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In geometry, ramification is 'branching out', in the way that the square root function, for complex numbers, can be seen to have two branches differing in ...
by A Deopurkar2019Abstract: We study the ramification divisors of projections of a smooth projective variety onto a linear subspace of the same dimension.
by A Broustet2012Cited by 25can then study the geometry of the ramification divisors along ... rithmic ramification divisor, and the induced endomorphism f|Z : Z → Z ...
Sep 14, 2015This is just to record some thoughts on the different ideal or equivalently the ramification divisor in the case of quasi-finite morphisms f ...
Let C be a curve of genus 2 over the field k = C. (1) Show that the canonical divisor KC induces a finite morphism f : C ! P1 of degree. 2 ramified at 6 points.
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by L Ein1982Cited by 31References · Altman, A., Kleiman, S.: Introduction to Grothendieck duality. · Catanese, F.: Pluricanonical Gorenstein curves, Proceedings of the ...
Alexander Degtyarev, Ilia Itenberg, V. Kharlamov2000Mathematics
Thus , in the case of nonsingular Z one may speak of the branch divisor Uz CZ of a double covering ... Projection formula for the ramification divisors .

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