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RESEARCH PRODUCT

A reduction theorem for perfect locally finite minimal non-FC groups

Felix Leinen

subject

CombinatoricsSubgroupConjugacy classReduction (recursion theory)Group (mathematics)General MathematicsSpectrum (functional analysis)Structure (category theory)FC-groupMathematics

description

A group G is said to be a minimal non-FC group, if G contains an infinite conjugacy class, while every proper subgroup of G merely has finite conjugacy classes. The structure of imperfect minimal non-FC groups is quite well-understood. These groups are in particular locally finite. At the other end of the spectrum, a perfect locally finite minimal non-FC group must be a p-group. And it has been an open question for quite a while now, whether such groups exist or not.

https://doi.org/10.1017/s001708959997043x