Upper bounds for the essential dimension of the moduli stack of SL
n
-bundles over a curve |
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| Authors: | A Dhillon N Lemire |
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| Institution: | 1. Department of Mathematics, University of Western Ontario, London, ON, N6A 5B7, Canada
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| Abstract: | We find upper bounds for the essential dimension of various moduli stacks of SL
n
-bundles over a curve. When n is a prime power, our calculation computes the essential dimension of the stack of stable bundles exactly and the essential
dimension is not equal to the dimension in this case. |
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| Keywords: | |
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