Towards a theory of arithmetic degrees

Details Towards a theory of arithmetic degrees Towards a theory of arithmetic degrees

1996-02-28

arxiv.org/abs/alg-geom/9602022v2

Mathematics

Algebraic Geometry

LaTeX, 14 pages

Scientific paper

The aim of this paper is to start a systematic investigation of the arithmetic degree of projective schemes as introduced by D. Bayer and D. Mumford. One main theme concerns itself with the behaviour of this arithmetic degree under hypersurface sections. The notion of arithmetic degree involves the new concept of length-multiplicity of embedded primary ideals. Therefore it is much harder to control the arithmetic degree under a hypersurface section than in the case for the classical degree theory. Nevertheless it has important and interesting applications. We describe such applications to the Castelnuovo-Mumford regularity and to Bezout-type theorems.

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