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Übersetzung für 'Ryll-Nardzewski' von Englisch nach Deutsch

Ryll-Nardzewski fixed-point theorem

Fixpunkt {m} von Ryll-Nardzewskimath.

• Fixpunkt {m} von Ryll-Nardzewski = Ryll-Nardzewski fixed-point theorem

• Czesław Ryll-Nardzewski proved that Peano arithmetic cannot be finitely axiomatized, and Richard Montague proved that ZFC cannot be finitely axiomatized.
• Other results include the Markov–Kakutani fixed-point theorem (1936-1938) and the Ryll-Nardzewski fixed-point theorem (1967) for continuous affine self-mappings of compact convex sets, as well as the Earle–Hamilton fixed-point theorem (1968) for holomorphic self-mappings of open domains.
• In mathematics, the Kuratowski–Ryll-Nardzewski measurable selection theorem is a result from measure theory that gives a sufficient condition for a set-valued function to have a measurable selection function.
• With Asplund in 1967, Namioka gave one of the first complete proofs of the Ryll-Nardzewski fixed-point theorem.
• The proof presented here was arranged by Czesław Ryll-Nardzewski and is much simpler than Khinchin's original proof which did not use ergodic theory.

• The other two papers include a characterization of theories having only one countable model, obtained also by the Polish logician Czesław Ryll-Nardzewski, and results on prime models, obtained also by Robert Vaught at Berkeley.
• The equivalent characterisations of this subsection, due independently to Engeler, Ryll-Nardzewski and Svenonius, are sometimes referred to as the Ryll-Nardzewski theorem.
• Czesław Ryll-Nardzewski ([...]; 7 October 1926 – 18 September 2015) was a Polish mathematician.