{ "id": "1612.06793", "version": "v1", "published": "2016-12-20T18:25:40.000Z", "updated": "2016-12-20T18:25:40.000Z", "title": "The homotopy type of spaces of resultants of bounded multiplicity", "authors": [ "Andrzej Kozlowski", "Kohhei Yamaguchi" ], "categories": [ "math.AT" ], "abstract": "For positive integers $m,n, d\\geq 1$ with $(m,n)\\not= (1,1)$ and a field $\\Bbb F$ with its algebraic closure $\\overline{\\Bbb F}$, let $\\text{Poly}^{d,m}_n(\\Bbb F)$ denote the space of all $m$-tuples $(f_1(z),\\cdots ,f_m(z))\\in \\Bbb F [z]$ of monic polynomials of the same degree $d$ such that polynomials $f_1(z),\\cdots ,f_m(z)$ have no common root in $\\overline{\\Bbb F}$ of multiplicity $\\geq n$. These spaces were defined by Farb and Wolfson in \\cite{FW} as generalizations of spaces first studied by Arnold, Vassiliev, Segal and others in different contexts. In \\cite{FW} they obtained algebraic geometrical and arithmetic results about the topology of these spaces. In this paper we investigate the homotopy type of these spaces for the case $\\Bbb F =\\mathbb{C}$. Our results generalize those of \\cite{FW} for $\\Bbb F =\\Bbb C$ and also results of G. Segal \\cite{Se}, V. Vassiliev \\cite{Va} and F.Cohen-R.Cohen-B.Mann-R.Milgram \\cite{CCMM} for $m\\geq 2$ and $n\\geq 2$.", "revisions": [ { "version": "v1", "updated": "2016-12-20T18:25:40.000Z" } ], "analyses": { "subjects": [ "55P10", "55R80", "55P35" ], "keywords": [ "homotopy type", "bounded multiplicity", "resultants", "algebraic closure", "spaces first" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }