{ "id": "1506.07996", "version": "v1", "published": "2015-06-26T08:49:54.000Z", "updated": "2015-06-26T08:49:54.000Z", "title": "Topologically equisingular deformations of homogeneous hypersurfaces with line singularities are equimultiple", "authors": [ "Christophe Eyral" ], "categories": [ "math.AG", "math.CV" ], "abstract": "We prove that if $\\{f_t\\}$ is a family of line singularities with constant L\\^e numbers and such that $f_0$ is a homogeneous polynomial, then $\\{f_t\\}$ is equimultiple. This extends to line singularities a well known theorem of A. M. Gabri\\`elov and A. G. Ku\\v{s}nirenko concerning isolated singularities. As an application, we show that if $\\{f_t\\}$ is a topologically $\\mathscr{V}$-equisingular family of line singularities, with $f_0$ homogeneous, then $\\{f_t\\}$ is equimultiple. This provides a new partial positive answer to the famous Zariski multiplicity conjecture for a special class of non-isolated hypersurface singularities.", "revisions": [ { "version": "v1", "updated": "2015-06-26T08:49:54.000Z" } ], "analyses": { "subjects": [ "32S15", "32S25", "32S05" ], "keywords": [ "line singularities", "topologically equisingular deformations", "homogeneous hypersurfaces", "equimultiple", "famous zariski multiplicity conjecture" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2015arXiv150607996E" } } }