J. Grau

activity

20102025

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

9 citations · 36 across the 31 of their papers we have counts for

collaborators

Showing 2017Show all

2 papers · 1 filter

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.RA2017

Generalized Quaternion Rings over $Z / n Z$ for an odd $n$

J. M. Grau, C. Miguel, A. M. oller-Marcén

We consider a generalization of the quaternion ring $(\frac{a , b}{R})$ over a commutative unital ring $R$ that includes the case when $a$ and $b$ are not units of $R$ . In th…

The Best-or-Worst and the Postdoc problems

Generalized Quaternion Rings over Z/nZ for an odd n

Generalized Quaternion Rings over $Z / n Z$ for an odd $n$