Ping Jin

activity

20142023

collaborators

6 papers

math.GR2023

Navarro vertices and lifts in solvable groups

Lei Wang, Ping Jin

Let $Q$ be a $p$ -subgroup of a finite $p$ -solvable group $G$ , where $p$ is a prime, and suppose that $δ$ is a linear character of $Q$ with the property that $δ (x) = δ (y)$ whenever $x…

math.GR2023

Lifts of Brauer characters in characteristic two

Ping Jin, Lei Wang

A conjecture raised by Cossey in 2007 asserts that if $G$ is a finite $p$ -solvable group and $φ$ is an irreducible $p$ -Brauer character of $G$ with vertex $Q$ , then the number of l…

math.GR2022

The uniqueness of vertex pairs in $π$ -separable groups

Lei Wang, Ping Jin

Let $G$ be a finite $π$ -separable group, where $π$ is a set of primes, and let $χ$ be an irreducible complex character that is a $π$ -lift of some $π$ -partial character of $G$ .It wa…

math.GR2021

Codegrees of primitive characters of solvable groups

Ping Jin, Lei Wang, Yong Yang

We obtain the codegree of a certain primitive character for a finite solvable group, and thereby give a negative answer to a question proposed by Moretó in \cite{Moreto}.

math.GR2020

A note on larger orbit size

Jin Ping, Yong Yang

In this note, we present an improvement on the large orbit result of Halasi and Podoski, and then answer an open question raised by Chen, Cossey, Lewis, and Tong-Viet.

math.GR2014

Hyperbolic Modules of Finite Group Algebras over Finite Fields of Characteristic Two

Ping Jin, Yun Fan

Let $G$ be a finite group and let $F$ be a finite field of characteristic $2$ . We introduce \emph{ $F$ -special subgroups} and \emph{ $F$ -special elements} of $G$ . In the case where $…