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Isabel Fernández

Publications and source records attributed to Isabel Fernández.

2 recordsLinked to original sources

Optimal divisions of a convex body

For a convex body $C$ in $\mathbb{R}^d$ and a division of $C$ into convex subsets $C_1,\ldots,C_n$, we can consider $max\{F(C_1),\ldots, F(C_n)\}$ (respectively, $min\{F(C_1),\ldots, F(C_n)\}$), where $F$ represents one of these classical geometric magnitudes: the diameter, the minimal width, or the inradius. In this work we study the divisions of $C$ minimizing (respectively, maximizing) the previous value, as well as other related questions.

math.MG

Rotational Elliptic Weingarten surfaces in S2xR and the Hopf problem

We prove that any uniformly elliptic Weingarten (topological) sphere in S2xR must be congruent to the canonical example associated to the Weingarten equation. The result is obtained by proving that rotational uniformly elliptic Weingarten surfaces in S2xR have bounded second fundamental form together with a Hopf type result by J. A. Gálvez and P. Mira.

math.DG