On the isodiametric and isominwidth inequalities for planar bisections

For a given planar convex body K, a bisection of K is a decomposition of K into two closed sets A,B so that A∩B is an injective continuous curve connecting exactly two boundary points of K. Consider a bisection of K minimizing, over all bisections, the maximum diameter (resp., maximum width) of the...

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Detalles Bibliográficos
Autores: Cañete Martín, Antonio Jesús, González Merino, Bernardo
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/134619
Acceso en línea:https://hdl.handle.net/11441/134619
https://doi.org/10.4171/rmi/1225
Access Level:acceso abierto
Palabra clave:Planar convex bodies
Maximum bisecting diameter
Maximum bisecting width
Minimizing bisections
Descripción
Sumario:For a given planar convex body K, a bisection of K is a decomposition of K into two closed sets A,B so that A∩B is an injective continuous curve connecting exactly two boundary points of K. Consider a bisection of K minimizing, over all bisections, the maximum diameter (resp., maximum width) of the sets in the decomposition. In this note, we study some properties of these minimizing bisections and prove inequalities extending the classical isodiametric and isominwidth inequalities. Furthermore, we address the corresponding reverse optimization problems and establish inequalities similar to the reverse isodiametric and reverse isominwidth inequalities.