Groot en klein

Adriaan De Groot: Marriage of Two Passions a Personal Summary

In this contribution, which is a tribute to Adriaan de Groot in relation to his recent passing away, I would like to introduce the reader to his remarkable personality and to present the main tenets of his psychology of chess skill. I shall start by giving an overview of his chess and academic life. Then, basing my account on his seminal thesis and on more recent empirical and theoretical work,...

The de Groot dual for general collections of sets

A topology is de Groot dual of another topology, if it has a closed base consisting of all its compact saturated sets. Until 2001 it was an unsolved problem of J. Lawson and M. Mislove whether the sequence of iterated dualizations of a topological space is finite. In this paper we generalize the author’s original construction to an arbitrary family instead of a topology. Among other results we ...

Klein Reduction

We obtain new results for consistent braneworld Kaluza-Klein reductions, showing how we can derive four-dimensional N = 2 gauged supergravity " localised on the AdS 4 brane " as an exact embedding in five-dimensional N = 4 gauged supergravity. Similarly, we obtain five-dimensional N = 2 gauged supergravity localised on an AdS 5 brane as a consistent Kaluza-Klein reduction from six-dimensional N...

WAVELET SOLUTIONS OF THE KLEIN-GORDON EQUATION

Klein, Aber O

Drei Semester sind schon wieder ins Land gegangen seit meinem ersten Aufruf zu mehr Sorgfalt beim Verwenden mathematischer Symbole. Es war natürlich nur ein Tropfen auf den heißen Stein. Noch immer kann die Einstellung ” Das wollen wir jetzt mal nicht so genau nehmen.“, zu deutsch: ” Korrekte Schreibweisen würde doch sofort jeder verstehen!“, einen großen Fanclub um sich vereinen. Es ist also a...