4 papers
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 indu…
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 gener…
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 $Ïβ…
-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…