Finite groups with many values in a column of the character table

2018 ◽  
Vol 17 (10) ◽  
pp. 1850196
Author(s):  
Pham Huu Tiep ◽  
Hung P. Tong-Viet

In this paper, we classify all finite groups whose character tables have some column with pairwise distinct values.

2012 ◽  
Vol 12 (02) ◽  
pp. 1250150 ◽  
Author(s):  
JINSHAN ZHANG ◽  
ZHENCAI SHEN ◽  
SHULIN WU

The finite groups in which every irreducible character vanishes on at most three conjugacy classes were characterized [J. Group Theory13 (2010) 799–819]. Dually, we investigate the finite groups whose columns contain a small number of zeros in the character table.


1973 ◽  
Vol 25 (3) ◽  
pp. 486-494 ◽  
Author(s):  
William A. Simpson ◽  
J. Sutherland Frame

In this paper the character table of GL(3, q) (U(3, q2)), the group of all nonsingular n × n (unitary) matrices over GF(q) (GF(q2)), is used to obtain the character tables for the related subgroups SL(3, q), PSL(3, q) (SU(3, q2), PSU(3, q2)), the corresponding groups of matrices of determinant unity and the projective group respectively. There are very few abstract character tables which hold for entire families of groups. Such tables are of much greater value than tables for specific groups because, among other things, they enable one to discern various patterns common to the whole family.


2011 ◽  
Vol 14 ◽  
pp. 173-178 ◽  
Author(s):  
Thomas Breuer

AbstractWe describe a method for constructing the character table of a group of type M.G.A from the character tables of the subgroup M.G and the factor group G.A, provided that A acts suitably on M.G. This simplifies and generalizes a recently published method.


1967 ◽  
Vol 10 (5) ◽  
pp. 635-642 ◽  
Author(s):  
B. Banaschewski

The main object of this paper is to show that the existence of a particular kind of isomorphism between the integral group rings of two finite groups implies that the groups themselves are isomorphic. The proof employs certain types of linear forms which are first discussed in general. These linear forms are in some way related to the bilinear forms used by Weidmann [3] in showing that groups with isomorphic character rings have the same character table, and a shorter and, in a sense, more natural proof of this result is included here as another application of these linear forms.


2020 ◽  
Vol 97 (7) ◽  
pp. 1915-1921
Author(s):  
Minhhuy Hô ◽  
León Francisco Alday Toledo ◽  
Roberto Bernal-Jaquez

2010 ◽  
Vol 13 ◽  
pp. 82-89
Author(s):  
R. W. Barraclough

AbstractWe use the technique of Fischer matrices to write a program to produce the character table of a group of shape (2×2.G):2 from the character tables ofG,G:2, 2.Gand 2.G:2.


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