Edit Profile (opens in new tab) Mason, Alexander W. Co-Author Distance Author ID: mason.a-w Published as: Mason, A. W. Homepage: https://www.gla.ac.uk/schools/mathematicsstatistics/staff/alexandermason/ External Links: MGP · dblp Documents Indexed: 57 Publications since 1969, including 2 Additional arXiv Preprints Reviewing Activity: 110 Reviews Co-Authors: 11 Co-Authors with 24 Joint Publications 227 Co-Co-Authors all top 5 Co-Authors 33 single-authored 10 Schweizer, Andreas 4 Odoni, R. W. K. 3 Stothers, W. Wilson 2 Pride, Stephen James 2 Sury, Balasubramanian 1 Dickson, N. K. 1 Liu, Gaku 1 Majeed, Abdul 1 Premet, Alexander A. 1 Scarth, R. M. 1 Zalesskii, Pavel all top 5 Serials 5 Communications in Algebra 4 Proceedings of the Royal Society of Edinburgh. Section A. Mathematics 3 Mathematical Proceedings of the Cambridge Philosophical Society 3 Glasgow Mathematical Journal 3 Journal of the London Mathematical Society. Second Series 3 Journal of Pure and Applied Algebra 3 Proceedings of the American Mathematical Society 3 Proceedings of the Edinburgh Mathematical Society. Series II 2 Israel Journal of Mathematics 2 Archiv der Mathematik 2 Bulletin of the London Mathematical Society 2 Canadian Mathematical Bulletin 2 Journal of Algebra 2 Journal für die Reine und Angewandte Mathematik 2 Mathematische Zeitschrift 2 Proceedings of the London Mathematical Society. Third Series 2 Journal of Group Theory 1 Illinois Journal of Mathematics 1 Inventiones Mathematicae 1 Mathematische Annalen 1 Pacific Journal of Mathematics 1 The Quarterly Journal of Mathematics. Oxford Second Series 1 Transactions of the American Mathematical Society 1 International Journal of Algebra and Computation 1 Proceedings of the Royal Irish Academy. Section A, Mathematical and Physical Sciences 1 The Ramanujan Journal 1 Groups, Geometry, and Dynamics all top 5 Fields 53 Group theory and generalizations (20-XX) 27 Number theory (11-XX) 4 Commutative algebra (13-XX) 4 Category theory; homological algebra (18-XX) 3 Algebraic geometry (14-XX) 2 Topological groups, Lie groups (22-XX) 1 Combinatorics (05-XX) 1 \(K\)-theory (19-XX) 1 Functions of a complex variable (30-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH Open 46 Publications have been cited 273 times in 101 Documents Cited by ▼ Year ▼ On subgroups of GL(n,A) which are generated by commutators. Zbl 0278.20045 Mason, A. W.; Stothers, W. W. 32 1974 On subgroups of GL(n,A) which are generated by commutators. II. Zbl 0438.20034 Mason, A. W. 21 1981 A further note on subgroups of GL(n,A) which are generated by commutators. Zbl 0458.20046 Mason, A. W. 17 1981 Anomalous normal subgroups of \(SL_ 2(K[x])\). Zbl 0578.20037 Mason, A. W. 14 1985 A note on subgroups of GL(n,A) which are generated by commutators. Zbl 0319.20060 Mason, A. W. 13 1975 Free quotients of congruence subgroups of \(SL_ 2\) over a Dedekind ring of arithmetic type contained in a function field. Zbl 0619.20030 Mason, A. W. 12 1987 Free quotients of congruence subgroups of \(SL_ 2\) over a coordinate ring. Zbl 0619.20031 Mason, A. W. 11 1988 Serre’s generalization of Nagao’s theorem: an elementary approach. Zbl 0964.20027 Mason, A. W. 10 2001 On \(GL_ 2\) of a local ring in which 2 is not a unit. Zbl 0589.20032 Mason, A. W. 8 1987 Congruence hulls in \(SL_ n\). Zbl 0791.20054 Mason, A. W. 8 1993 Non-standard, normal subgroups and non-normal, standard subgroups of the modular group. Zbl 0632.20032 Mason, A. W. 8 1989 The generalization of Nagao’s theorem to other subrings of the rational function field. Zbl 1036.20046 Mason, A. W. 8 2003 Lattice subgroups of free congruence groups. Zbl 0185.06401 Mason, A. W. 8 1969 Standard subgroups of \(GL_ 2(A)\). Zbl 0608.20034 Mason, A. W. 7 1987 The minimum index of a non-congruence subgroup of \(\text{SL}_2\) over an arithmetic domain. Zbl 1020.20033 Mason, A. W.; Schweizer, Andreas 6 2003 The minimum index of a non-congruence subgroup of \(\text{SL}_2\) over an arithmetic domain. II: The rank zero cases. Zbl 1167.20329 Mason, A. W.; Schweizer, Andreas 6 2005 On \(GL_ 2\) of a local ring in which 2 is not a unit. II. Zbl 0663.20048 Mason, A. W. 5 1989 Lattice subgroups of normal subgroups of genus zero of the modular group. Zbl 0242.20054 Mason, A. W. 5 1972 Quotients of the congruence kernels of \(\text{SL}_ 2\) over arithmetic Dedekind domains. Zbl 0836.20069 Mason, A. W. 4 1995 Groups generated by elements with rational fixed points. Zbl 0874.20036 Mason, A. W. 4 1997 Anomalous normal subgroups of the modular group. Zbl 0522.20032 Mason, A. W. 4 1983 Non-standard automorphisms and non-congruence subgroups of \(\mathrm{SL}_{2}\) over Dedekind domains contained in function fields. Zbl 1114.11035 Mason, A. W.; Schweizer, Andreas 4 2006 The stabilizers in a Drinfeld modular group of the vertices of its Bruhat-Tits tree: an elementary approach. Zbl 1288.20034 Mason, A. W.; Schweizer, Andreas 4 2013 Normal subgroups of prescribed order and zero level of the modular group and related groups. Zbl 0677.20030 Mason, A. W.; Pride, S. J. 4 1990 Normal subgroups of \(SL_ 2(k[t])\) with or without free quotients. Zbl 0776.20014 Mason, A. W. 4 1992 The congruence kernel of an arithmetic lattice in a rank one algebraic group over a local field. Zbl 1162.20031 Mason, A. W.; Premet, A.; Sury, B.; Zalesskii, P. A. 4 2008 Non-normal, standard subgroups of the Bianchi groups. Zbl 0844.20030 Mason, A. W.; Odoni, R. W. K. 3 1996 Elliptic points of the Drinfeld modular groups. Zbl 1326.11014 Mason, A. W.; Schweizer, Andreas 3 2015 On non-normal subgroups of \(GL_ n(A)\) which are normalized by elementary matrices. Zbl 0531.20026 Mason, A. W. 3 1984 Solvable-by-finite subgroups of GL(2,F). Zbl 0372.20029 Majeed, Abdul; Mason, A. W. 3 1978 Almost all Bianchi groups have free, non-cyclic quotients. Zbl 0758.20009 Mason, A. W.; Odoni, R. W. K.; Stothers, W. W. 3 1992 The order and level of a subgroup of \(GL_ 2\) over a Dedekind ring of arithmetic type. Zbl 0735.20025 Mason, A. W. 3 1991 Nonrational genus zero function fields and the Bruhat-Tits tree. Zbl 1239.11050 Mason, A. W.; Schweizer, Andreas 3 2009 On non-congruence subgroups of the analogue of the modular group in characteristic \(p\). Zbl 1037.20052 Mason, A. W. 2 2003 Free quotients of congruence subgroups of Bianchi groups. Zbl 0734.20021 Mason, A. W. 2 1992 Free quotients of subgroups of the Bianchi groups whose kernels contain many elementary matrices. Zbl 0813.20054 Mason, A. W.; Odoni, R. W. K. 2 1994 Unipotent matrices, modulo elementary matrices, in \(\text{SL}_2\) over a coordinate ring. Zbl 0914.20045 Mason, A. W. 2 1998 Subnormal subgroups of \(E_ n(R)\) have no free, non-abelian quotients, when n\(\geq 3\). Zbl 0718.20024 Mason, A. W. 2 1991 Remarks on a theorem of L. Greenberg on the modular group. Zbl 0362.20018 Mason, A. W.; Stothers, W. W. 2 1978 The cusp amplitudes and quasi-level of a congruence subgroup of \(\mathrm{SL}_{2}\) over any Dedekind domain. Zbl 1272.11054 Mason, A. W.; Schweizer, Andreas 2 2012 On maximal non-parabolic normal subgroups of the modular group. Zbl 0388.20038 Mason, A. W.; Dickson, N. K. 2 1979 On the generators of elementary subgroups of general linear groups. Zbl 0846.20054 Mason, A. W. 1 1996 Stabilizers of edges in general linear groups acting on trees. Zbl 0981.20041 Mason, A. W. 1 2001 Ideal class groups of Dedekind domains contained in function fields. Zbl 0997.11104 Mason, A. W.; Odoni, R. W. K. 1 1997 Free quotients of congruence subgroups of the Serre groups and unipotent matrices. Zbl 0922.20053 Mason, A. W. 1 1999 On a theorem by Leon Greenberg. Zbl 0182.35803 Mason, A. W. 1 1969 Elliptic points of the Drinfeld modular groups. Zbl 1326.11014 Mason, A. W.; Schweizer, Andreas 3 2015 The stabilizers in a Drinfeld modular group of the vertices of its Bruhat-Tits tree: an elementary approach. Zbl 1288.20034 Mason, A. W.; Schweizer, Andreas 4 2013 The cusp amplitudes and quasi-level of a congruence subgroup of \(\mathrm{SL}_{2}\) over any Dedekind domain. Zbl 1272.11054 Mason, A. W.; Schweizer, Andreas 2 2012 Nonrational genus zero function fields and the Bruhat-Tits tree. Zbl 1239.11050 Mason, A. W.; Schweizer, Andreas 3 2009 The congruence kernel of an arithmetic lattice in a rank one algebraic group over a local field. Zbl 1162.20031 Mason, A. W.; Premet, A.; Sury, B.; Zalesskii, P. A. 4 2008 Non-standard automorphisms and non-congruence subgroups of \(\mathrm{SL}_{2}\) over Dedekind domains contained in function fields. Zbl 1114.11035 Mason, A. W.; Schweizer, Andreas 4 2006 The minimum index of a non-congruence subgroup of \(\text{SL}_2\) over an arithmetic domain. II: The rank zero cases. Zbl 1167.20329 Mason, A. W.; Schweizer, Andreas 6 2005 The generalization of Nagao’s theorem to other subrings of the rational function field. Zbl 1036.20046 Mason, A. W. 8 2003 The minimum index of a non-congruence subgroup of \(\text{SL}_2\) over an arithmetic domain. Zbl 1020.20033 Mason, A. W.; Schweizer, Andreas 6 2003 On non-congruence subgroups of the analogue of the modular group in characteristic \(p\). Zbl 1037.20052 Mason, A. W. 2 2003 Serre’s generalization of Nagao’s theorem: an elementary approach. Zbl 0964.20027 Mason, A. W. 10 2001 Stabilizers of edges in general linear groups acting on trees. Zbl 0981.20041 Mason, A. W. 1 2001 Free quotients of congruence subgroups of the Serre groups and unipotent matrices. Zbl 0922.20053 Mason, A. W. 1 1999 Unipotent matrices, modulo elementary matrices, in \(\text{SL}_2\) over a coordinate ring. Zbl 0914.20045 Mason, A. W. 2 1998 Groups generated by elements with rational fixed points. Zbl 0874.20036 Mason, A. W. 4 1997 Ideal class groups of Dedekind domains contained in function fields. Zbl 0997.11104 Mason, A. W.; Odoni, R. W. K. 1 1997 Non-normal, standard subgroups of the Bianchi groups. Zbl 0844.20030 Mason, A. W.; Odoni, R. W. K. 3 1996 On the generators of elementary subgroups of general linear groups. Zbl 0846.20054 Mason, A. W. 1 1996 Quotients of the congruence kernels of \(\text{SL}_ 2\) over arithmetic Dedekind domains. Zbl 0836.20069 Mason, A. W. 4 1995 Free quotients of subgroups of the Bianchi groups whose kernels contain many elementary matrices. Zbl 0813.20054 Mason, A. W.; Odoni, R. W. K. 2 1994 Congruence hulls in \(SL_ n\). Zbl 0791.20054 Mason, A. W. 8 1993 Normal subgroups of \(SL_ 2(k[t])\) with or without free quotients. Zbl 0776.20014 Mason, A. W. 4 1992 Almost all Bianchi groups have free, non-cyclic quotients. Zbl 0758.20009 Mason, A. W.; Odoni, R. W. K.; Stothers, W. W. 3 1992 Free quotients of congruence subgroups of Bianchi groups. Zbl 0734.20021 Mason, A. W. 2 1992 The order and level of a subgroup of \(GL_ 2\) over a Dedekind ring of arithmetic type. Zbl 0735.20025 Mason, A. W. 3 1991 Subnormal subgroups of \(E_ n(R)\) have no free, non-abelian quotients, when n\(\geq 3\). Zbl 0718.20024 Mason, A. W. 2 1991 Normal subgroups of prescribed order and zero level of the modular group and related groups. Zbl 0677.20030 Mason, A. W.; Pride, S. J. 4 1990 Non-standard, normal subgroups and non-normal, standard subgroups of the modular group. Zbl 0632.20032 Mason, A. W. 8 1989 On \(GL_ 2\) of a local ring in which 2 is not a unit. II. Zbl 0663.20048 Mason, A. W. 5 1989 Free quotients of congruence subgroups of \(SL_ 2\) over a coordinate ring. Zbl 0619.20031 Mason, A. W. 11 1988 Free quotients of congruence subgroups of \(SL_ 2\) over a Dedekind ring of arithmetic type contained in a function field. Zbl 0619.20030 Mason, A. W. 12 1987 On \(GL_ 2\) of a local ring in which 2 is not a unit. Zbl 0589.20032 Mason, A. W. 8 1987 Standard subgroups of \(GL_ 2(A)\). Zbl 0608.20034 Mason, A. W. 7 1987 Anomalous normal subgroups of \(SL_ 2(K[x])\). Zbl 0578.20037 Mason, A. W. 14 1985 On non-normal subgroups of \(GL_ n(A)\) which are normalized by elementary matrices. Zbl 0531.20026 Mason, A. W. 3 1984 Anomalous normal subgroups of the modular group. Zbl 0522.20032 Mason, A. W. 4 1983 On subgroups of GL(n,A) which are generated by commutators. II. Zbl 0438.20034 Mason, A. W. 21 1981 A further note on subgroups of GL(n,A) which are generated by commutators. Zbl 0458.20046 Mason, A. W. 17 1981 On maximal non-parabolic normal subgroups of the modular group. Zbl 0388.20038 Mason, A. W.; Dickson, N. K. 2 1979 Solvable-by-finite subgroups of GL(2,F). Zbl 0372.20029 Majeed, Abdul; Mason, A. W. 3 1978 Remarks on a theorem of L. Greenberg on the modular group. Zbl 0362.20018 Mason, A. W.; Stothers, W. W. 2 1978 A note on subgroups of GL(n,A) which are generated by commutators. Zbl 0319.20060 Mason, A. W. 13 1975 On subgroups of GL(n,A) which are generated by commutators. Zbl 0278.20045 Mason, A. W.; Stothers, W. W. 32 1974 Lattice subgroups of normal subgroups of genus zero of the modular group. Zbl 0242.20054 Mason, A. W. 5 1972 Lattice subgroups of free congruence groups. Zbl 0185.06401 Mason, A. W. 8 1969 On a theorem by Leon Greenberg. Zbl 0182.35803 Mason, A. W. 1 1969 all cited Publications top 5 cited Publications all top 5 Cited by 65 Authors 32 Mason, Alexander W. 20 Vavilov, Nikolaĭ Aleksandrovich 15 Zhang, Zuhong 10 Hazrat, Roozbeh 8 Stepanov, Alexeĭ Vladimirovich 7 Schweizer, Andreas 6 Vaserstein, Leonid N. 5 Arenas-Carmona, Luis 5 Bravo, Claudio 3 Menal, Pere 3 Stothers, W. Wilson 3 Zalesskii, Pavel 2 Brenner, Joël Lee 2 Lyndon, Roger C. 2 Merzlyakov, Yu. I. 2 Odoni, R. W. K. 2 Rosenberger, Gerhard 1 Apte, Himanee 1 Bak, Anthony 1 Bardini, Carla 1 Bautista-Ancona, Victor 1 Brochero Martínez, Fabio Enrique 1 Cummins, Chris J. 1 Di Martino, Lino 1 Diaz-Vargas, Javier 1 Dickson, N. K. 1 Durnev, Valeriĭ Georgievich 1 Fine, Benjamin L. 1 Ganter, Nora 1 Giraldo Vergara, Carmen Rosa 1 Grunewald, Fritz J. 1 Haghighi, N. S. 1 Holt, Derek F. 1 Jones, Gareth A. 1 Jones, Josephine Mary 1 Kızılaslan, Gonca 1 Krstic, Sava A. 1 Kulkarni, Ravi S. 1 Lara Rodríguez, José Alejandro 1 Laures, Gerd 1 Levin, Frank 1 Loisel, Benoît 1 Lucchini Arteche, Giancarlo 1 McCool, James 1 Parson, L. Alayne 1 Pellarin, Federico 1 Pilkington, Anne 1 Prasad, Gopal 1 Premet, Alexander A. 1 Rapinchuk, Andrei S. 1 Rees, Sarah 1 Sanchini, Paolo 1 Schwermer, Joachim 1 Şengün, Mehmet Haluk 1 Shvartsman, O. V. 1 Słowik, Roksana 1 Sury, Balasubramanian 1 Tamburini, Maria Chiara 1 Tretkoff, Carol 1 Vinberg, Èrnest Borisovich 1 Weigel, Thomas S. 1 Zalesski, Alexandre Efimovich 1 Zarghani, Saeid Hamzeh 1 Zetkina, Alena Igor’evna 1 Zetkina, Oksana Valer’evna all top 5 Cited in 40 Serials 10 Journal of Algebra 9 Communications in Algebra 9 Journal of Mathematical Sciences (New York) 7 Journal of Pure and Applied Algebra 6 Israel Journal of Mathematics 5 Proceedings of the American Mathematical Society 5 Proceedings of the Edinburgh Mathematical Society. Series II 4 Journal of Soviet Mathematics 3 Glasgow Mathematical Journal 3 Mathematische Zeitschrift 2 Mathematical Proceedings of the Cambridge Philosophical Society 2 Archiv der Mathematik 2 Journal of Number Theory 2 Mathematische Annalen 2 Transactions of the American Mathematical Society 2 Linear Algebra and its Applications 2 Proceedings of the Royal Society of Edinburgh. Section A. Mathematics 2 Vestnik St. Petersburg University. Mathematics 2 International Journal of Number Theory 1 Rocky Mountain Journal of Mathematics 1 Algebra and Logic 1 Bulletin of the London Mathematical Society 1 Compositio Mathematica 1 Inventiones Mathematicae 1 Journal für die Reine und Angewandte Mathematik 1 Manuscripta Mathematica 1 Rendiconti del Seminario Matemàtico e Fisico di Milano 1 European Journal of Combinatorics 1 Chinese Annals of Mathematics. Series B 1 \(K\)-Theory 1 International Journal of Algebra and Computation 1 Experimental Mathematics 1 Journal de Théorie des Nombres de Bordeaux 1 St. Petersburg Mathematical Journal 1 Transformation Groups 1 Journal of Group Theory 1 Central European Journal of Mathematics 1 Chebyshevskiĭ Sbornik 1 Proceedings of the Steklov Institute of Mathematics 1 Groups, Geometry, and Dynamics all top 5 Cited in 17 Fields 92 Group theory and generalizations (20-XX) 32 Number theory (11-XX) 12 \(K\)-theory (19-XX) 8 Algebraic geometry (14-XX) 4 Commutative algebra (13-XX) 4 Category theory; homological algebra (18-XX) 4 Functions of a complex variable (30-XX) 3 Associative rings and algebras (16-XX) 2 Linear and multilinear algebra; matrix theory (15-XX) 2 Nonassociative rings and algebras (17-XX) 2 Functional analysis (46-XX) 1 Combinatorics (05-XX) 1 Topological groups, Lie groups (22-XX) 1 Several complex variables and analytic spaces (32-XX) 1 Algebraic topology (55-XX) 1 Manifolds and cell complexes (57-XX) 1 Information and communication theory, circuits (94-XX) Citations by Year