{"title":"Medial Axis and Singularities.","authors":"Lev Birbrair, Maciej P Denkowski","doi":"10.1007/s12220-017-9763-x","DOIUrl":"https://doi.org/10.1007/s12220-017-9763-x","url":null,"abstract":"<p><p>This paper is devoted to the study of the <i>medial axes</i> of sets definable in polynomially bounded o-minimal structures, i.e. the sets of points with more than one closest point with respect to the Euclidean distance. Our point of view is that of singularity theory. While trying to make the paper self-contained, we gather here also a large bunch of basic results. Our main interest, however, goes to the characterization of those singular points of a definable, closed set <math><mrow><mi>X</mi> <mo>⊂</mo> <msup><mrow><mi>R</mi></mrow> <mi>n</mi></msup> </mrow> </math> , which are reached by the medial axis.</p>","PeriodicalId":56121,"journal":{"name":"Journal of Geometric Analysis","volume":"27 3","pages":"2339-2380"},"PeriodicalIF":1.1,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s12220-017-9763-x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37029463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Injectivity and Stability for a Generic Class of Generalized Radon Transforms.","authors":"Andrew Homan, Hanming Zhou","doi":"10.1007/s12220-016-9729-4","DOIUrl":"https://doi.org/10.1007/s12220-016-9729-4","url":null,"abstract":"<p><p>Let (<i>M</i>, <i>g</i>) be an analytic, compact, Riemannian manifold with boundary, of dimension <math><mrow><mi>n</mi> <mo>≥</mo> <mn>2</mn></mrow> </math> . We study a class of generalized Radon transforms, integrating over a family of hypersurfaces embedded in <i>M</i>, satisfying the Bolker condition (in: Quinto, Proceedings of conference \"Seventy-five Years of Radon Transforms\", Hong Kong, 1994). Using analytic microlocal analysis, we prove a microlocal regularity theorem for generalized Radon transforms on analytic manifolds defined on an analytic family of hypersurfaces. We then show injectivity and stability for an open, dense subset of smooth generalized Radon transforms satisfying the Bolker condition, including the analytic ones.</p>","PeriodicalId":56121,"journal":{"name":"Journal of Geometric Analysis","volume":"27 2","pages":"1515-1529"},"PeriodicalIF":1.1,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s12220-016-9729-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36847503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"On Brunn–Minkowski-Type Inequalities for Polar Bodies","authors":"M. A. Hernández Cifre, J. Yepes Nicolás","doi":"10.1007/s12220-014-9541-y","DOIUrl":"https://doi.org/10.1007/s12220-014-9541-y","url":null,"abstract":"","PeriodicalId":56121,"journal":{"name":"Journal of Geometric Analysis","volume":"26 1","pages":"143 - 155"},"PeriodicalIF":1.1,"publicationDate":"2014-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s12220-014-9541-y","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"52802826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Disc Formula for Plurisubharmonic Subextensions in Manifolds","authors":"B. Drinovec Drnovšek","doi":"10.1007/s12220-014-9474-5","DOIUrl":"https://doi.org/10.1007/s12220-014-9474-5","url":null,"abstract":"","PeriodicalId":56121,"journal":{"name":"Journal of Geometric Analysis","volume":"25 1","pages":"1401 - 1408"},"PeriodicalIF":1.1,"publicationDate":"2014-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s12220-014-9474-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"52802298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The Paley–Wiener Theorem and Limits of Symmetric Spaces","authors":"G. Ólafsson, J. Wolf","doi":"10.1007/s12220-013-9467-9","DOIUrl":"https://doi.org/10.1007/s12220-013-9467-9","url":null,"abstract":"","PeriodicalId":56121,"journal":{"name":"Journal of Geometric Analysis","volume":"24 1","pages":"1 - 31"},"PeriodicalIF":1.1,"publicationDate":"2013-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s12220-013-9467-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"52802250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Reduction of Five-Dimensional Uniformly Levi Degenerate CR Structures to Absolute Parallelisms","authors":"A. Isaev, D. Zaitsev","doi":"10.1007/s12220-013-9419-4","DOIUrl":"https://doi.org/10.1007/s12220-013-9419-4","url":null,"abstract":"","PeriodicalId":56121,"journal":{"name":"Journal of Geometric Analysis","volume":"23 1","pages":"1571 - 1605"},"PeriodicalIF":1.1,"publicationDate":"2013-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s12220-013-9419-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"52802236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"On the Best Pinching Constant of Conformal Metrics on $mathbb {S}^{2}$ with One and Two Conical Singularities","authors":"D. Bartolucci","doi":"10.1007/S12220-011-9266-0","DOIUrl":"https://doi.org/10.1007/S12220-011-9266-0","url":null,"abstract":"","PeriodicalId":56121,"journal":{"name":"Journal of Geometric Analysis","volume":"23 1","pages":"855-877"},"PeriodicalIF":1.1,"publicationDate":"2013-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/S12220-011-9266-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"52793546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Logarithmic Lp Bounds for Maximal Directional Singular Integrals in the Plane","authors":"C. Demeter, Francesco Di Plinio","doi":"10.1007/s12220-012-9340-2","DOIUrl":"https://doi.org/10.1007/s12220-012-9340-2","url":null,"abstract":"","PeriodicalId":56121,"journal":{"name":"Journal of Geometric Analysis","volume":"24 1","pages":"375 - 416"},"PeriodicalIF":1.1,"publicationDate":"2012-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s12220-012-9340-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"52801800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Solutions of Semilinear Elliptic Equations in Tubes","authors":"F. Pacard, F. Pacella, B. Sciunzi","doi":"10.1007/s12220-012-9342-0","DOIUrl":"https://doi.org/10.1007/s12220-012-9342-0","url":null,"abstract":"","PeriodicalId":56121,"journal":{"name":"Journal of Geometric Analysis","volume":"24 1","pages":"445 - 471"},"PeriodicalIF":1.1,"publicationDate":"2012-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s12220-012-9342-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"52802059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}