Abstract
For an irreducible character x of a finite group G,the codegree of x is de-fined as |G:ker(x)|/x(1).In this paper,the authors determine finite nonsolvable groups with exactly three nonlinear irreducible character codegrees,which are L2(2f)for f ≥ 2,PGL2(q)for odd q ≥ 5 or M10.
基金项目
国家自然科学基金(12301018)
国家自然科学基金(12171058)
国家自然科学基金(12326356)
江苏省自然科学基金(BK20231356)
Natural Science Foundation for the Universities in Jiangsu Province(23KJB110002)