Saleh, Dana; Quinlan, Rachel 2-uniform covering groups of elementary abelian 2-groups. (English) Zbl 07808412 Commun. Algebra 52, No. 2, 630-656 (2024). Reviewer: Phillip Schultz (Perth) MSC: 20K35 20D15 20C25 PDFBibTeX XMLCite \textit{D. Saleh} and \textit{R. Quinlan}, Commun. Algebra 52, No. 2, 630--656 (2024; Zbl 07808412) Full Text: DOI OA License
Calvert, Wesley; Cenzer, Douglas; Harizanov, Valentina Generically Computable abelian groups. (English) Zbl 07787627 Genova, Daniela (ed.) et al., Unconventional computation and natural computation. 20th international conference, UCNC 2023, Jacksonville, FL, USA, March 13–17, 2023. Proceedings. Cham: Springer. Lect. Notes Comput. Sci. 14003, 32-45 (2023). MSC: 68Q07 68Q09 68Q10 68Q12 PDFBibTeX XMLCite \textit{W. Calvert} et al., Lect. Notes Comput. Sci. 14003, 32--45 (2023; Zbl 07787627) Full Text: DOI
Katayama, Yuta Hecke \(L\)-functions of certain subextensions in an extraspecial extension. (English) Zbl 07733546 SUT J. Math. 59, No. 1, 1-10 (2023). Reviewer: Władysław Narkiewicz (Wrocław) MSC: 11R42 11R20 11R32 PDFBibTeX XMLCite \textit{Y. Katayama}, SUT J. Math. 59, No. 1, 1--10 (2023; Zbl 07733546) Full Text: DOI
Du, Shaofei; Yu, Hao; Luo, Wenjuan Regular Cayley maps of elementary abelian \(p\)-groups: classification and enumeration. (English) Zbl 1517.05183 J. Comb. Theory, Ser. A 198, Article ID 105768, 20 p. (2023). MSC: 05E18 05C25 05C10 05C30 20B25 57M15 PDFBibTeX XMLCite \textit{S. Du} et al., J. Comb. Theory, Ser. A 198, Article ID 105768, 20 p. (2023; Zbl 1517.05183) Full Text: DOI arXiv
Garcia, Vitor Araujo; Ferraz, Raul Antonio Units in some group rings over the ring of \(p\)-cyclotomic integers. (English) Zbl 1522.20022 J. Algebra Appl. 22, No. 5, Article ID 2350104, 8 p. (2023). Reviewer: Christoph Winges (Regensburg) MSC: 20C05 16U60 16S34 PDFBibTeX XMLCite \textit{V. A. Garcia} and \textit{R. A. Ferraz}, J. Algebra Appl. 22, No. 5, Article ID 2350104, 8 p. (2023; Zbl 1522.20022) Full Text: DOI
Lazorec, Mihai-Silviu; Tărnăuceanu, Marius On the average order of a finite group. (English) Zbl 1521.20050 J. Pure Appl. Algebra 227, No. 4, Article ID 107276, 9 p. (2023). Reviewer: Bùi Xuân Hải (Ho Chi Minh City) MSC: 20D60 20D15 PDFBibTeX XMLCite \textit{M.-S. Lazorec} and \textit{M. Tărnăuceanu}, J. Pure Appl. Algebra 227, No. 4, Article ID 107276, 9 p. (2023; Zbl 1521.20050) Full Text: DOI arXiv
Abłamowicz, Rafał On ternary Clifford algebras on two generators defined by extra-special 3-groups of order 27. (English) Zbl 1471.15018 Adv. Appl. Clifford Algebr. 31, No. 4, Paper No. 62, 31 p. (2021). MSC: 15A66 16W50 20C05 20C15 20D15 PDFBibTeX XMLCite \textit{R. Abłamowicz}, Adv. Appl. Clifford Algebr. 31, No. 4, Paper No. 62, 31 p. (2021; Zbl 1471.15018) Full Text: DOI
Muhie, Seid Kassaw; Russo, Francesco G. The probability of commuting subgroups in arbitrary lattices of subgroups. (English) Zbl 1491.20188 Int. J. Group Theory 10, No. 3, 125-135 (2021). MSC: 20P05 20D60 20D30 PDFBibTeX XMLCite \textit{S. K. Muhie} and \textit{F. G. Russo}, Int. J. Group Theory 10, No. 3, 125--135 (2021; Zbl 1491.20188) Full Text: DOI
Han, Lingling; Guo, Xiuyun Counting distinct fuzzy subgroups of finite abelian groups of order \(p^nq^m\). (English) Zbl 1491.20180 J. Mult.-Val. Log. Soft Comput. 35, No. 3-4, 263-280 (2020). MSC: 20N25 20K01 20D60 PDFBibTeX XMLCite \textit{L. Han} and \textit{X. Guo}, J. Mult.-Val. Log. Soft Comput. 35, No. 3--4, 263--280 (2020; Zbl 1491.20180) Full Text: Link
Niemenmaa, Markku On finite commutative IP-loops with elementary abelian inner mapping groups of order \(p^5\). (English) Zbl 1524.20074 Commentat. Math. Univ. Carol. 61, No. 4, 547-551 (2020). MSC: 20N05 20D15 20K01 PDFBibTeX XMLCite \textit{M. Niemenmaa}, Commentat. Math. Univ. Carol. 61, No. 4, 547--551 (2020; Zbl 1524.20074) Full Text: DOI
Norton, Emily Symplectic reflection algebras in positive characteristic as Ore extensions. (English) Zbl 1469.16050 Commun. Algebra 48, No. 8, 3543-3572 (2020). Reviewer: Dmitry Artamonov (Moskva) MSC: 16S32 16G99 16S35 16S37 16S80 16W70 PDFBibTeX XMLCite \textit{E. Norton}, Commun. Algebra 48, No. 8, 3543--3572 (2020; Zbl 1469.16050) Full Text: DOI arXiv
Panda, Ramesh Prasad A combinatorial characterization of finite groups of prime exponent. (English) Zbl 1431.20013 Indag. Math., New Ser. 31, No. 1, 1-6 (2020). MSC: 20D60 05C25 05C40 PDFBibTeX XMLCite \textit{R. P. Panda}, Indag. Math., New Ser. 31, No. 1, 1--6 (2020; Zbl 1431.20013) Full Text: DOI arXiv
Charkani, M. E.; Snanou, N. On a special class of finite \(p\)-groups of maximal class and exponent \(p\). (English) Zbl 1499.20046 JP J. Algebra Number Theory Appl. 44, No. 2, 251-260 (2019). MSC: 20D15 PDFBibTeX XMLCite \textit{M. E. Charkani} and \textit{N. Snanou}, JP J. Algebra Number Theory Appl. 44, No. 2, 251--260 (2019; Zbl 1499.20046) Full Text: DOI
Veretennikov, Boris Mikhaĭlovich The strict upper bound of ranks of commutator subgroups of finite \(p\)-groups. (Russian. English summary) Zbl 1436.20040 Sib. Èlektron. Mat. Izv. 16, 1885-1900 (2019). MSC: 20D60 20D15 20F05 20F12 PDFBibTeX XMLCite \textit{B. M. Veretennikov}, Sib. Èlektron. Mat. Izv. 16, 1885--1900 (2019; Zbl 1436.20040) Full Text: DOI
Campbell, H. E. A.; Chuai, J.; Shank, R. J.; Wehlau, D. L. Representations of elementary abelian \(p\)-groups and finite subgroups of fields. (English) Zbl 1428.13009 J. Pure Appl. Algebra 223, No. 5, 2015-2035 (2019). Reviewer: Matyas Domokos (Budapest) MSC: 13A50 PDFBibTeX XMLCite \textit{H. E. A. Campbell} et al., J. Pure Appl. Algebra 223, No. 5, 2015--2035 (2019; Zbl 1428.13009) Full Text: DOI arXiv
Zhang, Xiaohui; Liu, Linghui; Pan, Lishuang; Lu, Jianyue Complete multipartite graphs which are isomorphic to elementary abelian \(p\)-group Cayley homogeneous factorization. (Chinese. English summary) Zbl 1413.05167 Math. Pract. Theory 48, No. 6, 236-241 (2018). MSC: 05C25 05C70 PDFBibTeX XMLCite \textit{X. Zhang} et al., Math. Pract. Theory 48, No. 6, 236--241 (2018; Zbl 1413.05167)
Kim, Kijung; Song, Sung-Yell; Xu, Bangteng Investigations on association schemes with elementary abelian thin residue. (English) Zbl 1370.05222 Discrete Math. 340, No. 12, 2813-2821 (2017). MSC: 05E30 PDFBibTeX XMLCite \textit{K. Kim} et al., Discrete Math. 340, No. 12, 2813--2821 (2017; Zbl 1370.05222) Full Text: DOI
Anokhin, Mikhail Pseudo-free families of finite computational elementary abelian \(p\)-groups. (English) Zbl 1392.20045 Groups Complex. Cryptol. 9, No. 1, 1-18 (2017). MSC: 20K01 20D15 94A60 PDFBibTeX XMLCite \textit{M. Anokhin}, Groups Complex. Cryptol. 9, No. 1, 1--18 (2017; Zbl 1392.20045) Full Text: DOI
Tărnăuceanu, Marius A new equivalence relation to classify the fuzzy subgroups of finite groups. (English) Zbl 1374.20077 Fuzzy Sets Syst. 289, 113-121 (2016). MSC: 20N25 20D30 PDFBibTeX XMLCite \textit{M. Tărnăuceanu}, Fuzzy Sets Syst. 289, 113--121 (2016; Zbl 1374.20077) Full Text: DOI arXiv
Yu, Jun Maximal abelian subgroups of compact simple Lie groups of type E. (English) Zbl 1397.22006 Geom. Dedicata 185, 205-269 (2016). MSC: 22E15 22C05 20E07 20E45 PDFBibTeX XMLCite \textit{J. Yu}, Geom. Dedicata 185, 205--269 (2016; Zbl 1397.22006) Full Text: DOI arXiv
Mehdipour, Mohammad Javad; Saeedi, Zahra Derivations on group algebras of a locally compact abelian group. (English) Zbl 1355.43003 Monatsh. Math. 180, No. 3, 595-605 (2016). Reviewer: Evgueni Doubtsov (St. Petersburg) MSC: 43A15 46H40 47B47 PDFBibTeX XMLCite \textit{M. J. Mehdipour} and \textit{Z. Saeedi}, Monatsh. Math. 180, No. 3, 595--605 (2016; Zbl 1355.43003) Full Text: DOI
Bunina, E. I.; Mikhalev, A. V.; Roizner, M. A. A criterion for the elementary equivalence of endomorphism rings and automorphism groups of Abelian \(p\)-groups. (English. Russian original) Zbl 1306.20038 Dokl. Math. 90, No. 1, 399-400 (2014); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 457, No. 1, 11-12 (2014). MSC: 20F28 03C60 03C85 20K10 20K30 20A15 16S50 PDFBibTeX XMLCite \textit{E. I. Bunina} et al., Dokl. Math. 90, No. 1, 399--400 (2014; Zbl 1306.20038); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 457, No. 1, 11--12 (2014) Full Text: DOI
Meyer, David C. Universal deformation rings and fusion. (English) Zbl 1310.20011 J. Algebra 417, 275-289 (2014). Reviewer: Frauke Bleher (Iowa City) MSC: 20C15 20C20 16S34 20J06 20C05 20D20 PDFBibTeX XMLCite \textit{D. C. Meyer}, J. Algebra 417, 275--289 (2014; Zbl 1310.20011) Full Text: DOI arXiv
Yamin, Mohammad; Sharma, Poonam Kumar Relative relation modules of finite elementary Abelian \(p\)-groups. (English) Zbl 1298.20007 Bull. Korean Math. Soc. 51, No. 4, 1205-1210 (2014). MSC: 20C05 20E06 16S34 20F05 PDFBibTeX XMLCite \textit{M. Yamin} and \textit{P. K. Sharma}, Bull. Korean Math. Soc. 51, No. 4, 1205--1210 (2014; Zbl 1298.20007) Full Text: DOI Link
Roizner, M. A. A criterion of elementary equivalence of automorphism groups of reduced Abelian \(p\)-groups. (English. Russian original) Zbl 1279.20043 J. Math. Sci., New York 193, No. 4, 586-590 (2013); translation from Fundam. Prikl. Mat. 17(2011/12), No. 5, 157-163 (2012). MSC: 20F28 03C60 03C85 20K10 20K30 20A15 PDFBibTeX XMLCite \textit{M. A. Roizner}, J. Math. Sci., New York 193, No. 4, 586--590 (2013; Zbl 1279.20043); translation from Fundam. Prikl. Mat. 17(2011/12), No. 5, 157--163 (2012) Full Text: DOI
Duflot, Jeanne Numerical invariants for equivariant cohomology. (English) Zbl 1280.55004 Q. J. Math. 64, No. 3, 665-720 (2013). Reviewer: Haruo Minami (Nara) MSC: 55N91 57S15 20J06 PDFBibTeX XMLCite \textit{J. Duflot}, Q. J. Math. 64, No. 3, 665--720 (2013; Zbl 1280.55004) Full Text: DOI
Hiramine, Yutaka On \((p^2,p,p^2,p)\)-difference sets in \(\mathbb{Z}_p^3\). (English) Zbl 1418.05034 J. Stat. Theory Pract. 6, No. 1, 88-86 (2012). MSC: 05B10 20D15 PDFBibTeX XMLCite \textit{Y. Hiramine}, J. Stat. Theory Pract. 6, No. 1, 88--86 (2012; Zbl 1418.05034) Full Text: DOI
Bondarenko, Vitalij M.; Lytvynchuk, Iryna V. The representation type of elementary Abelian \(p\)-groups with respect to the modules of constant Jordan type. (English) Zbl 1294.20011 Algebra Discrete Math. 14, No. 1, 29-36 (2012). MSC: 20C20 16G60 20C05 PDFBibTeX XMLCite \textit{V. M. Bondarenko} and \textit{I. V. Lytvynchuk}, Algebra Discrete Math. 14, No. 1, 29--36 (2012; Zbl 1294.20011)
Couselo, E.; González, S.; Markov, V. T.; Martínez, C.; Nechaev, A. A. Ideal representation of Reed-Solomon and Reed-Muller codes. (English. Russian original) Zbl 1286.94104 Algebra Logic 51, No. 3, 195-212 (2012); translation from Algebra Logika 51, No. 3, 297-320 (2012). MSC: 94B15 PDFBibTeX XMLCite \textit{E. Couselo} et al., Algebra Logic 51, No. 3, 195--212 (2012; Zbl 1286.94104); translation from Algebra Logika 51, No. 3, 297--320 (2012) Full Text: DOI
Hưng, Nguyễn H. V. The homomorphisms between the Dickson-Mùi algebras as modules over the Steenrod algebra. (English) Zbl 1248.55007 Math. Ann. 353, No. 3, 827-866 (2012). Reviewer: Saïd Zarati (Tunis) MSC: 55S10 55S05 20G10 20G05 PDFBibTeX XMLCite \textit{N. H. V. Hưng}, Math. Ann. 353, No. 3, 827--866 (2012; Zbl 1248.55007) Full Text: DOI
Navarro, Gabriel; Robinson, Geoffrey R. On endo-trivial modules for \(p\)-solvable groups. (English) Zbl 1242.20004 Math. Z. 270, No. 3-4, 983-987 (2012). MSC: 20C05 20C20 20D20 PDFBibTeX XMLCite \textit{G. Navarro} and \textit{G. R. Robinson}, Math. Z. 270, No. 3--4, 983--987 (2012; Zbl 1242.20004) Full Text: DOI arXiv
Carlson, Jon F.; Friedlander, Eric M.; Pevtsova, Julia Representations of elementary Abelian \(p\)-groups and bundles on Grassmannians. (English) Zbl 1260.20013 Adv. Math. 229, No. 5, 2985-3051 (2012). Reviewer: Christopher P. Bendel (Menomonie) MSC: 20C20 14M15 14J60 20C05 20K01 14L15 20K10 PDFBibTeX XMLCite \textit{J. F. Carlson} et al., Adv. Math. 229, No. 5, 2985--3051 (2012; Zbl 1260.20013) Full Text: DOI arXiv
Myasnikov, Alexei G.; Sohrabi, Mahmood Groups elementarily equivalent to a free nilpotent group of finite rank. (English) Zbl 1223.03022 Ann. Pure Appl. Logic 162, No. 11, 916-933 (2011). Reviewer: Eric Jaligot (Grenoble) MSC: 03C60 20F18 PDFBibTeX XMLCite \textit{A. G. Myasnikov} and \textit{M. Sohrabi}, Ann. Pure Appl. Logic 162, No. 11, 916--933 (2011; Zbl 1223.03022) Full Text: DOI arXiv
Erfanian, A.; Russo, F. Detecting the commuting probability of the derived subgroup. (English) Zbl 1232.20080 Int. J. Math. Game Theory Algebra 19(2010), No. 5-6, 335-342 (2011). Reviewer: Rashid Rezaei (Malayer) MSC: 20P05 22C05 20D60 20D25 PDFBibTeX XMLCite \textit{A. Erfanian} and \textit{F. Russo}, Int. J. Math. Game Theory Algebra 19, No. 5--6, 335--342 (2011; Zbl 1232.20080)
Benson, David J. Modules of constant Jordan type with one non-projective block. (English) Zbl 1215.20013 Algebr. Represent. Theory 13, No. 3, 315-318 (2010). MSC: 20C20 20C05 20J06 PDFBibTeX XMLCite \textit{D. J. Benson}, Algebr. Represent. Theory 13, No. 3, 315--318 (2010; Zbl 1215.20013) Full Text: DOI
Mazza, Nadia Connected components of the category of elementary Abelian \(p\)-subgroups. (English) Zbl 1165.20016 J. Algebra 320, No. 12, 4242-4248 (2008). Reviewer: A. Caranti (Trento) MSC: 20D20 20C20 20C05 PDFBibTeX XMLCite \textit{N. Mazza}, J. Algebra 320, No. 12, 4242--4248 (2008; Zbl 1165.20016) Full Text: DOI
Oppermann, Steffen A lower bound for the representation dimension of \(kC_p^n\). (English) Zbl 1135.16007 Math. Z. 256, No. 3, 481-490 (2007). Reviewer: Wolfgang Rump (Stuttgart) MSC: 16E10 16S34 16D90 20C20 20C05 16G30 PDFBibTeX XMLCite \textit{S. Oppermann}, Math. Z. 256, No. 3, 481--490 (2007; Zbl 1135.16007) Full Text: DOI
Aljadeff, Eli; Kassel, Christian Norm formulas for finite groups and induction from elementary Abelian subgroups. (English) Zbl 1107.20040 J. Algebra 303, No. 2, 677-706 (2006). Reviewer: Olympia Talelli (Athens) MSC: 20J05 16W22 20C05 PDFBibTeX XMLCite \textit{E. Aljadeff} and \textit{C. Kassel}, J. Algebra 303, No. 2, 677--706 (2006; Zbl 1107.20040) Full Text: DOI arXiv
Friedlander, E. M.; Pevtsova, Julia Erratum to “Representation-theoretic support spaces for finite group schemes”. (English) Zbl 1098.20500 Am. J. Math. 128, No. 4, 1067-1068 (2006). MSC: 20C20 14L15 20G05 20G10 20J06 PDFBibTeX XMLCite \textit{E. M. Friedlander} and \textit{J. Pevtsova}, Am. J. Math. 128, No. 4, 1067--1068 (2006; Zbl 1098.20500) Full Text: DOI
Volovikov, A. Yu. Coincidence points of maps of \(\mathbb Z_p^n\)-spaces. (English. Russian original) Zbl 1105.55001 Izv. Math. 69, No. 5, 913-962 (2005); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 69, No. 5, 53-106 (2005). Reviewer: Christian Fenske (Gießen) MSC: 55M20 55M35 58C30 PDFBibTeX XMLCite \textit{A. Yu. Volovikov}, Izv. Math. 69, No. 5, 913--962 (2005; Zbl 1105.55001); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 69, No. 5, 53--106 (2005) Full Text: DOI
Carlson, Jon F.; Thévenaz, Jacques The classification of torsion endo-trivial modules. (English) Zbl 1110.20005 Ann. Math. (2) 162, No. 2, 823-883 (2005). Reviewer: Burkhard Külshammer (Jena) MSC: 20C05 20C20 20D15 PDFBibTeX XMLCite \textit{J. F. Carlson} and \textit{J. Thévenaz}, Ann. Math. (2) 162, No. 2, 823--883 (2005; Zbl 1110.20005) Full Text: DOI arXiv
Friedlander, Eric M.; Pevtsova, Julia Representation-theoretic support spaces for finite group schemes. (English) Zbl 1072.20009 Am. J. Math. 127, No. 2, 379-420 (2005). Reviewer: Christopher P. Bendel (Menomonie) MSC: 20C20 14L15 20G05 20G10 20J06 PDFBibTeX XMLCite \textit{E. M. Friedlander} and \textit{J. Pevtsova}, Am. J. Math. 127, No. 2, 379--420 (2005; Zbl 1072.20009) Full Text: DOI Link
Carlson, Jon F.; Thévenaz, Jacques The classification of endo-trivial modules. (English) Zbl 1110.20004 Invent. Math. 158, No. 2, 389-411 (2004). MSC: 20C05 20C20 20D15 20J06 PDFBibTeX XMLCite \textit{J. F. Carlson} and \textit{J. Thévenaz}, Invent. Math. 158, No. 2, 389--411 (2004; Zbl 1110.20004) Full Text: DOI Link
Tang, Guoping On a problem of Karpilovsky. (English) Zbl 1034.20006 Algebra Colloq. 10, No. 1, 11-16 (2003). Reviewer: Inder Bir Singh Passi (Allahabad) MSC: 20C05 16S34 PDFBibTeX XMLCite \textit{G. Tang}, Algebra Colloq. 10, No. 1, 11--16 (2003; Zbl 1034.20006) Full Text: DOI
Hoechsmann, Klaus Units in irregular elementary Abelian group rings. (English) Zbl 1039.16033 Resen. Inst. Mat. Estat. Univ. São Paulo 5, No. 4, 279-292 (2002). MSC: 16U60 20C05 11R18 16S34 PDFBibTeX XMLCite \textit{K. Hoechsmann}, Resen. Inst. Mat. Estat. Univ. São Paulo 5, No. 4, 279--292 (2002; Zbl 1039.16033)
Parmenter, M. M. A basis for powers of the augmentation ideal. (English) Zbl 0979.16015 Algebra Colloq. 8, No. 2, 121-128 (2001). Reviewer: S.V.Mihovski (Plovdiv) MSC: 16S34 20C05 20F05 PDFBibTeX XMLCite \textit{M. M. Parmenter}, Algebra Colloq. 8, No. 2, 121--128 (2001; Zbl 0979.16015)
Toffalori, Carlo On some model theoretic problems concerning certain extensions of abelian groups by groups of finite exponent. (English) Zbl 0974.03033 Rend. Semin. Mat. Univ. Padova 103, 113-131 (2000). Reviewer: Rüdiger Göbel (Essen) MSC: 03C60 20A15 20F50 PDFBibTeX XMLCite \textit{C. Toffalori}, Rend. Semin. Mat. Univ. Padova 103, 113--131 (2000; Zbl 0974.03033) Full Text: Numdam EuDML
Wheeler, Wayne W. Quillen stratification for the stable module category. (English) Zbl 0972.20004 Q. J. Math., Oxf. II. Ser. 50, No. 199, 355-369 (1999). Reviewer: Johannes Huebschmann (Villeneuve d’Ascq) MSC: 20C05 20C20 18E30 20J05 PDFBibTeX XMLCite \textit{W. W. Wheeler}, Q. J. Math., Oxf. II. Ser. 50, No. 199, 355--369 (1999; Zbl 0972.20004) Full Text: DOI
Minami, Norihiko The iterated transfer analogue of the new doomsday conjecture. (English) Zbl 0932.55012 Trans. Am. Math. Soc. 351, No. 6, 2325-2351 (1999). Reviewer: Michael Joachim (Münster) MSC: 55Q10 55R35 55T15 55R12 55Q45 55N22 PDFBibTeX XMLCite \textit{N. Minami}, Trans. Am. Math. Soc. 351, No. 6, 2325--2351 (1999; Zbl 0932.55012) Full Text: DOI
Chermak, Andrew Quadratic action and the \({\mathcal P}(G,V)\)-theorem in arbitrary characteristic. (English) Zbl 0940.20016 J. Group Theory 2, No. 1, 1-13 (1999). Reviewer: W.Willems (Magdeburg) MSC: 20C20 20D05 20C05 20D60 20D35 PDFBibTeX XMLCite \textit{A. Chermak}, J. Group Theory 2, No. 1, 1--13 (1999; Zbl 0940.20016) Full Text: DOI
Fukuchi, Yasuhiro Graph labelings in elementary abelian groups. (English) Zbl 0957.05096 Discrete Math. 189, No. 1-3, 117-122 (1998). MSC: 05C78 20K01 PDFBibTeX XMLCite \textit{Y. Fukuchi}, Discrete Math. 189, No. 1--3, 117--122 (1998; Zbl 0957.05096) Full Text: DOI
Henn, Hans-Werner Centralizers of elementary Abelian \(p\)-subgroups and mod-\(p\) cohomology of profinite groups. (English) Zbl 0948.20027 Duke Math. J. 91, No. 3, 561-585 (1998). Reviewer: Pavel Zalesskij (Brasilia) MSC: 20J05 20E18 PDFBibTeX XMLCite \textit{H.-W. Henn}, Duke Math. J. 91, No. 3, 561--585 (1998; Zbl 0948.20027) Full Text: DOI
Lee, Chun-Nip On the finite generation of high dimensional cohomology ring of virtually torsion-free groups. (English) Zbl 0916.20037 Math. Proc. Camb. Philos. Soc. 124, No. 1, 57-72 (1998). Reviewer: J.Huebschmann (Villeneuve d’Ascq) MSC: 20J05 55R35 PDFBibTeX XMLCite \textit{C.-N. Lee}, Math. Proc. Camb. Philos. Soc. 124, No. 1, 57--72 (1998; Zbl 0916.20037) Full Text: DOI
Scheiderer, Claus Farrell cohomology and Brown theorems for profinite groups. (English) Zbl 0885.20017 Manuscr. Math. 91, No. 2, 247-281 (1996). Reviewer: Yu.N.Mukhin (Ekaterinburg) MSC: 20E18 20J05 PDFBibTeX XMLCite \textit{C. Scheiderer}, Manuscr. Math. 91, No. 2, 247--281 (1996; Zbl 0885.20017) Full Text: DOI EuDML
Wheeler, Wayne W. Generic module theory. (English) Zbl 0861.20015 J. Algebra 185, No. 1, 205-228 (1996). Reviewer: W.Müller (Bayreuth) MSC: 20C20 20C05 PDFBibTeX XMLCite \textit{W. W. Wheeler}, J. Algebra 185, No. 1, 205--228 (1996; Zbl 0861.20015) Full Text: DOI
Leutbecher, Armin Number theory. An introduction to algebra. (Zahlentheorie. Eine Einführung in die Algebra.) (German) Zbl 0865.11001 Springer-Lehrbuch. Berlin: Springer. xii, 354 p. (1996). Reviewer: H.Koch (Berlin) MSC: 11-01 12-01 12J20 12F05 12F10 11A15 11A55 11R32 11R11 11R20 11R29 PDFBibTeX XMLCite \textit{A. Leutbecher}, Zahlentheorie. Eine Einführung in die Algebra. Berlin: Springer (1996; Zbl 0865.11001)
Kuhn, Nicholas J.; Winstead, Mark On the torsion in the cohomology of certain mapping spaces. (English) Zbl 0861.55019 Topology 35, No. 4, 875-881 (1996). Reviewer: D.H.Gottlieb (Lafayette) MSC: 55R35 PDFBibTeX XMLCite \textit{N. J. Kuhn} and \textit{M. Winstead}, Topology 35, No. 4, 875--881 (1996; Zbl 0861.55019) Full Text: DOI
El Mossadeq, A. Fractions of resolution \(\omega\) and finite abelian groups. (Fractions de résolution \(\omega\) et groupes abéliens finis.) (French) Zbl 0843.62079 Linear Algebra Appl. 237-238, 539-547 (1996). MSC: 62K15 PDFBibTeX XMLCite \textit{A. El Mossadeq}, Linear Algebra Appl. 237--238, 539--547 (1996; Zbl 0843.62079) Full Text: DOI
Manjrekar, Rajesh The \(\text{mod-}p\) cohomology of \(\text{GL}(2p-2,\mathbb{Z})\). (English) Zbl 0852.20037 J. Algebra 181, No. 3, 697-726 (1996). Reviewer: W.van der Kallen (Utrecht) MSC: 20G10 20H05 PDFBibTeX XMLCite \textit{R. Manjrekar}, J. Algebra 181, No. 3, 697--726 (1996; Zbl 0852.20037) Full Text: DOI
Lee, Chun-Nip Farrell cohomology and centralizers of elementary abelian \(p\)-subgroups. (English) Zbl 0862.20037 Math. Proc. Camb. Philos. Soc. 119, No. 3, 403-417 (1996). Reviewer: U.Stammbach (Zürich) MSC: 20J05 18G40 PDFBibTeX XMLCite \textit{C.-N. Lee}, Math. Proc. Camb. Philos. Soc. 119, No. 3, 403--417 (1996; Zbl 0862.20037) Full Text: DOI
Xia, Yining On the connectivity of posets in the mapping class group. (English) Zbl 0851.20038 Broto, Carles (ed.) et al., Algebraic topology: new trends in localization and periodicity. Barcelona conference on algebraic topology (BCAT), Sant Feliu de Guíxols, Spain, June 1-7, 1994. Basel: Birkhäuser. Prog. Math. 136, 393-400 (1996). MSC: 20F38 55R40 20J05 57N05 20D30 57R20 PDFBibTeX XMLCite \textit{Y. Xia}, Prog. Math. 136, 393--400 (1996; Zbl 0851.20038)
Leary, I. J. A bound on the exponent of the cohomology of \(BC\)-bundles. (English) Zbl 0857.55013 Broto, Carles (ed.) et al., Algebraic topology: new trends in localization and periodicity. Barcelona conference on algebraic topology (BCAT), Sant Feliu de Guíxols, Spain, June 1-7, 1994. Basel: Birkhäuser. Prog. Math. 136, 255-259 (1996). Reviewer: D.W.Kahn (Minneapolis) MSC: 55R40 20J06 PDFBibTeX XMLCite \textit{I. J. Leary}, Prog. Math. 136, 255--259 (1996; Zbl 0857.55013) Full Text: arXiv
Carlson, Jon F. The decomposition of the trivial module in the complexity quotient category. (English) Zbl 0864.20002 J. Pure Appl. Algebra 106, No. 1, 23-44 (1996). Reviewer: T.Porter (Bangor) MSC: 20C05 20J05 PDFBibTeX XMLCite \textit{J. F. Carlson}, J. Pure Appl. Algebra 106, No. 1, 23--44 (1996; Zbl 0864.20002) Full Text: DOI
Benson, D. J. Decomposing the complexity quotient category. (English) Zbl 0884.20003 Math. Proc. Camb. Philos. Soc. 120, No. 4, 589-595 (1996). Reviewer: B.Külshammer (Jena) MSC: 20C05 20J06 16D90 PDFBibTeX XMLCite \textit{D. J. Benson}, Math. Proc. Camb. Philos. Soc. 120, No. 4, 589--595 (1996; Zbl 0884.20003) Full Text: DOI
Solecki, Sławomir Equivalence relations induced by actions of Polish groups. (English) Zbl 0852.04003 Trans. Am. Math. Soc. 347, No. 12, 4765-4777 (1995). MSC: 03E15 20A05 20K25 20K10 PDFBibTeX XMLCite \textit{S. Solecki}, Trans. Am. Math. Soc. 347, No. 12, 4765--4777 (1995; Zbl 0852.04003) Full Text: DOI
Howard, Paul; Rubin, Jean E. Elementary Abelian \(p\)-groups revisited. (English) Zbl 0839.03036 Bull. Aust. Math. Soc. 52, No. 3, 373-376 (1995). Reviewer: N.Brunner (Wien) MSC: 03E25 03E35 20K10 20A15 PDFBibTeX XMLCite \textit{P. Howard} and \textit{J. E. Rubin}, Bull. Aust. Math. Soc. 52, No. 3, 373--376 (1995; Zbl 0839.03036) Full Text: DOI
Lannes, Jean; Zarati, Said Algebraic Smith theory and classification of \(H^*V\)-\({\mathcal U}\)-injectives. (Théorie de Smith algébrique et classification des \(H^*V\)-\(\mathcal{U}\)-injectifs.) (French) Zbl 0862.55002 Bull. Soc. Math. Fr. 123, No. 2, 189-223 (1995). Reviewer: D.C.Johnson (Lexington) MSC: 55M35 18G05 PDFBibTeX XMLCite \textit{J. Lannes} and \textit{S. Zarati}, Bull. Soc. Math. Fr. 123, No. 2, 189--223 (1995; Zbl 0862.55002) Full Text: DOI Numdam EuDML
Richardson, Thomas M. Local subgroups of the Monster and odd code loops. (English) Zbl 0848.20010 Trans. Am. Math. Soc. 347, No. 5, 1453-1531 (1995). Reviewer: V.Mazurov (Novosibirsk) MSC: 20D08 20N05 PDFBibTeX XMLCite \textit{T. M. Richardson}, Trans. Am. Math. Soc. 347, No. 5, 1453--1531 (1995; Zbl 0848.20010) Full Text: DOI
Carlson, Jon F. Depth and transfer maps in the cohomology of groups. (English) Zbl 0837.20062 Math. Z. 218, No. 3, 461-468 (1995). Reviewer: U.Stammbach (Zürich) MSC: 20J06 20D20 20J05 PDFBibTeX XMLCite \textit{J. F. Carlson}, Math. Z. 218, No. 3, 461--468 (1995; Zbl 0837.20062) Full Text: DOI EuDML
Fesenko, Ivan B. Abelian local \(p\)-class field theory. (English) Zbl 0819.11057 Math. Ann. 301, No. 3, 561-586 (1995). Reviewer: I.B.Fesenko (St.Petersburg) MSC: 11S31 19F05 19D45 11R37 11S70 11S15 PDFBibTeX XMLCite \textit{I. B. Fesenko}, Math. Ann. 301, No. 3, 561--586 (1995; Zbl 0819.11057) Full Text: DOI EuDML
Muncke, Andreas The sources of simple modules of \(p\)-solvable groups with elementary Abelian \(p\)-Sylow group of order \(p^ 2\). (English) Zbl 0827.20013 Commun. Algebra 23, No. 2, 569-600 (1995). Reviewer: B.Külshammer (Jena) MSC: 20C20 20C05 16S34 16D60 20D10 PDFBibTeX XMLCite \textit{A. Muncke}, Commun. Algebra 23, No. 2, 569--600 (1995; Zbl 0827.20013) Full Text: DOI
Benson, D. J. Cohomology of modules in the principal block of a finite group. (English) Zbl 0879.20004 New York J. Math. 1, 196-205 (1995). MSC: 20C20 20J06 20C05 PDFBibTeX XMLCite \textit{D. J. Benson}, New York J. Math. 1, 196--205 (1995; Zbl 0879.20004) Full Text: EuDML EMIS
Morini, Fiorenza On \(\Phi_ s\)-simple rings. (Italian. English summary) Zbl 0849.16021 Riv. Mat. Univ. Parma, V. Ser. 3, 211-227 (1994). Reviewer: C.Cotti-Ferrero (Parma) MSC: 16N40 16D60 16S99 16P60 PDFBibTeX XMLCite \textit{F. Morini}, Riv. Mat. Univ. Parma, V. Ser. 3, 211--227 (1994; Zbl 0849.16021)
Niemeyer, Alice C. A finite soluble quotient algorithm. (English) Zbl 0844.20002 J. Symb. Comput. 18, No. 6, 541-561 (1994). Reviewer: J.Neubüser (Aachen) MSC: 20-04 20F05 20F16 20F14 68W30 PDFBibTeX XMLCite \textit{A. C. Niemeyer}, J. Symb. Comput. 18, No. 6, 541--561 (1994; Zbl 0844.20002) Full Text: DOI arXiv
Soueif, L. M.; El-Hefnawy, H. H. Semiprime skew group rings. (English) Zbl 0826.16023 J. Egypt. Math. Soc. 2, 1-7 (1994). Reviewer: D.S.Passman (Madison) MSC: 16S35 16W20 16N60 20C05 PDFBibTeX XMLCite \textit{L. M. Soueif} and \textit{H. H. El-Hefnawy}, J. Egypt. Math. Soc. 2, 1--7 (1994; Zbl 0826.16023)
Segev, Yoav Simply connected coset complexes for rank 1 groups of Lie type. (English) Zbl 0829.20032 Math. Z. 217, No. 2, 199-214 (1994). Reviewer: M.E.Harris (Minneapolis) MSC: 20D30 20D06 55U10 20D20 20J05 55P10 PDFBibTeX XMLCite \textit{Y. Segev}, Math. Z. 217, No. 2, 199--214 (1994; Zbl 0829.20032) Full Text: DOI EuDML
Qu, Minghua; Vanstone, S. A. Factorizations in the elementary abelian \(p\)-group and their cryptographic significance. (English) Zbl 0827.20061 J. Cryptology 7, No. 4, 201-212 (1994). Reviewer: D.Jungnickel (Augsburg) MSC: 20K01 20D60 11T71 94A60 68P25 PDFBibTeX XMLCite \textit{M. Qu} and \textit{S. A. Vanstone}, J. Cryptology 7, No. 4, 201--212 (1994; Zbl 0827.20061) Full Text: DOI
Davis, James A. Partial difference sets in \(p\)-groups. (English) Zbl 0811.05012 Arch. Math. 63, No. 2, 103-110 (1994). Reviewer: J.A.Davis (Richmond) MSC: 05B10 20K01 20D60 PDFBibTeX XMLCite \textit{J. A. Davis}, Arch. Math. 63, No. 2, 103--110 (1994; Zbl 0811.05012) Full Text: DOI
Segev, Yoav; Webb, Peter Extensions of \(G\)-posets and Quillen’s complex. (English) Zbl 0820.20027 J. Aust. Math. Soc., Ser. A 57, No. 1, 60-75 (1994). Reviewer: O.Talelli (Athens) MSC: 20D30 55U10 20J05 05E25 06A11 20C05 20C20 20D20 57M07 PDFBibTeX XMLCite \textit{Y. Segev} and \textit{P. Webb}, J. Aust. Math. Soc., Ser. A 57, No. 1, 60--75 (1994; Zbl 0820.20027)
Johnson, David Copeland; Wilson, W. Stephen; Yan, Dung Yung Brown-Peterson homology of elementary \(p\)-groups. II. (English) Zbl 0857.55004 Topology Appl. 59, No. 2, 117-136 (1994). Reviewer: D.Davis (Bethlehem) MSC: 55N22 PDFBibTeX XMLCite \textit{D. C. Johnson} et al., Topology Appl. 59, No. 2, 117--136 (1994; Zbl 0857.55004) Full Text: DOI
Doerk, Klaus On finite soluble groups which behave like nilpotent groups with respect to the Frattini group. (Über endliche auflösbare Gruppen, die sich gegenüber der Frattinigruppe wie nilpotente Gruppen verhalten.) (German) Zbl 0806.20021 J. Algebra 167, No. 2, 533-537 (1994). Reviewer: W.E.Deskins (Pittsburgh) MSC: 20D10 20D25 20D20 PDFBibTeX XMLCite \textit{K. Doerk}, J. Algebra 167, No. 2, 533--537 (1994; Zbl 0806.20021) Full Text: DOI
Oliver, Bob Higher limits via Steinberg representations. (English) Zbl 0815.55003 Commun. Algebra 22, No. 4, 1381-1393 (1994). Reviewer: K.Pawałowski (Poznań) MSC: 55P99 55U99 18G10 55M30 55P65 PDFBibTeX XMLCite \textit{B. Oliver}, Commun. Algebra 22, No. 4, 1381--1393 (1994; Zbl 0815.55003) Full Text: DOI
Shumyatsky, Pavel Elementary abelian operator groups. (English) Zbl 0799.20021 Manuscr. Math. 82, No. 1, 105-111 (1994). Reviewer: M.Deaconescu (Safat) MSC: 20D10 20F50 20F14 20E36 20F16 20D60 PDFBibTeX XMLCite \textit{P. Shumyatsky}, Manuscr. Math. 82, No. 1, 105--111 (1994; Zbl 0799.20021) Full Text: DOI EuDML
Richardson, Thomas M. Elementary abelian subgroups of the Monster. (English) Zbl 0827.20024 Sehgal, Surinder (ed.) et al., Group theory. Proceedings of the 21st biennial Ohio State-Denison mathematical conference, Granville, OH (USA), 14-16 May, 1992. Singapore: World Scientific. 244-249 (1993). Reviewer: R.Wilson (Birmingham) MSC: 20D08 20E07 20D30 PDFBibTeX XMLCite \textit{T. M. Richardson}, in: Group theory. Proceedings of the 21st biennial Ohio State-Denison mathematical conference, Granville, OH (USA), 14-16 May, 1992. Singapore: World Scientific. 244--249 (1993; Zbl 0827.20024)
Inoue, Koichi; Kono, Akira Nilpotency of a kernel of the Quillen map. (English) Zbl 0809.20041 J. Math. Kyoto Univ. 33, No. 4, 1047-1055 (1993). Reviewer: O.Talelli (Athens) MSC: 20J06 18G40 20E22 19C09 PDFBibTeX XMLCite \textit{K. Inoue} and \textit{A. Kono}, J. Math. Kyoto Univ. 33, No. 4, 1047--1055 (1993; Zbl 0809.20041) Full Text: DOI
Henn, Hans-Werner; Lannes, Jean; Schwartz, Lionel The categories of unstable modules and unstable algebras over the Steenrod algebra modulo nilpotent objects. (English) Zbl 0805.55011 Am. J. Math. 115, No. 5, 1053-1106 (1993). Reviewer: J.Hodgson (Philadelphia) MSC: 55S10 55U99 18E20 PDFBibTeX XMLCite \textit{H.-W. Henn} et al., Am. J. Math. 115, No. 5, 1053--1106 (1993; Zbl 0805.55011) Full Text: DOI Backlinks: MO
Broto, Carlos; Henn, Hans-Werner Some remarks on central elementary abelian \(P\)-subgroups and cohomology of classifying spaces. (English) Zbl 0796.55010 Q. J. Math., Oxf. II. Ser. 44, No. 174, 155-163 (1993). Reviewer: M.Mimura (Okayama) MSC: 55R40 55N91 PDFBibTeX XMLCite \textit{C. Broto} and \textit{H.-W. Henn}, Q. J. Math., Oxf. II. Ser. 44, No. 174, 155--163 (1993; Zbl 0796.55010) Full Text: DOI
Assadi, Amir H. Algebraic invariants for finite group actions. I: Varieties. (English) Zbl 0809.57022 Adv. Math. 100, No. 2, 232-261 (1993). Reviewer: C.J.Allday MSC: 57S17 55P91 55P60 20J06 PDFBibTeX XMLCite \textit{A. H. Assadi}, Adv. Math. 100, No. 2, 232--261 (1993; Zbl 0809.57022) Full Text: DOI
Aschbacher, Michael Simple connectivity of \(p\)-group complexes. (English) Zbl 0829.20031 Isr. J. Math. 82, No. 1-3, 1-43 (1993). Reviewer: M.E.Harris (Minneapolis) MSC: 20D30 20D20 55U10 20J05 20D06 20D08 55P10 PDFBibTeX XMLCite \textit{M. Aschbacher}, Isr. J. Math. 82, No. 1--3, 1--43 (1993; Zbl 0829.20031) Full Text: DOI
Benson, D. J. The image of the transfer map. (English) Zbl 0815.20040 Arch. Math. 61, No. 1, 7-11 (1993). Reviewer: S.D.Kozlov (Barnaul) MSC: 20J06 20D20 PDFBibTeX XMLCite \textit{D. J. Benson}, Arch. Math. 61, No. 1, 7--11 (1993; Zbl 0815.20040) Full Text: DOI
Harris, John C. On certain stable wedge summands of \(B({\mathbb{Z}{}}/p)^ n_ +\). (English) Zbl 0759.55007 Can. J. Math. 44, No. 1, 104-118 (1992). MSC: 55P42 55S10 PDFBibTeX XMLCite \textit{J. C. Harris}, Can. J. Math. 44, No. 1, 104--118 (1992; Zbl 0759.55007) Full Text: DOI
Dwyer, W. G.; Wilkerson, C. W. A cohomology decomposition theorem. (English) Zbl 0756.55012 Topology 31, No. 2, 433-443 (1992). Reviewer: W.Singhof (Düsseldorf) MSC: 55R40 55S10 PDFBibTeX XMLCite \textit{W. G. Dwyer} and \textit{C. W. Wilkerson}, Topology 31, No. 2, 433--443 (1992; Zbl 0756.55012) Full Text: DOI
Xia, Yining The \(p\)-torsion of the Farrell-Tate cohomology of the mapping class group \({\Gamma{}}_{p-1}\). (English) Zbl 0758.57012 J. Pure Appl. Algebra 78, No. 3, 319-334 (1992). Reviewer: V.A.Broughton MSC: 57N05 20J05 55R40 55N91 57R50 55T10 20J99 PDFBibTeX XMLCite \textit{Y. Xia}, J. Pure Appl. Algebra 78, No. 3, 319--334 (1992; Zbl 0758.57012) Full Text: DOI
Adem, Alejandro; Milgram, R. James Invariants and cohomology of groups. (English) Zbl 0845.20037 Bol. Soc. Mat. Mex., II. Ser. 37, No. 1-2, 1-25 (1992). Reviewer: J.Huebschmann (Bonn) MSC: 20J05 20J06 20D08 PDFBibTeX XMLCite \textit{A. Adem} and \textit{R. J. Milgram}, Bol. Soc. Mat. Mex., II. Ser. 37, No. 1--2, 1--25 (1992; Zbl 0845.20037)
Mislin, Guido Cohomologically central elements and fusion in groups. (English) Zbl 0753.55006 Algebraic topology, Proc. Conf., S. Feliu de Guíxols/Spain 1990, Lect. Notes Math. 1509, 294-300 (1992). Reviewer: W.Grölz (Ammerbuch) MSC: 55R40 PDFBibTeX XMLCite \textit{G. Mislin}, Lect. Notes Math. 1509, 294--300 (1992; Zbl 0753.55006)
Broué, Michel; Malle, Gunter Generic Sylow theorems for the reductive groups over finite fields. (Théorèmes de Sylow génériques pour les groupes réductifs sur les corps finis.) (French) Zbl 0820.20057 Math. Ann. 292, No. 2, 241-262 (1992). Reviewer: James F. Hurley (Storrs) MSC: 20G40 20D20 20F40 20E42 17B20 20E07 PDFBibTeX XMLCite \textit{M. Broué} and \textit{G. Malle}, Math. Ann. 292, No. 2, 241--262 (1992; Zbl 0820.20057) Full Text: DOI EuDML
Yamin, Mohammad Minimal relative relation modules of finite \(p\)-groups. (English) Zbl 0724.20007 Proc. Am. Math. Soc. 118, No. 1, 1-3 (1993). Reviewer: M.Yamin (New Delhi) MSC: 20C05 20F05 20E06 20D15 16S34 PDFBibTeX XMLCite \textit{M. Yamin}, Proc. Am. Math. Soc. 118, No. 1, 1--3 (1992; Zbl 0724.20007) Full Text: DOI
Lannes, Jean [Zisman, Michel] On function spaces whose source is the classifying space of an elementary abelian \(p\)-group. (Sur les espaces fonctionnels dont la source est le classifiant d’un \(p\)-group abélien élémentaire. (Appendice par Michel Zisman).) (French) Zbl 0857.55011 Publ. Math., Inst. Hautes Étud. Sci. 75, 135-244 (1992). Reviewer: P.Landweber (New Brunswick) MSC: 55P99 55S10 PDFBibTeX XMLCite \textit{J. Lannes}, Publ. Math., Inst. Hautes Étud. Sci. 75, 135--244 (1992; Zbl 0857.55011) Full Text: DOI Numdam EuDML
Shumyatskij, P. On periodic soluble groups and the fixed point groups of operators. (English) Zbl 0795.20015 Commun. Algebra 20, No. 10, 2815-2820 (1992). Reviewer: D.J.S.Robinson (Urbana) MSC: 20F16 20F50 20E36 20F28 PDFBibTeX XMLCite \textit{P. Shumyatskij}, Commun. Algebra 20, No. 10, 2815--2820 (1992; Zbl 0795.20015) Full Text: DOI
Carlson, Jon F. Cohomology and modules over group algebras. (English) Zbl 0762.20021 Proc. Int. Congr. Math., Kyoto/Japan 1990, Vol. I, 317-324 (1991). Reviewer: O.Talelli (Athens) MSC: 20J06 20C05 16E40 PDFBibTeX XMLCite \textit{J. F. Carlson}, in: Proceedings of the international congress of mathematicians (ICM), August 21--29, 1990, Kyoto, Japan. Volume I. Tokyo etc.: Springer-Verlag. 317--324 (1991; Zbl 0762.20021)