Alexander S. Kechris

Alexander S. Kechris

Alexander Sotirios (Alekos) Kechris (1946) is a descriptive set theorist at Caltech. He has made major contributions to the theory of Borel equivalence relations.

Kechris earned his Ph.D. in 1972 under the direction of Yiannis N. Moschovakis, with a dissertation entitled "Projective Ordinals and Countable Analytic Sets".

His Erdős number is 2.


Wikimedia Foundation. 2010.

Игры ⚽ Нужен реферат?

Look at other dictionaries:

  • Alexander S. Kechris — Alexander Sotirios Kechris (* 1946) ist ein griechischstämmiger US amerikanischer mathematischer Logiker. Alexander Kechris (links) 1992 Kechris studierte an der Technischen Universität in Athen, wo er 1969 in Maschinenbau und Elektrotechnik… …   Deutsch Wikipedia

  • Cabal (set theory) — The Cabal was, or perhaps is, a grouping of set theorists in Southern California, particularly at UCLA and Caltech, perhaps also at UC Irvine. Organization and procedures range from informal to nonexistent, so it is difficult to say whether it… …   Wikipedia

  • Liste de personnes par nombre d'Erdős — Voici une liste non exhaustive de personnes ayant un nombre d Erdős de 0, 1 ou 2. Sommaire 1 #0 2 #1 3 #2 4 Référence …   Wikipédia en Français

  • Gregory Hjorth — (auch: Greg Hjorth; * 14. Juni 1963 in Melbourne; † 13. Januar 2011) war ein australischer Logiker, der sich mit Algebra, axiomatischer Mengenlehre und insbesondere mit deskriptiver Mengenlehre beschäftigte. Hjorth, der Sohn eines Neurologen aus… …   Deutsch Wikipedia

  • Set of uniqueness — M set redirects here. For the CityRail train, see CityRail M set. In mathematics, a set of uniqueness is a concept relevant to trigonometric expansions which are not necessarily Fourier series. Their study is a relatively pure branch of harmonic… …   Wikipedia

  • Perfect space — In mathematics, in the field of topology, perfect spaces are spaces that have no isolated points. In such spaces, every point can be approximated arbitrarily well by other points given any point and any topological neighborhood of the point,… …   Wikipedia

  • Borel set — In mathematics, a Borel set is any set in a topological space that can be formed from open sets (or, equivalently, from closed sets) through the operations of countable union, countable intersection, and relative complement. Borel sets are named… …   Wikipedia

  • List of people by Erdős number — Paul Erdős was one of the most prolific writers of mathematical papers. He collaborated a great deal, having 511 joint authors, a number of whom also have many collaborators. The Erdős number measures the collaborative distance between an author… …   Wikipedia

  • Liste de personnes par nombre d'Erdos — Liste de personnes par nombre d Erdős Liste des personne avec un nombre d Erdős de 0, 1 ou 2. Sommaire 1 #0 2 #1 3 #2 4 Liens externes // …   Wikipédia en Français

  • List of logicians — A logician is a person, such as a philosopher or mathematician, whose topic of scholarly study is logic. The famous logicians are listed below in English alphabetical transliteration order (by surname).compactTOC NOTOC A * Nate Ackerman (USA,… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”