (2024; Zbl 1526.76054) Full Text: DOI
Bera, Tanmoy; Das, Mithun Kumar; Mukhopadhyay, Anirban On higher dimensional Poissonian pair correlation. (English) Zbl 07759035 J. Math. Anal. Appl. 530, No. 1, Article ID 127686, 17 p. (2024). Reviewer: Takao Komatsu (Hangzhou) MSC: 11K06 11K36 11N37 PDFBibTeX XMLCite \textit{T. Bera} et al., J. Math. Anal. Appl. 530, No. 1, Article ID 127686, 17 p. (2024; Zbl 07759035) Full Text: DOI arXiv
Baishya, Anusuiya; Das, Apurba Nijenhuis deformations of Poisson algebras and \(F\)-manifold algebras. arXiv:2403.18496 Preprint, arXiv:2403.18496 [math.RA] (2024). MSC: 17B63 17B40 16S80 BibTeX Cite \textit{A. Baishya} and \textit{A. Das}, ``Nijenhuis deformations of Poisson algebras and $F$-manifold algebras'', Preprint, arXiv:2403.18496 [math.RA] (2024) Full Text: arXiv OA License
Anamby, Pramath; Das, Soumya New and old Saito-Kurokawa lifts classically via \(L^2\) norms and bounds on their supnorms: level aspect. arXiv:2403.17401 Preprint, arXiv:2403.17401 [math.NT] (2024). MSC: 11F46 11F50 11F37 BibTeX Cite \textit{P. Anamby} and \textit{S. Das}, ``New and old Saito-Kurokawa lifts classically via $L^2$ norms and bounds on their supnorms: level aspect'', Preprint, arXiv:2403.17401 [math.NT] (2024) Full Text: arXiv OA License
Balázs, Márton; Bhattacharjee, Sudeshna; Das, Karambir; Harper, David Road layout in the KPZ class. arXiv:2403.16268 Preprint, arXiv:2403.16268 [math.PR] (2024). MSC: 60K35 60K37 82D30 BibTeX Cite \textit{M. Balázs} et al., ``Road layout in the KPZ class'', Preprint, arXiv:2403.16268 [math.PR] (2024) Full Text: arXiv OA License
Malik, Prasanta; Das, Saikat A generalized notion of convergence of sequences of subspaces in an inner product space via ideals. arXiv:2403.14357 Preprint, arXiv:2403.14357 [math.FA] (2024). MSC: 40A05 40A35 15A63 46B20 BibTeX Cite \textit{P. Malik} and \textit{S. Das}, ``A generalized notion of convergence of sequences of subspaces in an inner product space via ideals'', Preprint, arXiv:2403.14357 [math.FA] (2024) Full Text: arXiv OA License
Sohail; Pandey, Vivek; Singh, Uttam; Das, Siddhartha Fundamental limitations on the recoverability of quantum processes. arXiv:2403.12947 Preprint, arXiv:2403.12947 [quant-ph] (2024). BibTeX Cite \textit{Sohail} et al., ``Fundamental limitations on the recoverability of quantum processes'', Preprint, arXiv:2403.12947 [quant-ph] (2024) Full Text: arXiv OA License
Das, Arpan; Marzocca, Pier; Coppotelli, Giuliano; Levinski, Oleg; Taylor, Paul A Data-driven Approach for Rapid Detection of Aeroelastic Modes from Flutter Flight Test Based on Limited Sensor Measurements. arXiv:2403.11521 Preprint, arXiv:2403.11521 [eess.SP] (2024). BibTeX Cite \textit{A. Das} et al., ``A Data-driven Approach for Rapid Detection of Aeroelastic Modes from Flutter Flight Test Based on Limited Sensor Measurements'', Preprint, arXiv:2403.11521 [eess.SP] (2024) Full Text: arXiv OA License
Das, Apurba Higher structures for Lie \(H\)-pseudoalgebras. arXiv:2403.10777 Preprint, arXiv:2403.10777 [math.RT] (2024). MSC: 17B56 17B69 18N40 18N25 BibTeX Cite \textit{A. Das}, ``Higher structures for Lie $H$-pseudoalgebras'', Preprint, arXiv:2403.10777 [math.RT] (2024) Full Text: arXiv OA License
Das, Apurba Averaging operators on groups, racks and Leibniz algebras. arXiv:2403.06250 Preprint, arXiv:2403.06250 [math.RA] (2024). MSC: 17B40 22E60 16T05 17A32 BibTeX Cite \textit{A. Das}, ``Averaging operators on groups, racks and Leibniz algebras'', Preprint, arXiv:2403.06250 [math.RA] (2024) Full Text: arXiv OA License
Chandra, D.; Das, P.; Das, S. Certain observations on selection principles related to bornological covers using ideals. arXiv:2403.04276 Preprint, arXiv:2403.04276 [math.GN] (2024). MSC: 54D20 54C35 54A25 BibTeX Cite \textit{D. Chandra} et al., ``Certain observations on selection principles related to bornological covers using ideals'', Preprint, arXiv:2403.04276 [math.GN] (2024) Full Text: arXiv OA License
Das, Anushree; Das, Debattam Reversibility in the Seifert-fibered spaces. arXiv:2403.01541 Preprint, arXiv:2403.01541 [math.GT] (2024). MSC: 57Kxx 20H10 20H05 BibTeX Cite \textit{A. Das} and \textit{D. Das}, ``Reversibility in the Seifert-fibered spaces'', Preprint, arXiv:2403.01541 [math.GT] (2024) Full Text: arXiv OA License
Das, Hrishav; Nychka, Eliot; Bhattacharya, Raktim Quantifying Maximum Actuator Degradation for a Given \(H_2/H_{\infty}\) Performance with Full-State Feedback Control. arXiv:2403.01333 Preprint, arXiv:2403.01333 [eess.SY] (2024). BibTeX Cite \textit{H. Das} et al., ``Quantifying Maximum Actuator Degradation for a Given $H_2/H_{\infty}$ Performance with Full-State Feedback Control'', Preprint, arXiv:2403.01333 [eess.SY] (2024) Full Text: arXiv OA License
Das, Angsuman; Mirafzal, S. Morteza Automorphism group of a family of distance regular graphs which are not distance transitive. arXiv:2403.01293 Preprint, arXiv:2403.01293 [math.CO] (2024). MSC: 05C25 BibTeX Cite \textit{A. Das} and \textit{S. M. Mirafzal}, ``Automorphism group of a family of distance regular graphs which are not distance transitive'', Preprint, arXiv:2403.01293 [math.CO] (2024) Full Text: arXiv OA License
Das, Angsuman; Mandal, Arnab Solvability of a group based on its number of subgroups. arXiv:2403.01262 Preprint, arXiv:2403.01262 [math.GR] (2024). MSC: 05E30 BibTeX Cite \textit{A. Das} and \textit{A. Mandal}, ``Solvability of a group based on its number of subgroups'', Preprint, arXiv:2403.01262 [math.GR] (2024) Full Text: arXiv OA License
Antony, Dhanyamol; Das, Anita; Gosavi, Shirish; Jacob, Dalu; Kulamarva, Shashanka Graph Burning: Bounds and Hardness. arXiv:2402.18984 Preprint, arXiv:2402.18984 [math.CO] (2024). MSC: 05C12 68Q17 05C85 05C38 05C05 BibTeX Cite \textit{D. Antony} et al., ``Graph Burning: Bounds and Hardness'', Preprint, arXiv:2402.18984 [math.CO] (2024) Full Text: arXiv OA License
Das, Jhantu; Halder, Kalyan; Roy, Soumendu; Bhattacharyya, Arindam \(\ast\)-conformal Einstein solitons on N(k)-contact metric manifolds. arXiv:2402.17380 Preprint, arXiv:2402.17380 [math.DG] (2024). MSC: 53D15 53C44 35Q51 BibTeX Cite \textit{J. Das} et al., ``$\ast$-conformal Einstein solitons on N(k)-contact metric manifolds'', Preprint, arXiv:2402.17380 [math.DG] (2024) Full Text: arXiv OA License
Das, Sayan; Serio, Christian Convergence to stationary measures for the half-space log-gamma polymer. arXiv:2402.16834 Preprint, arXiv:2402.16834 [math.PR] (2024). MSC: 82D60 60K35 82B41 BibTeX Cite \textit{S. Das} and \textit{C. Serio}, ``Convergence to stationary measures for the half-space log-gamma polymer'', Preprint, arXiv:2402.16834 [math.PR] (2024) Full Text: arXiv OA License
Baishya, Anusuiya; Das, Apurba Representations and cohomology of a matched pair of Lie algebras, and \(L_\infty\)-algebras. arXiv:2402.16495 Preprint, arXiv:2402.16495 [math.RT] (2024). MSC: 17B10 17B56 17B62 17B70 18N40 BibTeX Cite \textit{A. Baishya} and \textit{A. Das}, ``Representations and cohomology of a matched pair of Lie algebras, and $L_\infty$-algebras'', Preprint, arXiv:2402.16495 [math.RT] (2024) Full Text: arXiv OA License
Jannat, Firdous Ee; Nath, Rajat Kanti; Das, Kinkar Chandra Common neighborhood energies and their relations with Zagreb index. arXiv:2402.15416 Preprint, arXiv:2402.15416 [math.CO] (2024). MSC: 05C50 BibTeX Cite \textit{F. E. Jannat} et al., ``Common neighborhood energies and their relations with Zagreb index'', Preprint, arXiv:2402.15416 [math.CO] (2024) Full Text: arXiv OA License
Balachandran, Niranjan; Das, Shagnik; Sankarnarayanan, Brahadeesh Bounded fractional intersecting families are linear in size. arXiv:2402.14981 Preprint, arXiv:2402.14981 [math.CO] (2024). MSC: 05D05 03E05 BibTeX Cite \textit{N. Balachandran} et al., ``Bounded fractional intersecting families are linear in size'', Preprint, arXiv:2402.14981 [math.CO] (2024) Full Text: arXiv OA License
Das, Biswajit; Hariharasubramanian, Ramesh Square-free Word-representation of Word-representable Graphs. arXiv:2402.14426 Preprint, arXiv:2402.14426 [math.CO] (2024). BibTeX Cite \textit{B. Das} and \textit{R. Hariharasubramanian}, ``Square-free Word-representation of Word-representable Graphs'', Preprint, arXiv:2402.14426 [math.CO] (2024) Full Text: arXiv OA License
Bisui, Sankhaneel; Das, Sudipta; Hà, Tài Huy; Montaño, Jonathan Rational powers, invariant ideals, and the summation formula. arXiv:2402.12350 Preprint, arXiv:2402.12350 [math.AC] (2024). BibTeX Cite \textit{S. Bisui} et al., ``Rational powers, invariant ideals, and the summation formula'', Preprint, arXiv:2402.12350 [math.AC] (2024) Full Text: arXiv OA License
Das, Suprajo; Dubey, Saipriya; Roy, Sudeshna; Verma, Jugal K. Computing epsilon multiplicities in graded algebras. arXiv:2402.11935 Preprint, arXiv:2402.11935 [math.AC] (2024). MSC: 13H15 13D45 13A02 13A30 14C20 BibTeX Cite \textit{S. Das} et al., ``Computing epsilon multiplicities in graded algebras'', Preprint, arXiv:2402.11935 [math.AC] (2024) Full Text: arXiv OA License
Biswas, Sucharita; Das, Angsuman On a family of quasi-strongly regular Cayley graphs. arXiv:2402.09383 Preprint, arXiv:2402.09383 [math.GR] (2024). MSC: 05E30 05C25 20B25 05E18 BibTeX Cite \textit{S. Biswas} and \textit{A. Das}, ``On a family of quasi-strongly regular Cayley graphs'', Preprint, arXiv:2402.09383 [math.GR] (2024) Full Text: arXiv OA License
Das, Rudrajit; Agarwal, Naman; Sanghavi, Sujay; Dhillon, Inderjit S. Towards Quantifying the Preconditioning Effect of Adam. arXiv:2402.07114 Preprint, arXiv:2402.07114 [cs.LG] (2024). BibTeX Cite \textit{R. Das} et al., ``Towards Quantifying the Preconditioning Effect of Adam'', Preprint, arXiv:2402.07114 [cs.LG] (2024) Full Text: arXiv OA License
Bal, Kaushik; Das, Stuti On a mixed local-nonlocal evolution equation with singular nonlinearity. arXiv:2402.06926 Preprint, arXiv:2402.06926 [math.AP] (2024). MSC: 35K91 BibTeX Cite \textit{K. Bal} and \textit{S. Das}, ``On a mixed local-nonlocal evolution equation with singular nonlinearity'', Preprint, arXiv:2402.06926 [math.AP] (2024) Full Text: arXiv OA License
Das, Ronno; Petersen, Dan The Mumford conjecture (after Bianchi). arXiv:2402.06232 Preprint, arXiv:2402.06232 [math.AT] (2024). MSC: 57K20 14H10 55P48 55R40 BibTeX Cite \textit{R. Das} and \textit{D. Petersen}, ``The Mumford conjecture (after Bianchi)'', Preprint, arXiv:2402.06232 [math.AT] (2024) Full Text: arXiv OA License
Das, Suddhasattwa Functors induced by comma categories. arXiv:2401.14059 Preprint, arXiv:2401.14059 [math.CT] (2024). MSC: 18A05 18A40 18A35 18A25 BibTeX Cite \textit{S. Das}, ``Functors induced by comma categories'', Preprint, arXiv:2401.14059 [math.CT] (2024) Full Text: arXiv OA License
Das, Anupam; De, Abhishek A proof theory of right-linear (omega-)grammars via cyclic proofs. arXiv:2401.13382 Preprint, arXiv:2401.13382 [cs.LO] (2024). BibTeX Cite \textit{A. Das} and \textit{A. De}, ``A proof theory of right-linear (omega-)grammars via cyclic proofs'', Preprint, arXiv:2401.13382 [cs.LO] (2024) Full Text: arXiv OA License
Paul, Sourav; Varma, Anant Vijay; Das, Sourin Fractional Conformal Map, Qubit Dynamics and the Leggett-Garg Inequality. arXiv:2401.10602 Preprint, arXiv:2401.10602 [quant-ph] (2024). BibTeX Cite \textit{S. Paul} et al., ``Fractional Conformal Map, Qubit Dynamics and the Leggett-Garg Inequality'', Preprint, arXiv:2401.10602 [quant-ph] (2024) Full Text: arXiv OA License
Das, Pratulananda; Ghosh, Ayan When ideals properly extend the class of Arbault sets. arXiv:2401.02103 Preprint, arXiv:2401.02103 [math.GN] (2024). BibTeX Cite \textit{P. Das} and \textit{A. Ghosh}, ``When ideals properly extend the class of Arbault sets'', Preprint, arXiv:2401.02103 [math.GN] (2024) Full Text: arXiv OA License
Das, Shrabani; Nongsiang, Deiborlang; Nath, Rajat Kanti Characterization of commuting graphs of finite groups having small genus. arXiv:2401.00993 Preprint, arXiv:2401.00993 [math.GR] (2024). BibTeX Cite \textit{S. Das} et al., ``Characterization of commuting graphs of finite groups having small genus'', Preprint, arXiv:2401.00993 [math.GR] (2024) Full Text: arXiv OA License
Paul, Sanchita; Das, Bapan; Adhikari, Avishek; Saha, Laxman On metric dimension of cube of trees. arXiv:2401.00705 Preprint, arXiv:2401.00705 [math.CO] (2024). BibTeX Cite \textit{S. Paul} et al., ``On metric dimension of cube of trees'', Preprint, arXiv:2401.00705 [math.CO] (2024) Full Text: arXiv OA License
Biswas, Chetna; Das, Subir; Singh, Anup; Altenbach, Holm Solution of variable-order partial integro-differential equation using Legendre wavelet approximation and operational matrices. (English) Zbl 07824457 ZAMM, Z. Angew. Math. Mech. 103, No. 2, Article ID e202200222, 16 p. (2023). MSC: 65M70 65T60 65D32 42C10 65M22 35R09 45K05 26A33 35R11 76S05 86A05 PDFBibTeX XMLCite \textit{C. Biswas} et al., ZAMM, Z. Angew. Math. Mech. 103, No. 2, Article ID e202200222, 16 p. (2023; Zbl 07824457) Full Text: DOI
Bhattacharya, Baby; Das, Birojit; Sree, Anusha G.; Chakraborty, Jayasree Characterizations of generalized fuzzy \(\gamma^*\)-closed sets. (English) Zbl 07821904 Proyecciones 42, No. 6, 1435-1465 (2023). MSC: 54E55 54A40 PDFBibTeX XMLCite \textit{B. Bhattacharya} et al., Proyecciones 42, No. 6, 1435--1465 (2023; Zbl 07821904) Full Text: DOI
Ganguly, Sanchari; Das, Pritha; Maiti, Manoranjan Pricing policy with the effect of fairness concern, imprecise greenness, and prices in imprecise market for a dual channel. (English) Zbl 07821063 Som, Tanmoy (ed.) et al., Applied analysis, optimization and soft computing. ICNAAO-2021, Varanasi, India, December 21–23, 2021. Singapore: Springer. Springer Proc. Math. Stat. 419, 357-378 (2023). MSC: 90B50 91B06 90C08 90C70 91A80 PDFBibTeX XMLCite \textit{S. Ganguly} et al., Springer Proc. Math. Stat. 419, 357--378 (2023; Zbl 07821063) Full Text: DOI
Lacy, Alexanderia; Igoe, Morganne; Das, Praachi; Farthing, Trevor; Lloyd, Alun L.; Lanzas, Cristina; Odoi, Agricola; Lenhart, Suzanne Modeling impact of vaccination on COVID-19 dynamics in St. Louis. (English) Zbl 07819746 J. Biol. Dyn. 17, No. 1, Article ID 2287084, 25 p. (2023). MSC: 92C60 34A30 PDFBibTeX XMLCite \textit{A. Lacy} et al., J. Biol. Dyn. 17, No. 1, Article ID 2287084, 25 p. (2023; Zbl 07819746) Full Text: DOI OA License
Dutta, Lakshmi; Kumar Das, Dushmanta Nonlinear disturbance observer based multiple-model adaptive explicit model predictive control for nonlinear MIMO system. (English) Zbl 07816366 Int. J. Robust Nonlinear Control 33, No. 11, 5934-5955 (2023). MSC: 93B53 93C40 93B45 93C10 93C35 PDFBibTeX XMLCite \textit{L. Dutta} and \textit{D. Kumar Das}, Int. J. Robust Nonlinear Control 33, No. 11, 5934--5955 (2023; Zbl 07816366) Full Text: DOI
Das, Sumanta; Gadgil, Siddhartha Surfaces of infinite-type are non-Hopfian. (Les surfaces de type infini sont non-Hopfian.) (English. French summary) Zbl 07811801 C. R., Math., Acad. Sci. Paris 361, 1349-1356 (2023). MSC: 57K20 55S37 55M25 PDFBibTeX XMLCite \textit{S. Das} and \textit{S. Gadgil}, C. R., Math., Acad. Sci. Paris 361, 1349--1356 (2023; Zbl 07811801) Full Text: DOI arXiv
Mandal, Abhijit; Mallik, Meghlal; Saha, Gopan; Sarkar, Afsar Hossain; Das, Ashoke A study of solitons on para-Sasakian manifolds with respect to a metric connection. (English) Zbl 07811461 J. Adv. Math. Stud. 16, No. 3, 292-303 (2023). MSC: 53C35 53D40 PDFBibTeX XMLCite \textit{A. Mandal} et al., J. Adv. Math. Stud. 16, No. 3, 292--303 (2023; Zbl 07811461)
Granados, Carlos; Das, Ajoy Kanti Tauberian conditions under which convergence follows from Cesàro summability of triple integrals over \({\mathbb{R}}_+^3\). (Tauberian conditions under which convergence follows from Cesáro summability of triple integrals over \({\mathbb{R}}_+^3\).) (English) Zbl 07808299 J. Anal. 31, No. 3, 1951-1985 (2023). MSC: 40E05 40B05 PDFBibTeX XMLCite \textit{C. Granados} and \textit{A. K. Das}, J. Anal. 31, No. 3, 1951--1985 (2023; Zbl 07808299) Full Text: DOI
Das, Anupam; Deuri, Bhuban Chandra Solution of Hammerstein type integral equation with two variables via a new fixed point theorem. (English) Zbl 07808293 J. Anal. 31, No. 3, 1839-1854 (2023). MSC: 47H10 45Gxx PDFBibTeX XMLCite \textit{A. Das} and \textit{B. C. Deuri}, J. Anal. 31, No. 3, 1839--1854 (2023; Zbl 07808293) Full Text: DOI
Das, Spandan; Prabhakar, Pavithra Poster abstract: Stability analysis of planar probabilistic piecewise constant derivative systems. (English) Zbl 07807962 Proceedings of the 26th ACM international conference on hybrid systems: computation and control, HSCC 2023, part of the 16th CPS-IoT week, San Antonio, TX, USA, May 9–12, 2023. New York, NY: Association for Computing Machinery (ACM). Paper No. 21, 2 p. (2023). MSC: 68Q45 68Q60 93C30 PDFBibTeX XMLCite \textit{S. Das} and \textit{P. Prabhakar}, in: Proceedings of the 26th ACM international conference on hybrid systems: computation and control, HSCC 2023, part of the 16th CPS-IoT week, San Antonio, TX, USA, May 9--12, 2023. New York, NY: Association for Computing Machinery (ACM). Paper No. 21, 2 p. (2023; Zbl 07807962) Full Text: DOI
Das, Arpit; Gowdigere, Chethan N.; Mukhi, Sunil; Santara, Jagannath Modular differential equations with movable poles and admissible RCFT characters. (English) Zbl 07807260 J. High Energy Phys. 2023, No. 12, Paper No. 143, 72 p. (2023). MSC: 81-XX PDFBibTeX XMLCite \textit{A. Das} et al., J. High Energy Phys. 2023, No. 12, Paper No. 143, 72 p. (2023; Zbl 07807260) Full Text: DOI arXiv OA License
Das, Lovejoy S. Non-existence of a parallel 2-form on a regular Lorentzian \(\alpha\)-Sasakian manifold with coefficient \(\alpha\) endowed with Ricci soliton. (English) Zbl 07806224 Rom. J. Math. Comput. Sci. 13, No. 1, 20-25 (2023). MSC: 53C15 53C25 53C40 PDFBibTeX XMLCite \textit{L. S. Das}, Rom. J. Math. Comput. Sci. 13, No. 1, 20--25 (2023; Zbl 07806224)
Malik, Prasanta; Das, Samiran Further results on strong \(\lambda \)-statistical convergence of sequences in probabilistic metric spaces. (English) Zbl 07805604 Bol. Soc. Parana. Mat. (3) 41, Paper No. 46, 12 p. (2023). MSC: 54E70 40A99 PDFBibTeX XMLCite \textit{P. Malik} and \textit{S. Das}, Bol. Soc. Parana. Mat. (3) 41, Paper No. 46, 12 p. (2023; Zbl 07805604) Full Text: DOI arXiv
Sapkota, Niraj; Das, Rituparna; Savapondit, Santonu Consistency of an infinite system of third order three-point boundary value problem in the \(bv_0\) space by the theory of measure of noncompactness. (English) Zbl 07805602 Bol. Soc. Parana. Mat. (3) 41, Paper No. 44, 10 p. (2023). MSC: 47H09 47H10 34A34 PDFBibTeX XMLCite \textit{N. Sapkota} et al., Bol. Soc. Parana. Mat. (3) 41, Paper No. 44, 10 p. (2023; Zbl 07805602) Full Text: DOI
Tripathy, Binod Chandra; Paul, Sudipta; Das, Nanda Ram Some fixed point theorems in generalized \(M\)-fuzzy metric space. (English) Zbl 07805568 Bol. Soc. Parana. Mat. (3) 41, Paper No. 9, 7 p. (2023). MSC: 47H10 54H25 PDFBibTeX XMLCite \textit{B. C. Tripathy} et al., Bol. Soc. Parana. Mat. (3) 41, Paper No. 9, 7 p. (2023; Zbl 07805568) Full Text: DOI
Dixit, M. M.; Pandey, C. P.; Das, D. The continuous generalized wavelet transform associated with \(q\)-Bessel operator. (English) Zbl 07805564 Bol. Soc. Parana. Mat. (3) 41, Paper No. 5, 10 p. (2023). MSC: 44A15 PDFBibTeX XMLCite \textit{M. M. Dixit} et al., Bol. Soc. Parana. Mat. (3) 41, Paper No. 5, 10 p. (2023; Zbl 07805564) Full Text: DOI
De, Tarun; Das, Ashok; Singh, Mehakpreet; Kumar, Jitendra Enhancing efficiency in particle aggregation simulations: coarse-grained particle modeling in the DEM-PBM coupled framework. (English) Zbl 07804992 Comput. Methods Appl. Mech. Eng. 417, Part A, Article ID 116436, 21 p. (2023). MSC: 76-XX 82-XX PDFBibTeX XMLCite \textit{T. De} et al., Comput. Methods Appl. Mech. Eng. 417, Part A, Article ID 116436, 21 p. (2023; Zbl 07804992) Full Text: DOI
Das, Anirban; Denker, Manfred; Levina, Anna; Tabacu, Lucia Estimation by stable motions and its applications. (English) Zbl 07803202 Probab. Math. Stat. 43, No. 1, 23-39 (2023). MSC: 62G05 62E17 62G09 62G15 60H05 PDFBibTeX XMLCite \textit{A. Das} et al., Probab. Math. Stat. 43, No. 1, 23--39 (2023; Zbl 07803202) Full Text: DOI
Sen, Sumen; Das, Ishapathik; Ayoob, Fathima Doubly-inflated Poisson INGARCH models for count time series. (English) Zbl 07802820 J. Stat. Theory Pract. 17, No. 4, Paper No. 55, 24 p. (2023). MSC: 62Mxx 62Fxx 62-XX PDFBibTeX XMLCite \textit{S. Sen} et al., J. Stat. Theory Pract. 17, No. 4, Paper No. 55, 24 p. (2023; Zbl 07802820) Full Text: DOI
Hossain, Selina; Das, Arijit; De, Soumen; Mandal, B. N. Gravity waves generated by an oscillatory surface pressure in a two-layer fluid with a porous bottom. (English) Zbl 07802797 J. Eng. Math. 143, Paper No. 2, 32 p. (2023). Reviewer: Denys Dutykh (Le Bourget-du-Lac) MSC: 76B15 76B55 76S05 76M45 PDFBibTeX XMLCite \textit{S. Hossain} et al., J. Eng. Math. 143, Paper No. 2, 32 p. (2023; Zbl 07802797) Full Text: DOI
Das, Utpal Jyoti; Majumdar, Nayan Mani A study of magnetohydrodynamic flow on a channel with induced magnetic field, Soret effect and heat radiation. (English) Zbl 07801492 ZAMM, Z. Angew. Math. Mech. 103, No. 12, Article ID e202200624, 13 p. (2023). MSC: 76W05 76V05 76M55 80A19 80A21 PDFBibTeX XMLCite \textit{U. J. Das} and \textit{N. M. Majumdar}, ZAMM, Z. Angew. Math. Mech. 103, No. 12, Article ID e202200624, 13 p. (2023; Zbl 07801492) Full Text: DOI
Tanwar, Anshika; Das, Subir; Craciun, Eduard-Marius; Altenbach, Holm Interaction among interfacial offset cracks in composite materials under the anti-plane shear loading. (English) Zbl 07801475 ZAMM, Z. Angew. Math. Mech. 103, No. 11, Article ID e202300081, 15 p. (2023). MSC: 74R10 74E30 74E10 74G15 PDFBibTeX XMLCite \textit{A. Tanwar} et al., ZAMM, Z. Angew. Math. Mech. 103, No. 11, Article ID e202300081, 15 p. (2023; Zbl 07801475) Full Text: DOI
Kumar, Ramesh; Khan, Abdul Gaffar; Das, Tarun Persistence and cw-topological stability for set-valued maps. (English) Zbl 07800536 Houston J. Math. 49, No. 2, 369-380 (2023). MSC: 37B25 37B65 54C60 PDFBibTeX XMLCite \textit{R. Kumar} et al., Houston J. Math. 49, No. 2, 369--380 (2023; Zbl 07800536) Full Text: Link
Das, Istayan; Soraisam, Robinson; Singh, Mayanglambam Singhajit; Singha, Nirmal Kumar; Chanam, Barchand Inequalities for complex polynomial with restricted zeros. (English) Zbl 07797389 Nonlinear Funct. Anal. Appl. 28, No. 4, 943-956 (2023). MSC: 30A10 30C10 30C15 PDFBibTeX XMLCite \textit{I. Das} et al., Nonlinear Funct. Anal. Appl. 28, No. 4, 943--956 (2023; Zbl 07797389) Full Text: Link
Raina, Sehar Shakeel; Das, A. K. Relative separation axioms via semi-open sets. (English) Zbl 07796765 Bul. Acad. Științe Repub. Mold., Mat. 2023, No. 2(102), 11-18 (2023). MSC: 54D15 PDFBibTeX XMLCite \textit{S. S. Raina} and \textit{A. K. Das}, Bul. Acad. Științe Repub. Mold., Mat. 2023, No. 2(102), 11--18 (2023; Zbl 07796765) Full Text: DOI
Bakshi, Supratim Das; Machado-Rodríguez, Jonathan; Ramos, Maria Running beyond ALPs: shift-breaking and CP-violating effects. (English) Zbl 07795848 J. High Energy Phys. 2023, No. 11, Paper No. 133, 30 p. (2023). MSC: 81-XX PDFBibTeX XMLCite \textit{S. D. Bakshi} et al., J. High Energy Phys. 2023, No. 11, Paper No. 133, 30 p. (2023; Zbl 07795848) Full Text: DOI arXiv OA License
Singh, Brijesh P.; Das, Utpal Dhar On an induced distribution and its statistical properties. (English) Zbl 07794817 REVSTAT 21, No. 3, 303-319 (2023). MSC: 62G30 PDFBibTeX XMLCite \textit{B. P. Singh} and \textit{U. D. Das}, REVSTAT 21, No. 3, 303--319 (2023; Zbl 07794817) Full Text: DOI arXiv
Babu, Janaki Raman; Das, Prosenjit A criterion to determine residual coordinates of \(\mathbb{A}^{2}\)-fibrations. (English) Zbl 07794722 Proc. Indian Acad. Sci., Math. Sci. 133, No. 2, Paper No. 46, 12 p. (2023). MSC: 14R25 13B25 13N15 PDFBibTeX XMLCite \textit{J. R. Babu} and \textit{P. Das}, Proc. Indian Acad. Sci., Math. Sci. 133, No. 2, Paper No. 46, 12 p. (2023; Zbl 07794722) Full Text: DOI arXiv