1 citations · 1 across the 4 of their papers we have counts for
4 papers
Some results on the Dunkl-Williams constant
Javier Alonso, Pedro Martín
This paper presents a compilation of various formulas for calculating the Dunkl-Williams constant of a real normed linear space. The constant related to Birkhoff…
Chebyshev sets and ball operators
Horst Martini, Pedro Martín, Margarita Spirova
The Chebyshev set of a bounded set in a normed space is the set of centers of all minimal enclosing balls of . We use the concept of ball intersection and ball hull operator…
Inscribed Polygons that Characterize Inner Product Spaces
Carlos Benítez, Pedro Martín, Diego Yáñez
Let be a real normed space with unit sphere S. We prove that is an inner product space if and only if there exists a real number , $(k=…
The 2-center problem and ball operators in strictly convex normed planes
Pedro Martín, Horst Martini, Margarita Spirova
We investigate the 2-center problem for arbitrary strictly convex, centrally symmetric curves instead of usual circles. In other words, we extend the 2-center problem (from the Euc…