activity
20082025
most citedOn the diameter of the commuting graph of the full matrix ring over the real numbers

9 citations · 26 across the 23 of their papers we have counts for

collaborators

25 papers

math.OC2025

Nash Equilibria in the Showcase Showdown game with unlimited spins

L. Bayón, P. Fortuny ayuso, J. M. Grau +2

The game of \emph{Showcase Showdown} with unlimited spins is investigated as an -players continuous game, and the Nash Equilibrium strategies for the players are obtained. The s…

math.CO2025★ 2 cited

A class of weighted Delannoy numbers

J. M. Grau, A. M Oller-Marcen, J. L. Varona

The weighted Delannoy numbers are defined by the recurrence relation if , with if . In this work, we…

math.PR2020

The multi-returning secretary problem

L. Bayon, P. Fortuny, J. M. Grau +2

In this paper we consider the so-called Multi-returning secretary problem, a version of the Secretary problem in which each candidate has identical copies. The case has a…

math.PR2018

The Best-or-Worst and the Postdoc problems with random number of candidates

L. Bayon, P. Fortuny, J. M. Grau +2

In this paper we consider two variants of the Secretary problem: The Best-or-Worst and the Postdoc problems. We extend previous work by considering that the number of objects is no…

math.PR2017

The Best-or-Worst and the Postdoc problems

L. Bayon, P. Fortuny Ayuso, J. M. Grau +2

We consider two variants of the secretary problem, the\emph{ Best-or-Worst} and the \emph{Postdoc} problems, which are closely related. First, we prove that both variants, in their…

math.PR2016★ 1 cited

A variant of the Secretary Problem: the Best or the Worst

L. Bayon, J. Grau, A. M. Oller-Marcen +2

We consider a variant of the secretary problem in which the candidates state their expected salary at the interview, which we assume is in accordance with their qualifications. The…