Essential Dimensions of A_7 and S_7
Algebraic Geometry
2010-09-28 v1
Abstract
We show that Y. Prokhorov's "Simple Finite Subgroups of the Cremona Group of Rank 3" implies that, over any field of characteristic 0, the essential dimensions of the alternating group, A_7, and the symmetric group, S_7, are 4.
Keywords
Cite
@article{arxiv.0908.3220,
title = {Essential Dimensions of A_7 and S_7},
author = {Alexander Duncan},
journal= {arXiv preprint arXiv:0908.3220},
year = {2010}
}
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5 pages