Found 174 Documents (Results 1–100)
Heat properties for groups. (English) Zbl 07905066
Simplicity and tracial weights on non-unital reduced crossed products. (English) Zbl 07852713
Reviewer: Akram Yousofzadeh (Isfahan)
On the Connes-Kasparov isomorphism. II: The Vogan classification of essential components in the tempered dual. (English) Zbl 1536.22013
On the Connes-Kasparov isomorphism. I: The reduced \(\mathrm{C}^*\)-algebra of a real reductive group and the \(K\)-theory of the tempered dual. (English) Zbl 1542.22008
Reviewer: María Vicenta Ferrer González (Castelló)
The set of 2-generated \(C^*\)-simple relatively free groups has the cardinality of the continuum. (The set of 2-genereted \(C^*\)-simple relatively free groups has the cardinality of the continuum.) (English) Zbl 1537.20074
\(C^*\)-simplicity [after Breuillard, Haagerup, Kalantar, Kennedy and Ozawa]. (English) Zbl 1480.46076
Séminaire Bourbaki. Volume 2018/2019, Exposés 1151–1165. Avec table par noms d’auteurs de 1948 à 2018/19. Paris: Société Mathématique de France (SMF). Astérisque 422, 225-252, Exp. No. 1156 (2020).
\(C^*\)-simplicity of HNN extensions and groups acting on trees. (\(C^*\)-simplicité d’extensions HNN et de groupes agissant sur des arbres.) (English. French summary) Zbl 1491.22002
An intrinsic characterization of C*-simplicity. (English) Zbl 1482.46075
Reviewer: Lauren Ruth (New York)
Ideal structure and pure infiniteness of ample groupoid \(C^{\ast}\)-algebras. (English) Zbl 1444.46046
Comparison and pure infiniteness of crossed products. (English) Zbl 1428.37009
Reviewer: Vladimir M. Manuilov (Moskva)
On the analogy between real reductive groups and Cartan motion groups: a proof of the Connes-Kasparov isomorphism. (English) Zbl 1430.46052
Reviewer: Takahiro Sudo (Nishihara)
Kirchberg-Wassermann exactness vs exactness: reduction to the unimodular totally disconnected case. (English) Zbl 1416.46055
\(K\)-homological finiteness and hyperbolic groups. (English) Zbl 1415.46048
Reviewer: Christopher Wulff (Göttingen)
Weak\(^*\) fixed point property of reduced Fourier-Stieltjes algebra and generalization of Baggett’s theorem. (English) Zbl 1395.46040
Reviewer: Chi-Keung Ng (Tianjin)
On the \(K\)-theory of the reduced \(C^*\)-algebras of \(\mathrm{GL}(n,\mathbb {R})\) and \(\mathrm{GL}(n,\mathbb {C})\). (English) Zbl 1403.19005
Bebiano, Natália (ed.), Applied and computational matrix analysis. MAT-TRIAD, Coimbra, Portugal, September 7–11, 2015. Selected, revised contributions. Cham: Springer (ISBN 978-3-319-49982-6/hbk; 978-3-319-49984-0/ebook). Springer Proceedings in Mathematics & Statistics 192, 93-103 (2017).
Reviewer: Vladimir M. Manuilov (Moskva)
Traces on reduced group \(C^{*}\)-algebras. (English) Zbl 1382.22010
Reviewer: Mohammad Sal Moslehian (Mashhad)
Langlands functorality in \(K\)-theory for \(C^\ast\)-algebras. I: Base change. (English) Zbl 1378.22006
Reviewer: Do Ngoc Diep (Hanoi)
\(C^*\)-simplicity and the amenable radical. (English) Zbl 1383.46043
Reviewer: Akram Yousofzadeh (Isfahan)
Harmonic cocycles, von Neumann algebras, and irreducible affine isometric actions. (English) Zbl 1373.22012
Property RD and the classification of traces on reduced group \(C^\ast\)-algebras of hyperbolic groups. (English) Zbl 1383.46041
Boundaries of reduced \(C^\ast\)-algebras of discrete groups. (English) Zbl 1371.46044
Reviewer: Fatameh Akhtari (Isfahan)
Closed convex hulls of unitary orbits in \({C^{\ast}_{r}(\mathbb{F}_{\infty})}\). (English) Zbl 1367.46043
Parabolic induction and restriction via \(C^{\ast}\)-algebras and Hilbert \(C^{\ast}\)-modules. (English) Zbl 1346.22005
Reviewer: Vladimir M. Manuilov (Moskva)
The \(K\)-theory of some reduced inverse semigroup \(C^*\)-algebras. (English) Zbl 1339.46067
Reviewer: Vladimir M. Manuilov (Moskva)
Finite part of operator \(K\)-theory for groups with rapid decay. (English) Zbl 1338.19001
Reviewer: Sergey Ludkovsky (Moskva)
\(C^*\)-simplicity for groups with non-elementary convergence group actions. (English) Zbl 1286.22006
Reviewer: Laurent Bartholdi (Göttingen)
Rational equivariant \(K\)-homology of low dimensional groups. (English) Zbl 1325.19006
Cortiñas, Guillermo (ed.), Topics in noncommutative geometry. Third Luis Santaló winter school – CIMPA research school on noncommutative geometry, Universidad de Buenos Aires, Buenos Aires, Argentina, July 26–August 6, 2010. Providence, RI: American Mathematical Society (AMS) (ISBN 978-0-8218-6864-5/pbk). Clay Mathematics Proceedings 16, 131-163 (2012).
Reviewer: Do Ngoc Diep (Hanoi)
On reduced amalgamated free products of \(C^\ast\)-algebras and the MF property. (English) Zbl 1284.46045
Reviewer: Pierre Clare (University Park)
A note on weak amenability for free products of discrete quantum groups. (English. French summary) Zbl 1252.46058
Preprojective algebras and \(c\)-sortable words. (English) Zbl 1246.13033
Reviewer: Marek Golasiński (Toruń)
On the structure of some reduced amalgamated free product \(C^*\)-algebras. (English) Zbl 1239.46040
Crossed products by \(\mathbb Z\) of algebras arising from reduced free group \(C^*\)-algebras. (English) Zbl 1263.46049
Reviewer: Wenming Wu (Chongqing)
A characterization of the image of the Baum-Connes map. (English) Zbl 1216.19008
Blanchard, Etienne (ed.) et al., Quanta of maths. Conference on non commutative geometry in honor of Alain Connes, Paris, France, March 29–April 6, 2007. Providence, RI: American Mathematical Society (AMS); Cambridge, MA: Clay Mathematics Institute (ISBN 978-0-8218-5203-3/pbk). Clay Mathematics Proceedings 11, 649-657 (2010).
Free groups and reduced 1-cohomology of unitary representations. (English) Zbl 1223.22005
Blanchard, Etienne (ed.) et al., Quanta of maths. Conference on non commutative geometry in honor of Alain Connes, Paris, France, March 29–April 6, 2007. Providence, RI: American Mathematical Society (AMS); Cambridge, MA: Clay Mathematics Institute (ISBN 978-0-8218-5203-3/pbk). Clay Mathematics Proceedings 11, 459-463 (2010).
Reviewer: Pekka Salmi (Oulu)
Quasidiagonal extensions of the reduced group \(C^*\)-algebras of certain discrete groups. (English) Zbl 1203.46036
Ball, Joseph A. (ed.) et al., Topics in operator theory. Volume 1: Operators, matrices and analytic functions. Proceedings of the 19th international workshop on operator theory and applications (IWOTA), College of William and Mary, Williamsburg, VA, USA, July 22–26, 2008. A tribute to Israel Gohberg on the occasion of his 80th birthday. Basel: Birkhäuser (ISBN 978-3-0346-0157-3/hbk; 978-3-0346-0163-4/set; 978-3-0346-0158-0/ebook). Operator Theory: Advances and Applications 202, 315-319 (2010).
\(R\)-groups and geometric structure in the representation theory of \(\text{SL}(N)\). (English) Zbl 1190.33023
Reviewer: Khristo N. Boyadzhiev (Ada)
Extensions of the reduced group \(C^{*}\)-algebra of a free product of amenable groups. (English) Zbl 1194.46076
Reviewer: Vladimir M. Manuilov (Moskva)
Equivariant \(K\)-theory of finite dimensional real vector spaces. (English) Zbl 1187.19005
Reviewer: Ruben J. Sanchez-Garcia (Düsseldorf)
Explicit Plancherel theorems for \({\mathcal H}(q_1,q_2)\) and \(\text{SL}_2(F)\). (English) Zbl 1168.22010
Reviewer: Yumiko Hironaka (Tokyo)
\(C^*\)-estimates for averaging sums of elements in the Thompson group \(F\). (English) Zbl 1212.46090
Boca, Florin-Petre (ed.) et al., Perspectives in operator algebras and mathematical physics. Proceedings of the 3rd conference on operator algebras and mathematical physics, Bucharest, Romania, August 10–17, 2005. Bucharest: Theta (ISBN 978-973-87899-1-3). Theta Series in Advanced Mathematics 8, 41-50 (2008).
Reviewer: Salvador Hernandez (Castellon)
Asymptotic representations of the reduced C\(^*\)-algebra of a free group: an example. (English) Zbl 1159.22002
Reviewer: Aidan Sims (Newcastle)
Galois-fixed points and \(K\)-theory for \(GL(n)\). (English) Zbl 1153.22019
Bastos, Maria Amélia (ed.) et al., Operator algebras, operator theory and applications. Selected papers of the international summer school and workshop, WOAT 2006, Lisbon, Portugal, September 1–5, 2006. Basel: Birkhäuser (ISBN 978-3-7643-8683-2/hbk). Operator Theory: Advances and Applications 181, 309-320 (2008).
Reviewer: Anatoly N. Kochubei (Kyïv)
All extensions of \(C^*_r(\mathbb F_n)\) are semi-invertible. (English) Zbl 1151.46040
Reviewer: Mohammad Sal Moslehian (Mashhad)
An invitation to quantum groups and duality. From Hopf algebras to multiplicative unitaries and beyond. (English) Zbl 1162.46001
EMS Textbooks in Mathematics. Zürich: European Mathematical Society (ISBN 978-3-03719-043-2/hbk). xx, 407 p. (2008).
Reviewer: Jörg Feldvoss (Mobile)
On Ozawa kernels. (English) Zbl 1190.46023
On simplicity of reduced \(C^*\)-algebras of groups. (English) Zbl 1123.22004
Reviewer: Bachir Bekka (Rennes)
Relatively hyperbolic groups are \(C^*\)-simple. (English) Zbl 1115.20034
Reviewer: Athanase Papadopoulos (Strasbourg)
Torus actions and integrable systems. (English) Zbl 1329.37054
Bolsinov, A. V. et al., Topological methods in the theory of integrable systems. Cambridge: Cambridge Scientific Publishers (ISBN 978-1-904868-42-2/hbk). 289-328 (2006).
Exactness of free and amenable groups by the construction of Ozawa kernels. (English) Zbl 1153.20310
Pseudo-multiplicative unitaries and pseudo-Kac systems on \(C^*\)-modules. (English) Zbl 1091.46513
Münster: Univ. Münster, Fachbereich Mathematik und Informatik, Mathematisch-Naturwissenschaftliche Fakultät (Dissertation). xii, 166 p. (2005).
Reviewer: Mohammad Sal Moslehian (Leeds)
Relatively hyperbolic groups with rapid decay property. (English) Zbl 1077.22006
Reviewer: Elena T. Toneva (Cheney)
\(C^{*}\)-algebras of some semigroups. (English) Zbl 1333.46053
MSC:
46L05
Mapping class groups and outer automorphism groups of free groups are \(C^{*}\)-simple. (English) Zbl 1064.46052
The Connes-Kasparov conjecture for almost connected groups and for liner \(p\)-adic groups. (English) Zbl 1048.46057
Reviewer: V. M. Manuilov (Moskva)
Simplicity of the reduced \(C^{\ast}\)-algebras of certain Coxeter groups. (English) Zbl 1035.43006
Reviewer: Yuri I. Karlovich (Cuernavaca)
Reduced \(C ^{*}\)-algebra of the \(p\)-adic group \(GL(n)\). II. (English) Zbl 1014.22014
Reviewer: V.M.Deundjak (Rostov-na-Donu)
Mapping the homology of a group to the \(K\)-theory of its \(C^*\)-algebra. (English) Zbl 1021.19003
Reviewer: Liliana Răileanu (Iaşi)
\(K\)-theory of the full \(C^*\)-algebra of \(SL_{3}(\mathbb C)\). (La \(K\)-théorie de la \(C^*\)-algèbre pleine de \(SL_{3}(\mathbb C)\).) (French) Zbl 1030.46096
Reviewer: V. M. Manuilov (Moskva)
The reduced \(C^*\)-algebra of \(N^+\) and its quotient algebra. (English) Zbl 1006.46037
Proceedings of the 31st Iranian mathematics conference, Tehran, Islamic Republic of Iran, August 27-30, 2000. Tehran: University of Tehran, 195-203 (2000).
Equivariance and imprimivity for discrete Hopf \(C^*\)-coactions. (English) Zbl 0980.46048
Reviewer: Andrej Bulinski (Moskva)
Groups with simple reduced \(C^*\)-algebras. (English) Zbl 0966.46032
Reviewer: Khristo N.Boyadzhiev (Ada)
MSC:
46L05
Type \(II_{\infty}\) factors generated by purely infinite simple \(C^*\)-algebras associated with free groups. (English) Zbl 0940.46036
Reviewer: Zvonko Čerin (Zagreb)
The \(K\)- and \(L\)-theory of certain discrete groups. (English) Zbl 0936.19005
Schriftenreihe des Mathematischen Instituts der Universität Münster. 3. Serie. 24. Münster: Univ. Münster, Fachbereich Mathematik und Informatik, 98 p. (1999).
Reviewer: Wolfgang Lück (Münster)
Induced coactions of discrete groups on \(C^*\)-algebras. (English) Zbl 0934.46066
Reviewer: Byung-Jay Kahng
\(K\)-theory for \(C^*\)-algebras of one-relator groups. (English) Zbl 0932.46063
Reviewer: Zvonko Čerin (Zagreb)
Morita equivalences between fixed point algebras and crossed products. (English) Zbl 0933.46065
Reviewer: N.Sankaran (Bangalore)
Idempotents in the \(C^*\)-algebras of free products of groups with amalgamation. (English) Zbl 1005.46025
Purely infinite simple \(C^*\)-algebras arising from reduced group \(C^*\)-algebras. (English) Zbl 0923.46057
Ge, Liming (ed.) et al., Operator algebras and operator theory. Proceedings of the international conference, Shanghai, China, July 4–9, 1997. Providence, RI: American Mathematical Society. Contemp. Math. 228, 365-389 (1998).
A proof of the Baum-Connes conjecture for reductive \(p\)-adic groups and for some discrete groups satisfying property \((T)\). (Une démonstration de la conjecture de Baum-Connes pour les groupes réductifs sur un corps \(p\)-adique et pour certains groupes discrets possédant la propriété \((T)\).) (French. Abridged English version) Zbl 0911.46042
Reviewer: V.M.Deundjak (Rostov-na-Donu)
A Bott periodicity theorem for infinite dimensional Euclidean space. (English) Zbl 0911.46040
Reviewer: Diep Do Ngoc (Hanoi)
The stable rank of some free product \(C^*\)-algebras. (English) Zbl 0905.46036
Reviewer: Sh.A.Ayupov (Tashkent)
Toeplitz algebras and infinite simple \(C^*\)-algebras associated with reduced group \(C^*\)-algebras. (English) Zbl 0905.46039
Stable rank of the reduced \(C^{*}\)-algebras of non-amenable Lie groups of type I. (English) Zbl 0888.46040
A characterization of the Leinert property. (English) Zbl 0889.22006
Reviewer: J.Wysoczański (Wrocław)
Amenability for Fell bundles. (English) Zbl 0881.46046
Reviewer: R.Exel (São Paulo)
Some remarks concerning the Baum-Connes conjecture. (English) Zbl 0886.46062
Reviewer: L.Maxim-Răileanu (Iaşi)
MSC:
46L80
The spectrum of a directed Cayley graph of a free group. (English) Zbl 0910.43011
Korányi, Adam (ed.), Harmonic functions on trees and buildings. Workshop on harmonic functions on graphs, New York, NY, October 30–November 3, 1995. Providence, RI: American Mathematical Society. Contemp. Math. 206, 173-174 (1997).
Reviewer: Yu.I.Karlovich (Lisboa)
Complete growth functions of hyperbolic groups. (English) Zbl 0880.20024
Reviewer: T.Nagnibeda (Genève)
The \(C^*\)-algebra of a quasi-representation. (La \(C^*\)-algèbre d’une quasi-représentation.) (French) Zbl 0884.46041
Infinite simple \(C^*\)-algebras and reduced cross products of abelian \(C^*\)-algebras and free groups. (English) Zbl 0889.46051
Filter Results by …
Document Type
- Journal Articles (149)
- Collection Articles (22)
- Books (3)
all
top 5
Author
- de la Harpe, Pierre (7)
- Plymen, Roger J. (7)
- Valette, Alain (6)
- Quigg, John C. (5)
- Bédos, Erik (4)
- Bekka, Mohammed el Bachir (4)
- Higson, Nigel (4)
- Kennedy, Matthew (4)
- Zhang, Shuang (4)
- Clare, Pierre (3)
- Echterhoff, Siegfried (3)
- Haagerup, Uffe Valentin (3)
- Lipacheva, Ekaterina Vladimirovna (3)
- Natsume, Toshikazu (3)
- Ng, Chi-Keung (3)
- Paschke, William Lindall (3)
- Robertson, Guyan (3)
- Rørdam, Mikael (3)
- Anderson, Joel (2)
- Bettaieb, Hela (2)
- Bryder, Rasmus Sylvester (2)
- Cohen, Joel M. (2)
- Conti, Roberto (2)
- Cowling, Michael G. (2)
- Dykema, Kenneth J. (2)
- Exel, Ruy (2)
- Gong, Sherry (2)
- Gumerov, Renat Nel’sonovich (2)
- Ivanov, Nikolay A. (2)
- Ji, Ronghui (2)
- Jolissaint, Paul (2)
- Kalantar, Mehrdad (2)
- Kaniuth, Eberhard (2)
- Lee, Tanyu (2)
- Mendes, Sergio (2)
- Ng, Ping Wong (2)
- Niţică, Viorel (2)
- Noskov, Guennadi A. (2)
- Omland, Tron Å. (2)
- Raum, Sven (2)
- Sánchez-García, Rubén J. (2)
- Seebach, Jonas Andersen (2)
- Song, Yanli (2)
- Sudo, Takahiro (2)
- Szymański, Wojciech (2)
- Thomsen, Klaus E. (2)
- Timmermann, Thomas (2)
- Voiculescu, Dan-Virgil (2)
- Watatani, Yasuo (2)
- Afgoustidis, Alexandre (1)
- Akemann, Charles A. (1)
- Amiot, Claire (1)
- Arias, Alvaro (1)
- Arzhantseva, Goulnara N. (1)
- Atabekyan, Varuzhan S. (1)
- Balogun, Bola O. (1)
- Béguin, Cédric (1)
- Blackadar, Bruce E. (1)
- Block, Jonathan L. (1)
- Boca, Florin-Petre (1)
- Bönicke, Christian (1)
- Brannan, Michael (1)
- Brenti, Francesco (1)
- Breuillard, Emmanuel (1)
- Bridson, Martin R. (1)
- Campbell, Sarah (1)
- Cave, Chris (1)
- Chabert, Jérôme (1)
- Chao, Kuok Fai (1)
- Chifan, Ionuţ (1)
- Combes, Francois (1)
- Contensou, Edouard (1)
- Crisp, Tyrone (1)
- Denizeau, Yves (1)
- Druţu, Cornelia (1)
- Dugas, Manfred H. (1)
- Duncan, John (1)
- Emerson, Heath (1)
- Enomoto, Masatoshi (1)
- Fendler, Gero (1)
- Figa-Talamanca, Alessandro (1)
- Freslon, Amaury (1)
- Green, Philip (1)
- Grigorchuk, Rostislav Ivanovich (1)
- Guentner, Erik Paul (1)
- Haskell, Peter (1)
- Hausen, Jutta (1)
- Itoh, Shigeru (1)
- Iyama, Osamu (1)
- Jang, Sunyoung (1)
- Jaudon, Ghislain (1)
- Jawdat, Jamila (1)
- Julg, Pierre (1)
- Kajiwara, Tsuyoshi (1)
- Kaliszewski, Steven Paul (1)
- Kasparov, Gennadi G. (1)
- Kim, San Og (1)
- Kishimoto, Akitaka (1)
- Kuklin, Anatoliy (1)
- Kutzko, Philip C. (1)
- and 67 more Authors
all
top 5
Serial
- J. Funct. Anal. (13)
- Proc. Am. Math. Soc. (9)
- Bull. Lond. Math. Soc. (7)
- J. Oper. Theory (7)
- C. R. Acad. Sci., Paris, Sér. I (5)
- Adv. Math. (4)
- Math. Scand. (4)
- Math. Proc. Camb. Philos. Soc. (3)
- Ill. J. Math. (3)
- Indiana Univ. Math. J. (3)
- Publ. Math., Inst. Hautes Étud. Sci. (3)
- J. Reine Angew. Math. (3)
- Math. Japon. (3)
- Trans. Am. Math. Soc. (3)
- \(K\)-Theory (3)
- J. Noncommut. Geom. (3)
- Commun. Math. Phys. (2)
- Houston J. Math. (2)
- Can. J. Math. (2)
- Can. Math. Bull. (2)
- Invent. Math. (2)
- J. Lond. Math. Soc., II. Ser. (2)
- Math. Ann. (2)
- Math. Z. (2)
- Pac. J. Math. (2)
- Proc. Lond. Math. Soc. (3) (2)
- Int. J. Math. (2)
- Int. Math. Res. Not. (2)
- Lobachevskii J. Math. (2)
- Münster J. Math. (2)
- Jpn. J. Math. (3) (2)
- Bull. Aust. Math. Soc. (1)
- Commun. Pure Appl. Math. (1)
- J. Math. Anal. Appl. (1)
- Rocky Mt. J. Math. (1)
- Algebra Logic (1)
- Ann. Inst. Fourier (1)
- Ann. Sci. Éc. Norm. Supér. (4) (1)
- Bull. Kyushu Inst. Technol., Math. Nat. Sci. (1)
- Colloq. Math. (1)
- Compos. Math. (1)
- Duke Math. J. (1)
- Integral Equations Oper. Theory (1)
- J. Korean Math. Soc. (1)
- J. Math. Soc. Japan (1)
- J. Number Theory (1)
- J. Pure Appl. Algebra (1)
- Manuscr. Math. (1)
- Mich. Math. J. (1)
- Proc. Edinb. Math. Soc., II. Ser. (1)
- Sib. Math. J. (1)
- Sib. Mat. Zh. (1)
- C. R. Math. Acad. Sci., Soc. R. Can. (1)
- Ergodic Theory Dyn. Syst. (1)
- Bull. Korean Math. Soc. (1)
- Geom. Funct. Anal. (1)
- J. Aust. Math. Soc., Ser. A (1)
- Proc. R. Soc. Edinb., Sect. A, Math. (1)
- Bull. Soc. Math. Belg., Sér. A (1)
- Expo. Math. (1)
- Algebras Groups Geom. (1)
- New York J. Math. (1)
- J. Fourier Anal. Appl. (1)
- Honam Math. J. (1)
- C. R. Acad. Sci., Paris, Sér. I, Math. (1)
- RIMS Kokyuroku (1)
- Algebr. Geom. Topol. (1)
- C. R., Math., Acad. Sci. Paris (1)
- Pure Appl. Math. Q. (1)
- Schriftenr. Math. Inst. Univ. Münster, 3. Ser. (1)
- J. Topol. Anal. (1)
- Sci. China, Math. (1)
- Ann. Funct. Anal. (1)
- Proc. Yerevan State Univ., Phys. Math. Sci. (1)
- EMS Textb. Math. (1)
all
top 5
Year of Publication
- 2024 (6)
- 2023 (2)
- 2022 (2)
- 2021 (2)
- 2020 (6)
- 2019 (3)
- 2018 (3)
- 2017 (8)
- 2016 (3)
- 2015 (3)
- 2014 (1)
- 2013 (1)
- 2012 (5)
- 2011 (3)
- 2010 (5)
- 2009 (2)
- 2008 (5)
- 2007 (4)
- 2006 (2)
- 2005 (2)
- 2004 (2)
- 2003 (2)
- 2002 (3)
- 2000 (4)
- 1999 (5)
- 1998 (5)
- 1997 (10)
- 1996 (6)
- 1995 (5)
- 1994 (2)
- 1993 (5)
- 1992 (4)
- 1991 (5)
- 1990 (9)
- 1989 (5)
- 1988 (6)
- 1987 (3)
- 1986 (6)
- 1985 (5)
- 1984 (3)
- 1983 (3)
- 1982 (1)
- 1981 (2)
- 1980 (2)
- 1979 (2)
- 1967 (1)
Software
- GAP (1)
