Gietzmann, Miles B.; Ostaszewski, Adam J. The kind of silence: managing a reputation for voluntary disclosure in financial markets. (English) Zbl 07786164 Ann. Finance 19, No. 4, 419-447 (2023). MSC: 91G15 PDFBibTeX XMLCite \textit{M. B. Gietzmann} and \textit{A. J. Ostaszewski}, Ann. Finance 19, No. 4, 419--447 (2023; Zbl 07786164) Full Text: DOI arXiv OA License
Miller, H. I.; Miller-Van Wieren, L.; Ostaszewski, A. J. Beyond Erdős-Kunen-Mauldin: shift-compactness properties and singular sets. (English) Zbl 1466.26003 Topology Appl. 291, Article ID 107605, 25 p. (2021). Reviewer: K. P. Hart (Delft) MSC: 26A03 03E15 03E45 28A05 39B22 54E52 PDFBibTeX XMLCite \textit{H. I. Miller} et al., Topology Appl. 291, Article ID 107605, 25 p. (2021; Zbl 1466.26003) Full Text: DOI arXiv Link
Ostaszewski, M.; Miszczak, J. A.; Sadowski, P. Geometrical versus time-series representation of data in quantum control learning. (English) Zbl 1514.81151 J. Phys. A, Math. Theor. 53, No. 19, Article ID 195301, 19 p. (2020). MSC: 81Q93 PDFBibTeX XMLCite \textit{M. Ostaszewski} et al., J. Phys. A, Math. Theor. 53, No. 19, Article ID 195301, 19 p. (2020; Zbl 1514.81151) Full Text: DOI arXiv
Gietzmann, M.; Ostaszewski, A. J.; Schröder, M. H. G. Guiding the guiders: foundations of a market-driven theory of disclosure. (English) Zbl 1460.91293 Jakubowski, Jacek (ed.) et al., Stochastic modeling and control. Based on the Simons semester, Warsaw, Poland, January 2 – March 31, 2019. Warsaw: Polish Academy of Sciences, Institute of Mathematics. Banach Cent. Publ. 122, 107-132 (2020). MSC: 91G50 93E11 93E35 60G35 60G25 PDFBibTeX XMLCite \textit{M. Gietzmann} et al., Banach Cent. Publ. 122, 107--132 (2020; Zbl 1460.91293) Full Text: DOI arXiv
Glos, Adam; Miszczak, Jarosław Adam; Ostaszewski, Mateusz QSWalk.jl: Julia package for quantum stochastic walks analysis. (English) Zbl 07682919 Comput. Phys. Commun. 235, 414-421 (2019). MSC: 81S25 81-04 PDFBibTeX XMLCite \textit{A. Glos} et al., Comput. Phys. Commun. 235, 414--421 (2019; Zbl 07682919) Full Text: DOI arXiv
Ostaszewski, M.; Miszczak, J. A.; Banchi, L.; Sadowski, P. Approximation of quantum control correction scheme using deep neural networks. (English) Zbl 1504.81091 Quantum Inf. Process. 18, No. 5, Paper No. 126, 13 p. (2019). MSC: 81Q93 68T05 68T07 81P73 PDFBibTeX XMLCite \textit{M. Ostaszewski} et al., Quantum Inf. Process. 18, No. 5, Paper No. 126, 13 p. (2019; Zbl 1504.81091) Full Text: DOI arXiv
Glos, Adam; Miszczak, Jarosław Adam; Ostaszewski, Mateusz Limiting properties of stochastic quantum walks on directed graphs. (English) Zbl 1382.81127 J. Phys. A, Math. Theor. 51, No. 3, Article ID 035304, 16 p. (2018). MSC: 81S25 05C81 05C20 PDFBibTeX XMLCite \textit{A. Glos} et al., J. Phys. A, Math. Theor. 51, No. 3, Article ID 035304, 16 p. (2018; Zbl 1382.81127) Full Text: DOI arXiv
Gietzmann, Miles B.; Ostaszewski, Adam J. The sound of silence: equilibrium filtering and optimal censoring in financial markets. (English) Zbl 1427.91293 Adv. Appl. Probab. 48, No. A, 119-144 (2016). MSC: 91G50 91G80 93E11 93E35 60G35 60G25 PDFBibTeX XMLCite \textit{M. B. Gietzmann} and \textit{A. J. Ostaszewski}, Adv. Appl. Probab. 48, No. A, 119--144 (2016; Zbl 1427.91293) Full Text: DOI arXiv Link
Sadowski, Przemysław; Miszczak, Jarosław Adam; Ostaszewski, Mateusz Lively quantum walks on cycles. (English) Zbl 1348.81145 J. Phys. A, Math. Theor. 49, No. 37, Article ID 375302, 13 p. (2016). MSC: 81P45 05C82 81S25 60G50 PDFBibTeX XMLCite \textit{P. Sadowski} et al., J. Phys. A, Math. Theor. 49, No. 37, Article ID 375302, 13 p. (2016; Zbl 1348.81145) Full Text: DOI arXiv
Gietzmann, Miles B.; Ostaszewski, Adam J. Multi-firm voluntary disclosures for correlated operations. (English) Zbl 1298.91184 Ann. Finance 10, No. 1, 1-45 (2014). MSC: 91G50 PDFBibTeX XMLCite \textit{M. B. Gietzmann} and \textit{A. J. Ostaszewski}, Ann. Finance 10, No. 1, 1--45 (2014; Zbl 1298.91184) Full Text: DOI Link
Mao, Hong; Carson, James M.; Ostaszewski, Krzysztof M.; Wen, Zhongkai Optimal decision on dynamic insurance price and investment portfolio of an insurer. (English) Zbl 1284.91255 Insur. Math. Econ. 52, No. 2, 359-369 (2013). MSC: 91B30 91G10 PDFBibTeX XMLCite \textit{H. Mao} et al., Insur. Math. Econ. 52, No. 2, 359--369 (2013; Zbl 1284.91255) Full Text: DOI
Eggleton, Roger; Ostaszewski, Krzysztof The 6666 problem. (English) Zbl 1383.60011 Math. Gaz. 96, No. 535, 39-48 (2012). MSC: 60C05 PDFBibTeX XMLCite \textit{R. Eggleton} and \textit{K. Ostaszewski}, Math. Gaz. 96, No. 535, 39--48 (2012; Zbl 1383.60011) Full Text: DOI
Muldowney, Pat; Ostaszewski, Krzysztof; Wojdowski, Wojciech The Darth Vader Rule. (English) Zbl 1313.26012 Tatra Mt. Math. Publ. 52, 53-63 (2012). Reviewer: Piotr Sworowski (Bydgoszcz) MSC: 26A39 PDFBibTeX XMLCite \textit{P. Muldowney} et al., Tatra Mt. Math. Publ. 52, 53--63 (2012; Zbl 1313.26012)
Miller, Harry I.; Ostaszewski, A. J. Group action and shift-compactness. (English) Zbl 1251.54035 J. Math. Anal. Appl. 392, No. 1, 23-39 (2012). Reviewer: Zbigniew Grande (Bydgoszcz) MSC: 54H11 54H15 54H05 26A03 28A05 03E15 PDFBibTeX XMLCite \textit{H. I. Miller} and \textit{A. J. Ostaszewski}, J. Math. Anal. Appl. 392, No. 1, 23--39 (2012; Zbl 1251.54035) Full Text: DOI
Ostaszewski, Marek; Seredynski, Franciszek; Bouvry, Pascal Coevolutionary-based mechanisms for network anomaly detection. (English) Zbl 1149.90315 J. Math. Model. Algorithms 6, No. 3, 411-431 (2007). MSC: 90B18 90B20 90C99 68T20 68U20 PDFBibTeX XMLCite \textit{M. Ostaszewski} et al., J. Math. Model. Algorithms 6, No. 3, 411--431 (2007; Zbl 1149.90315) Full Text: DOI
Gajek, Leslaw; Ostaszewski, Krzysztof; Zwiesler, Hans-Joachim A primer on duration, convexity, and immunization. (English) Zbl 1192.91188 J. Actuar. Pract. 12, 59-82 (2005). MSC: 91G50 91B30 91G30 PDFBibTeX XMLCite \textit{L. Gajek} et al., J. Actuar. Pract. 12, 59--82 (2005; Zbl 1192.91188)
Carson, James M.; Ostaszewski, Krzysztof The actuarial value of life insurance backdating. (English) Zbl 1090.91549 J. Actuar. Pract. 11, 63-78 (2004). MSC: 91B30 PDFBibTeX XMLCite \textit{J. M. Carson} and \textit{K. Ostaszewski}, J. Actuar. Pract. 11, 63--78 (2004; Zbl 1090.91549)
Ostaszewski, Krzysztof M. Macroeconomic aspects of private retirement programs. (English) Zbl 1083.91547 N. Am. Actuar. J. 5, No. 3, 52-64 (2001). MSC: 91B30 91B28 PDFBibTeX XMLCite \textit{K. M. Ostaszewski}, N. Am. Actuar. J. 5, No. 3, 52--64 (2001; Zbl 1083.91547) Full Text: DOI
Buczolich, Zoltán; Ostaszewski, Krzysztof The Hausdorff dimension of graphs of density continuous functions. II. (English) Zbl 0840.28004 Proc. Am. Math. Soc. 123, No. 6, 1821-1825 (1995). Reviewer: J.Niewiarowski (Łódź) MSC: 28A78 37A99 28D05 PDFBibTeX XMLCite \textit{Z. Buczolich} and \textit{K. Ostaszewski}, Proc. Am. Math. Soc. 123, No. 6, 1821--1825 (1995; Zbl 0840.28004) Full Text: DOI
Ciesielski, Krzysztof; Larson, Lee; Ostaszewski, Krzysztof \({\mathcal I}\)-density continuous functions. (English) Zbl 0801.26001 Mem. Am. Math. Soc. 515, 133 p. (1994). Reviewer: J.Niewiarowski (Łódź) MSC: 26A15 26A21 28A05 PDFBibTeX XMLCite \textit{K. Ciesielski} et al., \({\mathcal I}\)-density continuous functions. Providence, RI: American Mathematical Society (AMS) (1994; Zbl 0801.26001) Full Text: DOI Link
Ostaszewski, Krzysztof Division space axiomatics. (English) Zbl 0876.26011 Acta Math. Inform. Univ. Ostrav. 1, 47-58 (1993). Reviewer: J.Mawhin (Louvain-La-Neuve) MSC: 26A39 28C20 PDFBibTeX XMLCite \textit{K. Ostaszewski}, Acta Math. Inform. Univ. Ostrav. 1, 47--58 (1993; Zbl 0876.26011) Full Text: EuDML
Ciesielski, Krzysztof; Larson, Lee; Ostaszewski, Krzysztof Semigroups of \(\mathcal I\)-density continuous functions. (English) Zbl 0773.26002 Semigroup Forum 45, No. 2, 191-204 (1992). Reviewer: K.D.Magill jun.(Buffalo) MSC: 26A15 54H15 20M20 PDFBibTeX XMLCite \textit{K. Ciesielski} et al., Semigroup Forum 45, No. 2, 191--204 (1992; Zbl 0773.26002) Full Text: DOI EuDML
Buczolich, Zoltán; Ostaszewski, Krzysztof The Hausdorff dimension of graphs of density continuous functions. (English) Zbl 0732.28006 Proc. Am. Math. Soc. 112, No. 4, 1037-1043 (1991). Reviewer: J.Niewiarowski (Łódź) MSC: 28A78 26A30 26A15 PDFBibTeX XMLCite \textit{Z. Buczolich} and \textit{K. Ostaszewski}, Proc. Am. Math. Soc. 112, No. 4, 1037--1043 (1991; Zbl 0732.28006) Full Text: DOI
Mikusiński, Piotr; Ostaszewski, Krzysztof The space of Henstock integrable functions. II. (English) Zbl 0732.46018 New integrals, Proc. Henstock Conf., Coleraine/Ireland 1988, Lect. Notes Math. 1419, 136-149 (1990). Reviewer: J.Mawhin (Louvain-La-Neuve) MSC: 46E30 46F05 26A39 PDFBibTeX XML
Ciesielski, Krzysztof; Larson, Lee; Ostaszewski, Krzysztof Differentiability and density continuity. (English) Zbl 0714.26003 Real Anal. Exch. 15(1989/90), No. 1, 239-247 (1990). Reviewer: J.Niewiarowski MSC: 26A24 26A15 26A27 PDFBibTeX XMLCite \textit{K. Ciesielski} et al., Real Anal. Exch. 15, No. 1, 239--247 (1990; Zbl 0714.26003)
Ciesielski, Krzysztof; Larson, Lee; Ostaszewski, Krzysztof Density continuity versus continuity. (English) Zbl 0714.26002 Forum Math. 2, No. 3, 265-275 (1990). Reviewer: J.Niewiarowski MSC: 26A15 26A21 PDFBibTeX XMLCite \textit{K. Ciesielski} et al., Forum Math. 2, No. 3, 265--275 (1990; Zbl 0714.26002) Full Text: DOI EuDML Link
Ostaszewski, Krzysztof Semigroups of density-continuous functions. (English) Zbl 0681.26001 Real Anal. Exch. 14(1988/89), No. 1, 104-114 (1989). Reviewer: J.Niewiarowski MSC: 26A15 20M20 26A24 PDFBibTeX XMLCite \textit{K. Ostaszewski}, Real Anal. Exch. 14, No. 1, 104--114 (1989; Zbl 0681.26001)
Ostaszewski, Krysztof The space of Henstock integrable functions of two variables. (English) Zbl 0662.26003 Int. J. Math. Math. Sci. 11, No. 1, 15-22 (1988). Reviewer: Jean Mawhin (Louvain-La-Neuve) MSC: 26A39 26A42 46A08 PDFBibTeX XMLCite \textit{K. Ostaszewski}, Int. J. Math. Math. Sci. 11, No. 1, 15--22 (1988; Zbl 0662.26003) Full Text: DOI EuDML
Ostaszewski, Krzysztof; Sochacki, James Gronwall’s inequality and the Henstock integral. (English) Zbl 0651.26014 J. Math. Anal. Appl. 128, 370-374 (1987). Reviewer: J.Mawhin MSC: 26D10 26A39 PDFBibTeX XMLCite \textit{K. Ostaszewski} and \textit{J. Sochacki}, J. Math. Anal. Appl. 128, 370--374 (1987; Zbl 0651.26014) Full Text: DOI
Ostaszewski, Krzysztof Nonabsolute integration in the plane. (English) Zbl 0614.26006 Real Anal. Exch. 11(1985/86), 30-39 (1986). Reviewer: J.Mawhin MSC: 26B15 PDFBibTeX XMLCite \textit{K. Ostaszewski}, Real Anal. Exch. 11, 30--39 (1986; Zbl 0614.26006)
Ostaszewski, Krzysztof M. Henstock integration in the plane. (English) Zbl 0596.26005 Mem. Am. Math. Soc. 353, 106 p. (1986). Reviewer: J.Mawhin MSC: 26A39 26B15 PDFBibTeX XMLCite \textit{K. M. Ostaszewski}, Henstock integration in the plane. Providence, RI: American Mathematical Society (AMS) (1986; Zbl 0596.26005) Full Text: DOI
Ostaszewski, Krzysztof Variational equivalence and generalized absolute continuity. (English) Zbl 0622.26010 Real Anal. Exch. 10(1984/85), 220-229 (1985). Reviewer: J.Mawhin MSC: 26B15 26A39 PDFBibTeX XMLCite \textit{K. Ostaszewski}, Real Anal. Exch. 10, 220--229 (1985; Zbl 0622.26010)
Ostaszewski, Krzysztof Topology for the spaces of Denjoy integrable functions. (English) Zbl 0576.26013 Real Anal. Exch. 9, 79-85 (1984). Reviewer: J.Niewiarowski MSC: 26A39 PDFBibTeX XMLCite \textit{K. Ostaszewski}, Real Anal. Exch. 9, 79--85 (1984; Zbl 0576.26013)
Ostaszewski, Krzysztof Density topology and the Luzin (N) condition. (English) Zbl 0576.26005 Real Anal. Exch. 9, 390-393 (1984). Reviewer: J.Niewiarowski MSC: 26A15 PDFBibTeX XMLCite \textit{K. Ostaszewski}, Real Anal. Exch. 9, 390--393 (1984; Zbl 0576.26005)
Ostaszewski, Krzysztof Continuity in the density topology. II. (English) Zbl 0564.26001 Rend. Circ. Mat. Palermo, II. Ser. 32, 398-414 (1983). Reviewer: J.Niewiarowski MSC: 26A15 26A24 PDFBibTeX XMLCite \textit{K. Ostaszewski}, Rend. Circ. Mat. Palermo (2) 32, 398--414 (1983; Zbl 0564.26001) Full Text: DOI
Ostaszewski, Krzysztof Two modifications of the approximate derivative. (English) Zbl 0528.26001 Demonstr. Math. 15, 899-911 (1982). MSC: 26A24 PDFBibTeX XMLCite \textit{K. Ostaszewski}, Demonstr. Math. 15, 899--911 (1982; Zbl 0528.26001) Full Text: DOI
Ostaszewski, Krzysztof Continuity in the density topology. (English) Zbl 0494.26004 Real Anal. Exch. 7, 259-270 (1982). MSC: 26A15 PDFBibTeX XMLCite \textit{K. Ostaszewski}, Real Anal. Exch. 7, 259--270 (1982; Zbl 0494.26004)
Mathias, A. R. D.; Ostaszewski, A. J.; Talagrand, Michel On the existence of an analytic set meeting each compact set in a Borel set. (English) Zbl 0385.03039 Math. Proc. Camb. Philos. Soc. 84, 5-10 (1978). MSC: 03E15 28A05 54E50 PDFBibTeX XMLCite \textit{A. R. D. Mathias} et al., Math. Proc. Camb. Philos. Soc. 84, 5--10 (1978; Zbl 0385.03039) Full Text: DOI