Abstract
In this note, we characterize finite nonsolvable groups whose principal p-blocks consist of ordinary irreducible characters of prime power degrees for every prime p. In addition, we give an upper bound of the nilpotent length for the solvable situation.
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Acknowledgments
The author would like to thank Professor Wolfgang Willems for some helpful conversations and Professor Jiping Zhang for his persistent encouragement.
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Communicated by J. S. Wilson.
Y. Liu was supported by the National Natural Science Foundation of China (11201194) and (11471054). In addition, he was supported by Jiangxi Province Science Foundation for Youths (20142BAB211011).
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Liu, Y. Finite groups whose irreducible characters of principal blocks have prime power degrees. Monatsh Math 181, 117–122 (2016). https://doi.org/10.1007/s00605-015-0836-2
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DOI: https://doi.org/10.1007/s00605-015-0836-2