{ "id": "math/0602223", "version": "v1", "published": "2006-02-10T16:57:40.000Z", "updated": "2006-02-10T16:57:40.000Z", "title": "Relative exactness modulo a polynomial map and algebraic $(\\mathbb{C}^p,+)$-actions", "authors": [ "Philippe Bonnet" ], "comment": "26 pages", "journal": "Bull. Soc. math. France 131 (3), 2003, p. 373-398", "categories": [ "math.AG", "math.AC" ], "abstract": "Let $F=(f_1,...,f_q)$ be a polynomial dominating map from $\\mathbb{C}^n$ to $\\mathbb{C}^q$. We study the quotient ${\\cal{T}}^1(F)$ of polynomial 1-forms that are exact along the fibres of $F$, by 1-forms of type $dR+\\sum a_idf_i$, where $R,a_1,...,a_q$ are polynomials. We prove that ${\\cal{T}}^1(F)$ is always a torsion $\\mathbb{C}[t_1,...,t_q]$-module. The we determine under which conditions on $F$ we have ${\\cal{T}}^1(F)=0$. As an application, we study the behaviour of a class of algebraic $(\\mathbb{C}^p,+)$-actions on $\\mathbb{C}^n$, and determine in particular when these actions are trivial.", "revisions": [ { "version": "v1", "updated": "2006-02-10T16:57:40.000Z" } ], "analyses": { "subjects": [ "14R20", "14R25" ], "keywords": [ "relative exactness modulo", "polynomial map", "polynomial dominating map", "conditions", "application" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 26, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2006math......2223B" } } }