Abstract
We give a description of finite groups all irreducible characters of which take at most two nonzero values.
References
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Translated from Ukrainskii Matematicheskii Zhurnal, Vol. 47, No. 8, pp. 1144–1148, August, 1995.
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Zhmud', É.M. On finite groups all irreducible characters of which take at most two nonzero values. Ukr Math J 47, 1308–1313 (1995). https://doi.org/10.1007/BF01057720
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DOI: https://doi.org/10.1007/BF01057720