Basu, Somnath; Bhowmick, Aritra; Samanta, Sandip On the James brace product: Generalization, relation to \(H\)-splitting of loop space fibrations & the \(J\)-homomorphism. arXiv:2401.16206 Preprint, arXiv:2401.16206 [math.AT] (2024). MSC: 55Q15 55R15 55R05 55R25 55Q35 55Q50 55P10 55P35 55P45 55P62 BibTeX Cite \textit{S. Basu} et al., ``On the James brace product: Generalization, relation to $H$-splitting of loop space fibrations & the $J$-homomorphism'', Preprint, arXiv:2401.16206 [math.AT] (2024) Full Text: arXiv OA License
Balderrama, William Algebraic theories of power operations. (English) Zbl 07782685 J. Topol. 16, No. 4, 1543-1640 (2023). MSC: 55Q35 55S35 16S37 18C10 55N22 55P42 PDFBibTeX XMLCite \textit{W. Balderrama}, J. Topol. 16, No. 4, 1543--1640 (2023; Zbl 07782685) Full Text: DOI arXiv OA License
Wittich, Thor Operations on Milnor-Witt K-theory. arXiv:2308.01008 Preprint, arXiv:2308.01008 [math.AT] (2023). MSC: 19D45 14F42 55Q35 55Q45 55S25 BibTeX Cite \textit{T. Wittich}, ``Operations on Milnor-Witt K-theory'', Preprint, arXiv:2308.01008 [math.AT] (2023) Full Text: arXiv OA License
Blanc, David; Johnson, Mark W.; Turner, James M. Higher homotopy invariants for spaces and maps. (English) Zbl 1479.55023 Algebr. Geom. Topol. 21, No. 5, 2425-2488 (2021). Reviewer: Marek Golasiński (Olsztyn) MSC: 55Q35 18G31 55P15 55U35 PDFBibTeX XMLCite \textit{D. Blanc} et al., Algebr. Geom. Topol. 21, No. 5, 2425--2488 (2021; Zbl 1479.55023) Full Text: DOI arXiv
Basu, Samik; Blanc, David; Sen, Debasis Note on Toda brackets. (English) Zbl 1460.55016 J. Homotopy Relat. Struct. 15, No. 3-4, 495-510 (2020). Reviewer: Marek Golasiński (Olsztyn) MSC: 55Q35 55P99 55Q40 PDFBibTeX XMLCite \textit{S. Basu} et al., J. Homotopy Relat. Struct. 15, No. 3--4, 495--510 (2020; Zbl 1460.55016) Full Text: DOI arXiv
Oshima, H.; Oshima, K. Unstable higher Toda brackets. (English) Zbl 1437.55018 Math. J. Okayama Univ. 62, 27-86 (2020). Reviewer: Marek Golasiński (Olsztyn) MSC: 55Q05 55Q35 55P05 PDFBibTeX XMLCite \textit{H. Oshima} and \textit{K. Oshima}, Math. J. Okayama Univ. 62, 27--86 (2020; Zbl 1437.55018) Full Text: arXiv Link
Blanc, David; Johnson, Mark W.; Turner, James M. A constructive approach to higher homotopy operations. (English) Zbl 1429.55013 Davis, Daniel G. (ed.) et al., Homotopy theory: tools and applications. A conference in honor of Paul Goerss’s 60th birthday, University of Illinois at Urbana-Champaign, Urbana, IL, USA, July 17–21, 2017. Providence, RI: American Mathematical Society (AMS). Contemp. Math. 729, 21-74 (2019). Reviewer: Philippe Gaucher (Paris) MSC: 55P99 18N40 55Q35 55S20 55U35 PDFBibTeX XMLCite \textit{D. Blanc} et al., Contemp. Math. 729, 21--74 (2019; Zbl 1429.55013) Full Text: DOI arXiv
Zare, Hadi On the unstable Hurewicz homomorphism and Toda brackets. (English) Zbl 1471.55012 Bull. Iran. Math. Soc. 44, No. 3, 781-805 (2018). MSC: 55P47 55Q35 PDFBibTeX XMLCite \textit{H. Zare}, Bull. Iran. Math. Soc. 44, No. 3, 781--805 (2018; Zbl 1471.55012) Full Text: DOI
Arkowitz, Martin Binary operations for homotopy groups with coefficients. (English) Zbl 1412.55012 Sci. China, Math. 61, No. 9, 1543-1552 (2018). Reviewer: Marek Golasiński (Olsztyn) MSC: 55Q35 16E30 55Q05 PDFBibTeX XMLCite \textit{M. Arkowitz}, Sci. China, Math. 61, No. 9, 1543--1552 (2018; Zbl 1412.55012) Full Text: DOI arXiv
de Souza Cardim, Nancy; Mello, Maria Hermínia Paula Leite; da Silva, Mário Olivero Marques Join product of generators of homotopy groups of the Stiefel manifolds of 5-frames and 6-frames. (English) Zbl 1394.55012 Topology Appl. 244, 1-11 (2018). Reviewer: Branislav Prvulovic (Belgrade) MSC: 55R10 55R50 55Q35 58K45 PDFBibTeX XMLCite \textit{N. de Souza Cardim} et al., Topology Appl. 244, 1--11 (2018; Zbl 1394.55012) Full Text: DOI
Oda, Nobuyuki Algebraic and homotopy theoretical methods in the study of manifolds and their applications. (Japanese) Zbl 1379.57002 Fukuoka Univ. Sci. Rep. 47, No. 1, 64-67 (2017). MSC: 57-02 57N65 55P10 55Q35 PDFBibTeX XMLCite \textit{N. Oda}, Fukuoka Univ. Sci. Rep. 47, No. 1, 64--67 (2017; Zbl 1379.57002)
Golasiński, Marek; de Melo, Thiago On the higher Whitehead product. (English) Zbl 1373.55021 J. Homotopy Relat. Struct. 11, No. 4, 825-845 (2016). Reviewer: Beatrice Bleile (Armidale) MSC: 55Q15 55Q35 PDFBibTeX XMLCite \textit{M. Golasiński} and \textit{T. de Melo}, J. Homotopy Relat. Struct. 11, No. 4, 825--845 (2016; Zbl 1373.55021) Full Text: DOI arXiv
Baues, Hans-Joachim; Blanc, David; Gondhali, Shilpa Higher Toda brackets and Massey products. (English) Zbl 1360.18026 J. Homotopy Relat. Struct. 11, No. 4, 643-677 (2016). Reviewer: Philippe Gaucher (Paris) MSC: 18G55 55S20 55S30 55Q35 18D20 PDFBibTeX XMLCite \textit{H.-J. Baues} et al., J. Homotopy Relat. Struct. 11, No. 4, 643--677 (2016; Zbl 1360.18026) Full Text: DOI arXiv
de Soouza Cardim, Nancy; Lam, Kee Y.; Mello, Maria Hermínia de P. L.; Randall, Duane; da Silva, Mário Olivero Marques Span of orthogonal sphere bundles over spheres. (English) Zbl 1337.55016 Topology Appl. 202, 325-336 (2016). MSC: 55R10 55R50 55Q35 58K45 PDFBibTeX XMLCite \textit{N. de Soouza Cardim} et al., Topology Appl. 202, 325--336 (2016; Zbl 1337.55016) Full Text: DOI
Ōshima, Hideaki; Ōshima, Katsumi Another description of quasi tertiary composition. (English) Zbl 1336.55010 Math. J. Okayama Univ. 58, 109-123 (2016). Reviewer: Haruo Minami (Nara) MSC: 55Q05 55Q35 PDFBibTeX XMLCite \textit{H. Ōshima} and \textit{K. Ōshima}, Math. J. Okayama Univ. 58, 109--123 (2016; Zbl 1336.55010) Full Text: Link
Baues, Hans-Joachim; Frankland, Martin The realizability of operations on homotopy groups concentrated in two degrees. (English) Zbl 1347.55012 J. Homotopy Relat. Struct. 10, No. 4, 843-873 (2015). Reviewer: Katsumi Shimomura (Kochi) MSC: 55Q35 55Q40 55Q45 55Q15 55P20 PDFBibTeX XMLCite \textit{H.-J. Baues} and \textit{M. Frankland}, J. Homotopy Relat. Struct. 10, No. 4, 843--873 (2015; Zbl 1347.55012) Full Text: DOI arXiv
Inoue, Tomohisa; Miyauchi, Toshiyuki; Mukai, Juno The 2-components of the 31-stem homotopy groups of the 9 and 10-spheres. (English) Zbl 1387.55018 J. Fac. Sci., Shinshu Univ. 46, 1-19 (2015). MSC: 55Q40 55Q35 PDFBibTeX XMLCite \textit{T. Inoue} et al., J. Fac. Sci., Shinshu Univ. 46, 1--19 (2015; Zbl 1387.55018) Full Text: arXiv
Livernet, Muriel Pre-Lie systems and obstructions to \(A_\infty\)-structures over a ring. (English) Zbl 1322.16007 J. Homotopy Relat. Struct. 9, No. 1, 109-124 (2014). MSC: 16E45 16E40 55Q35 PDFBibTeX XMLCite \textit{M. Livernet}, J. Homotopy Relat. Struct. 9, No. 1, 109--124 (2014; Zbl 1322.16007) Full Text: DOI arXiv
Hasui, Sho; Kishimoto, Daisuke; Ohsita, Akihiro Samelson products in \(p\)-regular exceptional Lie groups. (English) Zbl 1303.55004 Topology Appl. 178, 17-29 (2014). Reviewer: Cenap Özel (Bolu) MSC: 55Q15 55Q35 57T20 57T10 PDFBibTeX XMLCite \textit{S. Hasui} et al., Topology Appl. 178, 17--29 (2014; Zbl 1303.55004) Full Text: DOI arXiv
Roitberg, Joseph Note on the homotopy groups of a bouquet \(S^1\vee Y\), \(Y\) \(1\)-connected. (English) Zbl 1286.55005 Homology Homotopy Appl. 16, No. 1, 83-87 (2014). Reviewer: Kohhei Yamaguchi (Tokyo) MSC: 55Q20 55Q35 55P40 22E20 22E25 PDFBibTeX XMLCite \textit{J. Roitberg}, Homology Homotopy Appl. 16, No. 1, 83--87 (2014; Zbl 1286.55005) Full Text: DOI
Grbić, Jelena; Theriault, Stephen; Wu, Jie Suspension splittings and James-Hopf invariants. (English) Zbl 1296.55011 Proc. R. Soc. Edinb., Sect. A, Math. 144, No. 1, 87-108 (2014). Reviewer: Kohhei Yamaguchi (Tokyo) MSC: 55P10 55P40 55Q35 55Q25 55P45 PDFBibTeX XMLCite \textit{J. Grbić} et al., Proc. R. Soc. Edinb., Sect. A, Math. 144, No. 1, 87--108 (2014; Zbl 1296.55011) Full Text: DOI
Badzioch, Bernard; Blanc, David; Dorabiała, Wojciech Recognizing mapping spaces. (English) Zbl 1281.55014 J. Pure Appl. Algebra 218, No. 1, 181-196 (2014). Reviewer: Richard John Steiner (Glasgow) MSC: 55Q35 55S20 PDFBibTeX XMLCite \textit{B. Badzioch} et al., J. Pure Appl. Algebra 218, No. 1, 181--196 (2014; Zbl 1281.55014) Full Text: DOI arXiv
Hutschenreuter, Katja On rigidity of the ring spectra \(P_m\mathbb S_{(p)}\) and \(ko\). (English) Zbl 1296.55002 Bonn: Univ. Bonn, Mathematisch-Naturwissenschaftliche Fakultät (Diss.). 65 p. (2012). MSC: 55-02 55P43 55P42 55Q35 PDFBibTeX XMLCite \textit{K. Hutschenreuter}, On rigidity of the ring spectra \(P_m\mathbb S_{(p)}\) and \(ko\). Bonn: Univ. Bonn, Mathematisch-Naturwissenschaftliche Fakultät (Diss.) (2012; Zbl 1296.55002) Full Text: Link
Blanc, David; Johnson, Mark W.; Turner, James M. Higher homotopy operations and André-Quillen cohomology. (English) Zbl 1246.55013 Adv. Math. 230, No. 2, 777-817 (2012). Reviewer: Yutaka Hemmi (Kochi) MSC: 55Q35 18G55 55N99 PDFBibTeX XMLCite \textit{D. Blanc} et al., Adv. Math. 230, No. 2, 777--817 (2012; Zbl 1246.55013) Full Text: DOI arXiv
Hirato, Yoshihiro; Takase, Masamichi Compositions of equi-dimensional fold maps. (English) Zbl 1244.57053 Fundam. Math. 216, No. 2, 119-128 (2012). MSC: 57R45 55Q45 57R35 55Q35 PDFBibTeX XMLCite \textit{Y. Hirato} and \textit{M. Takase}, Fundam. Math. 216, No. 2, 119--128 (2012; Zbl 1244.57053) Full Text: DOI
Frankland, Martin Moduli spaces of 2-stage Postnikov systems. (English) Zbl 1227.55006 Topology Appl. 158, No. 11, 1296-1306 (2011). Reviewer: Jérôme Scherer (Lausanne) MSC: 55P15 55Q35 55S45 18G30 PDFBibTeX XMLCite \textit{M. Frankland}, Topology Appl. 158, No. 11, 1296--1306 (2011; Zbl 1227.55006) Full Text: DOI arXiv
Baues, Hans-Joachim; Muro, Fernando The algebra of secondary homotopy operations in ring spectra. (English) Zbl 1217.55002 Proc. Lond. Math. Soc. (3) 102, No. 4, 637-696 (2011). Reviewer: Richard John Steiner (Glasgow) MSC: 55P42 55P43 55Q35 55S20 55S30 PDFBibTeX XMLCite \textit{H.-J. Baues} and \textit{F. Muro}, Proc. Lond. Math. Soc. (3) 102, No. 4, 637--696 (2011; Zbl 1217.55002) Full Text: DOI arXiv Link
Marcum, Howard J.; Oda, Nobuyuki Long box bracket operations in homotopy theory. (English) Zbl 1227.55015 Appl. Categ. Struct. 19, No. 1, 137-173 (2011). Reviewer: Sergey Melikhov (Moskva) MSC: 55Q40 55Q35 18G55 18D05 PDFBibTeX XMLCite \textit{H. J. Marcum} and \textit{N. Oda}, Appl. Categ. Struct. 19, No. 1, 137--173 (2011; Zbl 1227.55015) Full Text: DOI
Hardie, K. A.; Kamps, K. H.; Witbooi, P. J. A coherent homotopy category of 2-track commutative cubes. (English) Zbl 1219.18009 Appl. Categ. Struct. 19, No. 1, 39-60 (2011). Reviewer: Jérôme Scherer (Lausanne) MSC: 18G55 18D05 18B30 55P10 55Q35 PDFBibTeX XMLCite \textit{K. A. Hardie} et al., Appl. Categ. Struct. 19, No. 1, 39--60 (2011; Zbl 1219.18009) Full Text: DOI
Marcum, Howard J.; Oda, Nobuyuki Hopf invariants, Toda brackets and the reduced diagonal map. (English) Zbl 1267.55005 Topology Appl. 158, No. 1, 15-37 (2011). Reviewer: Daniel Tanré (Villeneuve d’ Ascq) MSC: 55Q25 55M30 55Q35 PDFBibTeX XMLCite \textit{H. J. Marcum} and \textit{N. Oda}, Topology Appl. 158, No. 1, 15--37 (2011; Zbl 1267.55005) Full Text: DOI
Mikhailov, Roman; Wu, Jie On homotopy groups of the suspended classifying spaces. (English) Zbl 1196.55017 Algebr. Geom. Topol. 10, No. 1, 565-625 (2010). Reviewer: John F. Oprea (Cleveland) MSC: 55Q52 55P20 55P40 55P65 55Q35 PDFBibTeX XMLCite \textit{R. Mikhailov} and \textit{J. Wu}, Algebr. Geom. Topol. 10, No. 1, 565--625 (2010; Zbl 1196.55017) Full Text: arXiv
Blanc, David; Johnson, Mark W.; Turner, James M. Higher homotopy operations and cohomology. (English) Zbl 1207.55012 J. \(K\)-Theory 5, No. 1, 167-200 (2010). Reviewer: Bernard Badzioch (Buffalo) MSC: 55Q35 55S20 PDFBibTeX XMLCite \textit{D. Blanc} et al., J. \(K\)-Theory 5, No. 1, 167--200 (2010; Zbl 1207.55012) Full Text: DOI arXiv
Baues, Hans-Joachim; Bleile, Beatrice Presentation of homotopy types under a space. arXiv:1005.4810 Preprint, arXiv:1005.4810 [math.AT] (2010). MSC: 55-02 55P05 55P15 55Q15 55Q35 55U35 18B40 BibTeX Cite \textit{H.-J. Baues} and \textit{B. Bleile}, ``Presentation of homotopy types under a space'', Preprint, arXiv:1005.4810 [math.AT] (2010) Full Text: arXiv OA License
Marcum, Howard J.; Oda, Nobuyuki Composition properties of box brackets. (English) Zbl 1226.18005 J. Math. Soc. Japan 61, No. 2, 507-549 (2009). MSC: 18D05 55P40 55Q35 55Q40 PDFBibTeX XMLCite \textit{H. J. Marcum} and \textit{N. Oda}, J. Math. Soc. Japan 61, No. 2, 507--549 (2009; Zbl 1226.18005) Full Text: DOI Link
Baues, Hans-Joachim; Muro, Fernando Toda brackets and cup-one squares for ring spectra. (English) Zbl 1166.18006 Commun. Algebra 37, No. 1, 56-82 (2009). Reviewer: Antonio R. Garzón (Granada) MSC: 18G50 55P42 55Q35 PDFBibTeX XMLCite \textit{H.-J. Baues} and \textit{F. Muro}, Commun. Algebra 37, No. 1, 56--82 (2009; Zbl 1166.18006) Full Text: DOI arXiv Link
Baues, Hans-Joachim; Muro, Fernando Smash products for secondary homotopy groups. (English) Zbl 1156.55010 Appl. Categ. Struct. 16, No. 5, 551-616 (2008). Reviewer: Jean Claude Thomas (Angers) MSC: 55Q35 55Q15 55S45 PDFBibTeX XMLCite \textit{H.-J. Baues} and \textit{F. Muro}, Appl. Categ. Struct. 16, No. 5, 551--616 (2008; Zbl 1156.55010) Full Text: DOI arXiv
Blanc, David Comparing homotopy categories. (English) Zbl 1155.55007 J. \(K\)-Theory 2, No. 1, 169-205 (2008). Reviewer: Antonio R. Garzón (Granada) MSC: 55U35 55P65 55Q35 18G55 PDFBibTeX XMLCite \textit{D. Blanc}, J. \(K\)-Theory 2, No. 1, 169--205 (2008; Zbl 1155.55007) Full Text: DOI arXiv
Cohen, F. R.; Johnson, I. On the degree 2 map for a sphere. (English) Zbl 1104.55005 Ádem, Alejandro (ed.) et al., Recent developments in algebraic topology. A conference to celebrate Sam Gitler’s 70th birthday, San Miguel de Allende, México, December 3–6, 2003. Providence, RI: American Mathematical Society (AMS) (ISBN 0-8218-3676-5/pbk). Contemporary Mathematics 407, 83-99 (2006). Reviewer: Kohhei Yamaguchi (Tokyo) MSC: 55Q05 55Q35 55S20 55P35 PDFBibTeX XMLCite \textit{F. R. Cohen} and \textit{I. Johnson}, Contemp. Math. 407, 83--99 (2006; Zbl 1104.55005) Full Text: arXiv
Ōshima, Hideaki Samelson products in the exceptional Lie group of rank 2. (English) Zbl 1090.55003 J. Math. Kyoto Univ. 45, No. 2, 411-420 (2005). Reviewer: Jie Wu (Singapore) MSC: 55Q52 55Q35 55Q15 57T20 PDFBibTeX XMLCite \textit{H. Ōshima}, J. Math. Kyoto Univ. 45, No. 2, 411--420 (2005; Zbl 1090.55003) Full Text: DOI
Brown, Ronald; Kamps, K. H.; Porter, Timothy A homotopy double groupoid of a Hausdorff space. II: A van Kampen theorem. (English) Zbl 1076.18004 Theory Appl. Categ. 14, 200-220 (2005). Reviewer: Richard John Steiner (Glasgow) MSC: 18D05 20L05 55Q05 55Q35 PDFBibTeX XMLCite \textit{R. Brown} et al., Theory Appl. Categ. 14, 200--220 (2005; Zbl 1076.18004) Full Text: arXiv EuDML Link
Yamaguchi, Kohhei Remark on cup-products. (English) Zbl 1066.55011 Math. J. Okayama Univ. 46, 115-120 (2004). Reviewer: Friedrich Wilhelm Bauer (Frankfurt a. M.) MSC: 55Q15 55N45 55Q35 PDFBibTeX XMLCite \textit{K. Yamaguchi}, Math. J. Okayama Univ. 46, 115--120 (2004; Zbl 1066.55011)
Lee, Kee-Young; Mimura, Mamoru; Woo, Moo Ha Gottlieb groups of homogeneous spaces. (English) Zbl 1064.55010 Topology Appl. 145, No. 1-3, 147-155 (2004). Reviewer: Daciberg Gonçalves (São Paulo) MSC: 55Q10 55Q35 55P99 PDFBibTeX XMLCite \textit{K.-Y. Lee} et al., Topology Appl. 145, No. 1--3, 147--155 (2004; Zbl 1064.55010) Full Text: DOI
Hamanaka, Hiroaki Adams \(e\)-invariant, Toda bracket and \([X,U(n)]\). (English) Zbl 1062.55012 J. Math. Kyoto Univ. 43, No. 4, 815-827 (2004). Reviewer: J. Remedios (La Laguna) MSC: 55Q35 PDFBibTeX XMLCite \textit{H. Hamanaka}, J. Math. Kyoto Univ. 43, No. 4, 815--827 (2004; Zbl 1062.55012) Full Text: DOI
Blanc, David Homotopy operations and rational homotopy type. (English) Zbl 1052.55011 Arone, Gregory (ed.) et al., Categorical decomposition techniques in algebraic topology. Proceedings of the international conference in algebraic topology, Isle of Skye, UK, June 2001. Basel: Birkhäuser (ISBN 3-7643-0400-6/hbk). Prog. Math. 215, 47-75 (2004). Reviewer: Yves Félix (Louvain-La-Neuve) MSC: 55P62 55Q35 55P15 18G50 PDFBibTeX XMLCite \textit{D. Blanc}, Prog. Math. 215, 47--75 (2004; Zbl 1052.55011) Full Text: arXiv
Brown, Ronald; Janelidze, George Galois theory and a new homotopy double groupoid of a map of spaces. (English) Zbl 1050.18005 Appl. Categ. Struct. 12, No. 1, 63-80 (2004). Reviewer: K. H. Kamps (Hagen) MSC: 18D05 20L05 55Q05 55Q35 18G55 PDFBibTeX XMLCite \textit{R. Brown} and \textit{G. Janelidze}, Appl. Categ. Struct. 12, No. 1, 63--80 (2004; Zbl 1050.18005) Full Text: DOI arXiv
Hardie, K. A.; Kamps, K. H.; Marcum, H. J.; Oda, N. Triple brackets and lax morphism categories. (English) Zbl 1042.18005 Appl. Categ. Struct. 12, No. 1, 3-27 (2004). Reviewer: Richard John Steiner (Glasgow) MSC: 18D05 55Q35 55P40 PDFBibTeX XMLCite \textit{K. A. Hardie} et al., Appl. Categ. Struct. 12, No. 1, 3--27 (2004; Zbl 1042.18005) Full Text: DOI
de Souza Cardim, Nancy; de P. L. Mello, Maria Hermínia; Randall, Duane; Marques da Silva, Mário Olivero Join products and indices of \(k\)-fields over differentiable fiber bundles. (English) Zbl 1058.57020 Topology Appl. 136, No. 1-3, 275-291 (2004). Reviewer: Gheorghe Pitiş (Braşov) MSC: 57R25 55R10 55Q35 57R20 PDFBibTeX XMLCite \textit{N. de Souza Cardim} et al., Topology Appl. 136, No. 1--3, 275--291 (2004; Zbl 1058.57020) Full Text: DOI
Percy, Andrew Some examples of homotopy \(\Pi\)-algebras. (English) Zbl 1037.55005 Expo. Math. 21, No. 1, 47-62 (2003). Reviewer: Marek Golasiński (Toruń) MSC: 55Q35 55P99 PDFBibTeX XMLCite \textit{A. Percy}, Expo. Math. 21, No. 1, 47--62 (2003; Zbl 1037.55005) Full Text: DOI
Marcum, Howard J. On the Hopf invariant of the Hopf construction. (English) Zbl 1037.55004 Cornea, O. (ed.) et al., Lusternik-Schnirelmann category and related topics. Proceedings of the 2001 AMS-IMS-SIAM joint summer research conference on Lusternik-Schnirelmann category in the new millennium, South Hadley, MA, USA, July 29–August 2, 2001. Providence, RI: American Mathematical Society (AMS) (ISBN 0-8218-2800-2/pbk). Contemp. Math. 316, 147-174 (2002). Reviewer: Rainer Vogt (Osnabrück) MSC: 55Q25 55Q15 55Q35 PDFBibTeX XMLCite \textit{H. J. Marcum}, Contemp. Math. 316, 147--174 (2002; Zbl 1037.55004)
Hardie, K. A.; Kamps, K. H.; Marcum, H. J. The Toda bracket in the homotopy category of a track bicategory. (English) Zbl 1020.18002 J. Pure Appl. Algebra 175, No. 1-3, 109-133 (2002). Reviewer: K.H.Kamps (Hagen) MSC: 18D05 55Q05 55Q35 55Q25 55Q40 55U35 PDFBibTeX XMLCite \textit{K. A. Hardie} et al., J. Pure Appl. Algebra 175, No. 1--3, 109--133 (2002; Zbl 1020.18002) Full Text: DOI
Brown, Ronald; Hardie, Keith A.; Kamps, Klaus Heiner; Porter, Timothy A homotopy double groupoid of a Hausdorff space. (English) Zbl 0986.18010 Theory Appl. Categ. 10, 71-93 (2002). Reviewer: Richard John Steiner (Glasgow) MSC: 18D05 20L05 55Q35 55Q05 PDFBibTeX XMLCite \textit{R. Brown} et al., Theory Appl. Categ. 10, 71--93 (2002; Zbl 0986.18010) Full Text: EuDML EMIS
Bruner, Robert R. Extended powers of manifolds and the Adams spectral sequence. (English) Zbl 0983.55012 Greenlees, J. P. C. (ed.) et al., Homotopy methods in algebraic topology. Proceedings of an AMS-IMS-SIAM joint summer research conference, University of Colorado, Boulder, CO, USA, June 20-24, 1999. Providence, RI: American Mathematical Society (AMS). Contemp. Math. 271, 41-51 (2001). Reviewer: Keith Johnson (Halifax) MSC: 55Q35 57R15 55T15 55Q45 55S10 55S12 55S25 55Q10 57R90 PDFBibTeX XMLCite \textit{R. R. Bruner}, Contemp. Math. 271, 41--51 (2001; Zbl 0983.55012)
Marcum, Howard J. Joins, diagonals and Hopf invariants. (English) Zbl 0976.55011 Maruyama, Ken-ichi (ed.) et al., Groups of homotopy self-equivalences and related topics. Proceedings of the workshop, Gargnano, Italy, September 5-11, 1999. Providence, RI: American Mathematical Society (AMS). Contemp. Math. 274, 203-224 (2001). Reviewer: Richard John Steiner (Glasgow) MSC: 55Q25 55Q15 55Q35 PDFBibTeX XMLCite \textit{H. J. Marcum}, Contemp. Math. 274, 203--224 (2001; Zbl 0976.55011)
Hardie, K. A.; Kamps, K. H. The homotopy groups of the homotopy fibre of an induced map of function spaces. (English) Zbl 0978.55011 Maruyama, Ken-ichi (ed.) et al., Groups of homotopy self-equivalences and related topics. Proceedings of the workshop, Gargnano, Italy, September 5-11, 1999. Providence, RI: American Mathematical Society (AMS). Contemp. Math. 274, 159-167 (2001). Reviewer: Richard John Steiner (Glasgow) MSC: 55Q05 55Q35 55R05 55P10 PDFBibTeX XMLCite \textit{K. A. Hardie} and \textit{K. H. Kamps}, Contemp. Math. 274, 159--167 (2001; Zbl 0978.55011)
Hardie, K. A.; Kamps, K. H.; Kieboom, R. W. A homotopy bigroupoid of a topological space. (English) Zbl 0987.18006 Appl. Categ. Struct. 9, No. 3, 311-327 (2001). Reviewer: T.Porter (Bangor) MSC: 18D05 55Q05 20L05 55Q35 PDFBibTeX XMLCite \textit{K. A. Hardie} et al., Appl. Categ. Struct. 9, No. 3, 311--327 (2001; Zbl 0987.18006) Full Text: DOI
Blanc, David CW simplicial resolutions of spaces with an application to loop spaces. (English) Zbl 0944.55008 Topology Appl. 100, No. 2-3, 151-175 (2000). Reviewer: D.W.Kahn (Minneapolis) MSC: 55Q05 18G55 55Q35 55P35 PDFBibTeX XMLCite \textit{D. Blanc}, Topology Appl. 100, No. 2--3, 151--175 (2000; Zbl 0944.55008) Full Text: DOI arXiv
Baues, Hans-Joachim; Goerss, Paul A homotopy operation spectral sequence for the computation of homotopy groups. (English) Zbl 0958.55013 Topology 39, No. 1, 161-192 (2000). Reviewer: Rick Jardine (London /Ontario) MSC: 55Q35 55T99 PDFBibTeX XMLCite \textit{H.-J. Baues} and \textit{P. Goerss}, Topology 39, No. 1, 161--192 (2000; Zbl 0958.55013) Full Text: DOI
Mukai, Juno; Shinpo, Tomohiro Some homotopy groups of the \(\text{mod }4\) Moore space. (English) Zbl 0948.55013 J. Fac. Sci., Shinshu Univ. 34, No. 1, 1-14 (1999). Reviewer: Daciberg Gonçalves (São Paulo) MSC: 55Q52 55P42 55Q35 PDFBibTeX XMLCite \textit{J. Mukai} and \textit{T. Shinpo}, J. Fac. Sci., Shinshu Univ. 34, No. 1, 1--14 (1999; Zbl 0948.55013)
Baues, Hans-Joachim Derived functors of graded theories. (English) Zbl 0929.18006 \(K\)-Theory 17, No. 2, 151-193 (1999). Reviewer: R.J.Steiner (Glasgow) MSC: 18G10 55Q35 18G40 18A25 PDFBibTeX XMLCite \textit{H.-J. Baues}, \(K\)-Theory 17, No. 2, 151--193 (1999; Zbl 0929.18006) Full Text: DOI
Rognes, John Algebraic \(K\)-theory of the two-adic integers. (English) Zbl 0929.19004 J. Pure Appl. Algebra 134, No. 3, 287-326 (1999). Reviewer: Bjørn Dundas (Trondheim) MSC: 19D55 11S70 19D50 55P42 55Q35 55Q50 12G05 19F99 PDFBibTeX XMLCite \textit{J. Rognes}, J. Pure Appl. Algebra 134, No. 3, 287--326 (1999; Zbl 0929.19004) Full Text: DOI
Hardie, K. A.; Kamps, K. H.; Kieboom, R. W. Higher homotopy groupoids and Toda brackets. (English) Zbl 1002.55011 Homology Homotopy Appl. 1, 117-134 (1999). MSC: 55Q05 55Q35 55U35 18D05 PDFBibTeX XMLCite \textit{K. A. Hardie} et al., Homology Homotopy Appl. 1, 117--134 (1999; Zbl 1002.55011) Full Text: DOI EuDML EMIS
Smirnov, V. A. Homotopy type and \(A_\infty\)-group structure. (English. Russian original) Zbl 0912.55010 Sb. Math. 189, No. 10, 1563-1572 (1998); translation from Mat. Sb. 189, No. 10, 135-144 (1998). Reviewer: R.J.Steiner (Glasgow) MSC: 55Q35 55P15 55S45 55P45 PDFBibTeX XMLCite \textit{V. A. Smirnov}, Sb. Math. 189, No. 10, 1563--1572 (1998; Zbl 0912.55010); translation from Mat. Sb. 189, No. 10, 135--144 (1998) Full Text: DOI
Bruner, Robert R. Some root invariants and Steenrod operations in \(\text{Ext}_A(F_2,F_2)\). (English) Zbl 0915.55007 Mahowald, Mark (ed.) et al., Homotopy theory via algebraic geometry and group representations. Proceedings of a conference on homotopy theory, Evanston, IL, USA, March 23–27, 1997. Providence, RI: American Mathematical Society. Contemp. Math. 220, 27-33 (1998). MSC: 55S10 55Q45 55Q35 55Q91 55P42 55P91 55T15 PDFBibTeX XMLCite \textit{R. R. Bruner}, Contemp. Math. 220, 27--33 (1998; Zbl 0915.55007)
Mukai, Juno Correction to “On stable homotopy of complex projective space”. (English) Zbl 0887.55013 Jap. J. Math., New Ser. 23, No. 2, 379-383 (1997). Reviewer: Y.Nomura (Okayama) MSC: 55Q40 55Q35 55Q52 PDFBibTeX XMLCite \textit{J. Mukai}, Jpn. J. Math., New Ser. 23, No. 2, 379--383 (1997; Zbl 0887.55013)
Blanc, David Loop spaces and homotopy operations. (English) Zbl 0940.55014 Fundam. Math. 154, No. 1, 75-95 (1997). Reviewer: Y.S.Yoon (Taejon) MSC: 55P45 55P35 55Q15 55Q35 PDFBibTeX XMLCite \textit{D. Blanc}, Fundam. Math. 154, No. 1, 75--95 (1997; Zbl 0940.55014) Full Text: arXiv EuDML
Marcum, Howard J. Functorial properties of the Hopf invariant. I. (English) Zbl 0884.55012 Quaest. Math. 19, No. 3-4, 537-584 (1996). Reviewer: K.H.Kamps (Hagen) MSC: 55Q25 55Q35 18D05 PDFBibTeX XMLCite \textit{H. J. Marcum}, Quaest. Math. 19, No. 3--4, 537--584 (1996; Zbl 0884.55012) Full Text: DOI
Hardie, K. A.; Kamps, K. H.; Marcum, H. J. A categorical approach to matrix Toda brackets. (English) Zbl 0843.18004 Trans. Am. Math. Soc. 347, No. 12, 4625-4649 (1995). MSC: 18D05 55Q05 55Q35 PDFBibTeX XMLCite \textit{K. A. Hardie} et al., Trans. Am. Math. Soc. 347, No. 12, 4625--4649 (1995; Zbl 0843.18004) Full Text: DOI
Goerss, Paul G.; Lada, Thomas J. Relations among homotopy operations for simplicial commutative algebras. (English) Zbl 0851.18009 Proc. Am. Math. Soc. 123, No. 9, 2637-2641 (1995). Reviewer: G.Hoff (Villetaneuse) MSC: 18G30 55S99 55Q35 PDFBibTeX XMLCite \textit{P. G. Goerss} and \textit{T. J. Lada}, Proc. Am. Math. Soc. 123, No. 9, 2637--2641 (1995; Zbl 0851.18009) Full Text: DOI
Blanc, David Higher homotopy operations and the realizability of homotopy groups. (English) Zbl 0819.55005 Proc. Lond. Math. Soc., III. Ser. 70, No. 1, 214-240 (1995). Reviewer: D.Blanc (Haifa) MSC: 55Q35 PDFBibTeX XMLCite \textit{D. Blanc}, Proc. Lond. Math. Soc. (3) 70, No. 1, 214--240 (1995; Zbl 0819.55005) Full Text: DOI
Dreckmann, Winfried Distributivity laws in homotopy theory. (Distributivgesetze in der Homotopietheorie.) (German) Zbl 0838.55012 Bonner Mathematische Schriften. 249. Bonn: Univ. Bonn, 96 S. (1993). MSC: 55P99 55Q35 PDFBibTeX XMLCite \textit{W. Dreckmann}, Distributivgesetze in der Homotopietheorie. Bonn: Univ. Bonn (1993; Zbl 0838.55012)
Szűcs, András Geometrical proof of a theorem on suspensions in homotopy groups of spheres. (English) Zbl 0823.55012 Császár, Á. (ed.), Topology. Theory and applications II. 6th Colloquium, Pécs, Hungary, 7th - 11th August 1989. Amsterdam: North- Holland. Colloq. Math. Soc. János Bolyai. 55, 501-505 (1993). Reviewer: I.Pop (Iaşi) MSC: 55Q35 55Q45 57R90 57R42 PDFBibTeX XMLCite \textit{A. Szűcs}, in: Topology. Theory and applications II. 6th Colloquium, Pécs, Hungary, 7th - 11th August 1989. Amsterdam: North-Holland. 501--505 (1993; Zbl 0823.55012)
Hardie, K. A.; Kamps, K. H. Secondary composition operations in homotopy pair theory. (English) Zbl 0805.55010 Tsukuba J. Math. 17, No. 1, 201-220 (1993). Reviewer: W.End (Heidelberg) MSC: 55Q05 55Q10 55Q35 PDFBibTeX XMLCite \textit{K. A. Hardie} and \textit{K. H. Kamps}, Tsukuba J. Math. 17, No. 1, 201--220 (1993; Zbl 0805.55010) Full Text: DOI
Blanc, David Abelian \(\Pi\)-algebras and their projective dimension. (English) Zbl 0789.55012 Tangora, Martin C. (ed.), Algebraic topology, Oaxtepec 1991. Proceedings of an international conference on algebraic topology, held July 4-11, 1991 in Oaxtepec, Mexico. Providence, RI: American Mathematical Society. Contemp. Math. 146, 39-48 (1993). MSC: 55Q35 18G20 PDFBibTeX XMLCite \textit{D. Blanc}, Contemp. Math. 146, 39--48 (1993; Zbl 0789.55012)
Hardie, K. A.; Mahowald, M. E. On cup-one and Toda bracket. (English) Zbl 0803.55004 Quaest. Math. 16, No. 2, 193-207 (1993). Reviewer: W.End (Heidelberg) MSC: 55Q35 PDFBibTeX XMLCite \textit{K. A. Hardie} and \textit{M. E. Mahowald}, Quaest. Math. 16, No. 2, 193--207 (1993; Zbl 0803.55004) Full Text: DOI
Oda, Nobuyuki Pairings of homotopy sets over and under \(B\). (English) Zbl 0706.55009 Can. Math. Bull. 36, No. 2, 231-240 (1993). MSC: 55Q35 55Q05 55U35 PDFBibTeX XMLCite \textit{N. Oda}, Can. Math. Bull. 36, No. 2, 231--240 (1993; Zbl 0706.55009) Full Text: DOI
Costenoble, Steven R.; Waner, Stefan Generalized Toda brackets and equivariant Moore spectra. (English) Zbl 0767.55006 Trans. Am. Math. Soc. 333, No. 2, 849-863 (1992). Reviewer: J.F.Oprea (Cleveland) MSC: 55N91 55P91 55S91 55N25 55Q91 55S36 55Q35 PDFBibTeX XMLCite \textit{S. R. Costenoble} and \textit{S. Waner}, Trans. Am. Math. Soc. 333, No. 2, 849--863 (1992; Zbl 0767.55006) Full Text: DOI
Lundell, Albert T. Homotopy operations in symplectic and orthogonal groups. (English) Zbl 0723.55007 J. Math. Kyoto Univ. 31, No. 1, 181-190 (1991). Reviewer: M.Mimura (Okayama) MSC: 55Q35 PDFBibTeX XMLCite \textit{A. T. Lundell}, J. Math. Kyoto Univ. 31, No. 1, 181--190 (1991; Zbl 0723.55007) Full Text: DOI
Hardie, K. A.; Kamps, K. H.; Marcum, H. Computing homotopy groups of a homotopy pullback. (English) Zbl 0747.55010 Quaest. Math. 14, No. 2, 179-199 (1991). Reviewer: W.End (Heidelberg) MSC: 55Q35 55Q05 PDFBibTeX XMLCite \textit{K. A. Hardie} et al., Quaest. Math. 14, No. 2, 179--199 (1991; Zbl 0747.55010) Full Text: DOI
Hardie, K. A. Approximating the homotopy sequence of a pair of spaces. (English) Zbl 0736.55010 Tsukuba J. Math. 15, No. 1, 85-98 (1991). Reviewer: W. End (Heidelberg) MSC: 55Q35 55Q40 55Q25 55Q15 PDFBibTeX XMLCite \textit{K. A. Hardie}, Tsukuba J. Math. 15, No. 1, 85--98 (1991; Zbl 0736.55010) Full Text: DOI
Baues, Hans-Joachim; Dreckmann, Winfried The cohomology of homotopy categories and the general linear group. (English) Zbl 0701.18009 \(K\)-Theory 3, No. 4, 307-338 (1989). Reviewer: R.J.Steiner MSC: 18G55 18D05 20F28 55P10 55Q35 55R35 55U35 19D10 PDFBibTeX XMLCite \textit{H.-J. Baues} and \textit{W. Dreckmann}, \(K\)-Theory 3, No. 4, 307--338 (1989; Zbl 0701.18009) Full Text: DOI
Oka, Shichirô Existence of the unstable Adams map. (English) Zbl 0668.55013 Mem. Fac. Sci., Kyushu Univ., Ser. A 42, No. 2, 95-108 (1988). Reviewer: Y.Nomura MSC: 55Q40 55Q25 55Q35 55Q15 55P40 PDFBibTeX XMLCite \textit{S. Oka}, Mem. Fac. Sci., Kyushu Univ., Ser. A 42, No. 2, 95--108 (1988; Zbl 0668.55013) Full Text: DOI
Hemmi, Yutaka Mod 3 homotopy associative H-spaces which are products of spheres. (English) Zbl 0658.55004 Hiroshima Math. J. 18, No. 2, 227-243 (1988). Reviewer: J.R.Hubbuck MSC: 55P45 55S20 55Q35 PDFBibTeX XMLCite \textit{Y. Hemmi}, Hiroshima Math. J. 18, No. 2, 227--243 (1988; Zbl 0658.55004)
Mahowald, Mark; Thompson, Robert Unstable compositions related to the image of J. (English) Zbl 0652.55014 Proc. Am. Math. Soc. 102, No. 2, 431-436 (1988). MSC: 55Q40 55Q50 55Q35 PDFBibTeX XMLCite \textit{M. Mahowald} and \textit{R. Thompson}, Proc. Am. Math. Soc. 102, No. 2, 431--436 (1988; Zbl 0652.55014) Full Text: DOI
Oda, Nobuyuki Some relations in the 18-stem of the homotopy groups of spheres. (English) Zbl 0644.55012 Bull. Cent. Res. Inst., Fukuoka Univ. 104, Nat. Sci. 24, 75-83 (1988). Reviewer: M.Mimura MSC: 55Q45 55Q35 PDFBibTeX XMLCite \textit{N. Oda}, Bull. Cent. Res. Inst., Fukuoka Univ., Nat. Sci. 104(24), 75--83 (1988; Zbl 0644.55012)
Moore, J. C.; Neisendorfer, J. A. A view of some aspects of unstable homotopy theory since 1950. (English) Zbl 0662.55005 Homotopy theory, Proc. Symp., Durham/Engl. 1985, Lond. Math. Soc. Lect. Note Ser. 117, 117-148 (1987). Reviewer: S.Kochman MSC: 55Q40 55Q25 55Q35 55-02 PDFBibTeX XML
Mahowald, Mark; Shick, Paul Periodic phenomena in the classical Adams spectral sequence. (English) Zbl 0625.55016 Trans. Am. Math. Soc. 300, 191-206 (1987). Reviewer: B.Metz and K.Knapp MSC: 55T15 55Q45 55S10 55Q35 55N20 PDFBibTeX XMLCite \textit{M. Mahowald} and \textit{P. Shick}, Trans. Am. Math. Soc. 300, 191--206 (1987; Zbl 0625.55016) Full Text: DOI
Ando, Hideo; Fukuhara, Kenzo On Hopf invariants, the Whitehead product, EHP sequences and duality. (English) Zbl 0621.55010 Mem. Coll. Educ., Akita Univ., Nat. Sci. 37, 1-32 (1987). Reviewer: F.Cohen MSC: 55Q35 55Q25 55Q15 PDFBibTeX XMLCite \textit{H. Ando} and \textit{K. Fukuhara}, Mem. Coll. Educ., Akita Univ., Nat. Sci. 37, 1--32 (1987; Zbl 0621.55010)
Hardie, K. A.; Kamps, K. H. On a Kervaire diagram for a homotopy pullback of groupoids. (English) Zbl 0603.20051 Quaest. Math. 10, 63-81 (1986). Reviewer: R.Brown MSC: 20L05 55Q05 55Q35 18G50 55S35 55U35 PDFBibTeX XMLCite \textit{K. A. Hardie} and \textit{K. H. Kamps}, Quaest. Math. 10, 63--81 (1986; Zbl 0603.20051) Full Text: DOI
Hain, Richard M. Mixed Hodge structures on homotopy groups. (English) Zbl 0597.55009 Bull. Am. Math. Soc., New Ser. 14, 111-114 (1986). MSC: 55P62 55Q35 14C30 57T30 14F35 55P35 PDFBibTeX XMLCite \textit{R. M. Hain}, Bull. Am. Math. Soc., New Ser. 14, 111--114 (1986; Zbl 0597.55009) Full Text: DOI
Jones, John D. S. Root invariants, cup-r-products and the Kahn-Priddy theorem. (English) Zbl 0585.55012 Bull. Lond. Math. Soc. 17, 479-483 (1985). Reviewer: Y.Furukawa MSC: 55Q35 55Q45 55P42 PDFBibTeX XMLCite \textit{J. D. S. Jones}, Bull. Lond. Math. Soc. 17, 479--483 (1985; Zbl 0585.55012) Full Text: DOI
Al-Sabti, George Framing sphere bundles over spheres, the Smith pairing, and three-fold Toda brackets. (English) Zbl 0568.55013 Math. Z. 189, 457-463 (1985). Reviewer: M.Mimura MSC: 55Q55 55R10 55Q35 PDFBibTeX XMLCite \textit{G. Al-Sabti}, Math. Z. 189, 457--463 (1985; Zbl 0568.55013) Full Text: DOI EuDML
Barratt, M. G.; Jones, J. D. S.; Mahowald, M. E. Relations amongst Toda brackets and the Kervaire invariant in dimension 62. (English) Zbl 0606.55010 J. Lond. Math. Soc., II. Ser. 30, 533-550 (1984). MSC: 55Q40 55Q35 57R60 PDFBibTeX XMLCite \textit{M. G. Barratt} et al., J. Lond. Math. Soc., II. Ser. 30, 533--550 (1984; Zbl 0606.55010) Full Text: DOI
Nicas, Andrew J. On \(Wh_ 2\) of a Bieberbach group. (English) Zbl 0589.57022 Topology 23, 313-321 (1984). Reviewer: F.Waldhausen MSC: 57Q60 18F25 57Q10 57R52 55Q35 57R80 PDFBibTeX XMLCite \textit{A. J. Nicas}, Topology 23, 313--321 (1984; Zbl 0589.57022) Full Text: DOI
Bruner, Robert A new differential in the Adams spectral sequence. (English) Zbl 0565.55024 Topology 23, 271-276 (1984). MSC: 55T15 55Q45 55Q35 55S10 PDFBibTeX XMLCite \textit{R. Bruner}, Topology 23, 271--276 (1984; Zbl 0565.55024) Full Text: DOI
Kristensen, Leif On the \(\Lambda\)-algebra of operations and its dual. (English) Zbl 0565.55014 Prepr. Ser., Aarhus Univ. 1983/84, No. 36, 37 p. (1984). MSC: 55Q35 55T15 55S10 PDFBibTeX XML
Chan, P. H. A note on the Baratt-Mahowald cup-one products. II. (English) Zbl 0557.55010 Bull. Inst. Math., Acad. Sin. 12, 279-285 (1984). MSC: 55Q35 PDFBibTeX XMLCite \textit{P. H. Chan}, Bull. Inst. Math., Acad. Sin. 12, 279--285 (1984; Zbl 0557.55010)
Hardie, K. A.; Jansen, A. V. Exact sequences in stable homotopy pair theory. (English) Zbl 0527.55021 Trans. Am. Math. Soc. 286, 803-816 (1984). MSC: 55Q05 55Q10 55Q35 55P30 PDFBibTeX XMLCite \textit{K. A. Hardie} and \textit{A. V. Jansen}, Trans. Am. Math. Soc. 286, 803--816 (1984; Zbl 0527.55021) Full Text: DOI
Bruner, Robert R. A new differential in the Adams sequence. (English) Zbl 0513.55015 Topology (to appear). MSC: 55T15 55Q45 55Q35 55S10 PDFBibTeX XML
Brown, Ronald An introduction to simplicial T-complexes. (English) Zbl 0566.55009 Esquisses Math. 32, 27 p. (1983). Reviewer: T.Porter MSC: 55U10 55Q35 18G55 18G30 PDFBibTeX XML
Chan, P. H. On the mapping cone of the quadratic construction. (English) Zbl 0536.55005 Chin. J. Math. 11, 289-296 (1983). MSC: 55Q35 55Q05 PDFBibTeX XMLCite \textit{P. H. Chan}, Chin. J. Math. 11, 289--296 (1983; Zbl 0536.55005)