Bounding and unbounding higher extensions for SL2

Bounding and unbounding higher extensions for SL2

We analyse the recursive formula found for various Ext groups for SL2(k), k a field of characteristic p , and derive various generating functions for these groups. We use this to show that the growth rate for the cohomology of SL2(k) is at least exponential. In particular, max{dimExtSL2(k)i (k,Δ(a))...

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Bibliografiske detaljer
Main Authors:	Erdmann, K, Hannabuss, K, Parker, A
Format:	Journal article
Sprog:	English
Udgivet:	2013

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