DOI: 10.1112/blms.70040 ISSN: 0024-6093

The Baby Monster is the largest group with at most 2 irreducible characters with the same degree

Juan Martínez Madrid
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Abstract

We classify all finite groups such that all irreducible character degrees appear with multiplicity at most 2. As a consequence, we prove that the largest group with at most two irreducible characters of the same degree is the Baby Monster.

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