相关期刊:《Communications in Mathematical Research》《Acta Mathematica Sinica,English Series》《Journal of Mathematical Research with Applications》《Science China Mathematics》更多>>
A subgroup H of a finite group G is called a c#-normal subgroup of G if there exists a normal subgroup K of G such that G = HK and H n K is a CAP-subgroup of G. In this paper, we investigate the influence of fewer c#-...
Motivated by Problem 164 proposed by Y. Berkovich and E. Zhmud' in their book "Characters of Finite Groups", we give a characterization of finite groups whose irreducible character codegrees are prime powers. This ...
Supported by Science Foundation of He’nan University of Technology(Grant Nos.2011BS043 and 2010BS048);Tianyuan Fund of Mathematics of China(Grant No.11226046)
In this paper, we construct a new class of finite groups whose common divisor graphs are complete graphs, while there is no prime dividing all the nontrivial degrees.
Monomorphism categories of the symmetric and alternating groups are studied via Cayley's Em-bedding Theorem. It is shown that the parity is well defined in such categories. As an application, the parity in a finite gr...
supported by MEC of Spain,FEDER of European Union (Grant No.MTM-2007-68010-C03-02);MICINN of Spain (Grant No. MTM-2010-19938-C03-01);National Natural Science Foundation of China (Grant No. 11171353/A010201);Natural Science Fund of Guangdong (Grant No.S2011010004447)
A subgroup H of a finite group G is a partial CAP-subgroup of G if there is a chief series of G such that H either covers or avoids every chief factor of the series.The structural impact of the partial cover and avoid...
Supported by National Natural Science Foundation of China (Grant No.10871210);Natural Science Foundation of Guangdong Province (Grant No.06023728)
Suppose that G is a finite group and H is a subgroup of G. We say that H is ssemipermutable in G if HGv = GpH for any Sylow p-subgroup Gp of G with (p, |H|) = 1. We investigate the influence of s-semipermutable su...