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What is Essential Dimensions of A 7 and S 7 about?

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.

Author

Duncan, Alexander

Published

2009

Language

EN