Étale homotopy sections of algebraic varieties
<p>We define and study the fundamental pro-finite 2-groupoid of varieties X defined over a field k. This is a higher algebraic invariant of a scheme X, analogous to the higher fundamental path 2-groupoids as defined for topological spaces. This invariant is related to previously defined invari...
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Materialtyp: | Lärdomsprov |
Språk: | English |
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2014
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