An algorithm to compute a presentation of pushforward modules
| Autor: | Marcelo Escudeiro Hernandes, G. Peñafort-Sanchis, A. J. Miranda |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Discrete mathematics
Singularity theory business.industry 010102 general mathematics 05 social sciences Dimension (graph theory) Pushforward (homology) Commutative Algebra (math.AC) Mathematics - Commutative Algebra 01 natural sciences Multiple point Mathematics - Algebraic Geometry Software 0502 economics and business FOS: Mathematics Geometry and Topology 0101 mathematics business Algebraic Geometry (math.AG) Algorithm 050203 business & management Mathematics |
| Popis: | We describe an algorithm to compute a presentation of the pushforward module f ⁎ O X for a finite map germ f : X → ( C n + 1 , 0 ) , where X is Cohen–Macaulay of dimension n. The algorithm is an improvement of a method by Mond and Pellikaan. We give applications to problems in singularity theory, computed by means of an implementation in the software Singular . |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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