Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4669127 | Bulletin des Sciences Mathématiques | 2010 | 14 Pages |
Abstract
Let X be a smooth projective variety defined over a perfect field k of positive characteristic, and let FX be the absolute Frobenius morphism of X. For any vector bundle E→X, and any polynomial g with non-negative integer coefficients, define the vector bundle using the powers of FX and the direct sum operation. We construct a neutral Tannakian category using the vector bundles with the property that there are two distinct polynomials f and g with non-negative integer coefficients such that . We also investigate the group scheme defined by this neutral Tannakian category.
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