T. Zamfirescu

activity

20032026

collaborators

Showing 2019Show all

2 papers · 1 filter

math.MG2019

Locating diametral points

Jin-ichi Itoh, Costin Vîlcu, Liping Yuan +1

Let $K$ be a convex body in $R^{d}$ , with $d = 2, 3$ . We determine sharp sufficient conditions for a set $E$ composed of $1$ , $2$ , or $3$ points of $bd K$ , to contain a…

math.GT2019

With respect to whom are you critical?

Jin-ichi Itoh, Costin Vîlcu, Tudor Zamfirescu

For any compact Riemannian surface $S$ and any point $y$ in $S$ , $Q_{y}^{- 1}$ denotes the set of all points in $S$ , for which $y$ is a critical point. We proved \cite{BIVZ} together…