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Some Properties of the Schur Multiplier with Algebraic Topological Approach

Algebraic Topology 2010-12-16 v1 Group Theory

Abstract

In this paper, using a relationship between the Schur multiplier of a group GG, the fundamental group, and the second homology group of the Eilenberg-MacLane space of GG, we present new proofs for some famous properties of the Schur multiplier and its structure for the free product and the direct product with an algebraic topological approach. Also, we try to find the Schur multiplier of a free amalgamated product in terms of Schur multipliers of its factors, which is a new result.

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Cite

@article{arxiv.1012.3247,
  title  = {Some Properties of the Schur Multiplier with Algebraic Topological Approach},
  author = {Behrooz Mashayekhy and Hanieh Mirebrahimi},
  journal= {arXiv preprint arXiv:1012.3247},
  year   = {2010}
}

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8 pages