A volume comparison estimate with radially symmetric Ricci curvature lower bound and its applications.
Hu, Zisheng, Jin, Yadong, Xu, Senlin (2010)
International Journal of Mathematics and Mathematical Sciences
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Hu, Zisheng, Jin, Yadong, Xu, Senlin (2010)
International Journal of Mathematics and Mathematical Sciences
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Balgetir, Handan, Ergüt, Mahmut (2003)
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Klyachin, V.A., Miklyukov, V.M. (2003)
Annales Academiae Scientiarum Fennicae. Mathematica
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Eduardo H. A. Gonzales, Umberto Massari, Italo Tamanini (1993)
Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti Lincei. Matematica e Applicazioni
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The existence of a singular curve in is proven, whose curvature can be extended to an function. The curve is the boundary of a two dimensional set, minimizing the length plus the integral over the set of the extension of the curvature. The existence of such a curve was conjectured by E. De Giorgi, during a conference held in Trento in July 1992.
Harris, B.J., Marzano, F. (1999)
Electronic Journal of Qualitative Theory of Differential Equations [electronic only]
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Alois Švec (1978)
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Machado, José Márcio, Tsuchida, Masayoshi (2002)
Applied Mathematics E-Notes [electronic only]
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Banach Center Publications
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This paper studies the smoothness and the curvature of conflict sets of the distance function in the plane. Conflict sets are also well known as 'bisectors'. We prove smoothness in the case of two convex sets and give a formula for the curvature. We generalize moreover to weighted distance functions, the so-called Johnson-Mehl model.