Existence of covers with fixed ramification in positive characteristic
classification
🧮 math.AG
math.NT
keywords
coverscharacteristicfixedpositiveramificationapplicationbranchedcertain
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We discuss two elementary constructions for covers with fixed ramification in positive characteristic. As an application, we compute the number of certain classes of covers between projective lines branched at 4 points and obtain information on the structure of the Hurwitz curve parametrizing these covers.
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