5 papers
Factorizations of Matrices With Recursive Entries and Related Topics
Xiao You Chen, Ali Reza Moghaddamfar, Kambiz Moghaddamfar
This article examines matrices whose entries are determined by recursive relations of the form , where are consta…
Some Remarks on Super -groups
Xiaoyou Chen, A. R. Moghaddamfar
Let be a finite group and be a prime divisor of . An irreducible -Brauer character of is called super-monomial if every primitive -Brauer character induc…
Isaacs' Generalization of Taketa's theorem
Xiaoyou Chen, Mark L. Lewis
We generalize the definition of pseudo monomial characters and -groups to the Brauer character and Isaacs' -partial character settings. We prove an analogs of Isaacs's genera…
A converse for a theorem of Gallagher
Xiaoyou Chen, Mark L. Lewis
Let be a finite group. Suppose is a normal subgroup of . Recall that Gallagher's theorem states that if satisfies is irreducible, then is…
-groups and Codegrees; -groups and Brauer Character Degrees
Xiaoyou Chen, Mark L. Lewis
Let be a finite group and be a prime. We prove that if has three codegrees, then is an -group. We prove for some prime that if every irreducible Brauer chara…