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This article is cited in 3 scientific papers (total in 3 papers)
Differential Forms on Quasihomogeneous Noncomplete Intersections
A. G. Aleksandrov V. A. Trapeznikov Institute of Control Sciences of Russian Academy of Sciences, Moscow
Abstract:
In this article, we discuss a few simple methods for computing the Poincaré series of modules of differential forms given on quasihomogeneous noncomplete intersections of various types. Among them are curves associated with a semigroup, bouquets of such curves, affine cones over rational or elliptic curves, and normal determinantal and toric varieties, including some types of quotient singularities, as well as cones over the Veronese embedding of projective spaces or over the Segre embedding of products of projective spaces, rigid singularities, fans, etc. In many cases, correct formulas can be derived without resorting to analysis of complicated resolvents or using computer systems of algebraic calculations. The obtained results allow us to
compute the basic invariants of singularities in an explicit form by means of elementary operations on rational functions.
Keywords:
differential forms, Poincaré complex, de Rham complex, graded singularities, determinantal singularities, rigid singularities, fans.
Received: 04.03.2015
Citation:
A. G. Aleksandrov, “Differential Forms on Quasihomogeneous Noncomplete Intersections”, Funktsional. Anal. i Prilozhen., 50:1 (2016), 1–19; Funct. Anal. Appl., 50:1 (2016), 1–16
Linking options:
https://www.mathnet.ru/eng/faa3223https://doi.org/10.4213/faa3223 https://www.mathnet.ru/eng/faa/v50/i1/p1
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Abstract page: | 477 | Full-text PDF : | 79 | References: | 97 | First page: | 72 |
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