A brief sketch of the scientific, pedagogical, and public activities of Yu. V. Linnik.
On the background of Borůvka’s pioneering work we present a survey of the development related to the Minimum Spanning Tree Problem. We also complement the historical paper Graham-Hell [GH] by a few remarks and provide an update of the extensive literature devoted to this problem.
Nous publions et commentons brièvement une démonstration du théorème critique des processus de branchement très vraisemblablement due à Bienaymé.
Hormigón [1991] says that The introduction of modern mathematical ideas in Spain was carried out mainly by three authors: García de Galdeano, Torres Quevedo and Rey Pastor. Being true the affirmation about these authors, one name at least is missing. The efforts of Ventura Reyes Prosper to introduce the new mathematical ideas in Spain were at least simultaneous in time, although maybe far fruitless. Reyes Prosper is also worth of mention by his research work. He was the first Spanish mathematician...