On minimal free resolutions of projective varieties of degree = codimension + 2
نویسندگان
چکیده
منابع مشابه
Minimal Free Resolutions of Projective Subschemes of Small Degree
For an arbitrary projective subscheme X ⊂ P, it is impossible to say much about its minimal free resolution. Some a priori information is needed. In this article we will consider integral subschemes as well as equidimensional Cohen-Macaulay subschemes of small degree. There are several encouraging results for such subschemes in the literature. Our goal is to discuss the known results and to mot...
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In this paper, we present an algorithmic method for computing a projective resolution of a module over an algebra over a field. If the algebra is finite dimensional, and the module is finitely generated, we have a computational way of obtaining a minimal projective resolution, maps included. This resolution turns out to be a graded resolution if our algebra and module are graded. We apply this ...
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For a given sequence of integers (ni) ∞ i=1 we consider all the central simple algebras A (over all fields) satisfying the condition ind A = ni and find among them an algebra having the biggest torsion in the second Chow group CH of the corresponding Severi-Brauer variety (“biggest” means that it can be mapped epimorphically onto each other). We describe this biggest torsion in a way in general...
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We prove Sturmfels’ conjecture that toric varieties of codimension two have no other flat deformations than those obtained by Gröbner basis theory.
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ژورنال
عنوان ژورنال: Journal of Pure and Applied Algebra
سال: 1993
ISSN: 0022-4049
DOI: 10.1016/0022-4049(93)90112-7