1

Principal Congruence Subgroups of the Hecke Groups

Mong-Lung Lang, Chong-Hai Lim, Ser-Peow Tan
Journal:
Journal of Number Theory
Year:
2000
Language:
english
File:
PDF, 126 KB
english, 2000
3

10.1090/S0002-9939-00-05677-X

Lang, Mong-Lung, Tan, Ser-Peow
Journal:
Proceedings of the American Mathematical Society
Year:
2000
Language:
english
File:
PDF, 169 KB
english, 2000
5

Independent generators for congruence subgroups of Hecke groups

Mong-Lung Lang, Chong-Hai Lim, Ser-Peow Tan
Journal:
Mathematische Zeitschrift
Year:
1995
Language:
english
File:
PDF, 1010 KB
english, 1995
6

Subgroups of the hecke groups with small index

Lang, Mong-Lung, Lim, Chong-Hai, Tan, Ser-Peow
Journal:
Linear and Multilinear Algebra
Year:
1993
Language:
english
File:
PDF, 176 KB
english, 1993
8

Research Problem

Chan, Shih-Ping, Lang, Mong-Lung, Lim, Chong-Hai, Tan, Ser-Peow
Journal:
Linear and Multilinear Algebra
Year:
1993
Language:
english
File:
PDF, 236 KB
english, 1993
9

10.1090/s0002-9939-99-05154-0

Lang, Mong-Lung, Tan, Ser-Peow
Journal:
Proceedings of the American Mathematical Society
Year:
1999
Language:
english
File:
PDF, 225 KB
english, 1999