Results 11 to 20 of about 5,027 (259)

Borel structures on the set of Borel mappings

open access: yesTopology and its Applications, 2012
In the paper [Pac. J. Math. 1, 5--31 (1951; Zbl 0044.11801)], \textit{R. Arens} and \textit{J. Dugundji} introduced and studied several types of topologies on the spaces of continuous functions such as admissible, proper and splitting topologies. In the paper under review, the authors study analogously Borel splitting and admissible structures on the ...
Georgiou, Dimitris   +2 more
openaire   +2 more sources

Borel canonization of analytic sets with Borel sections

open access: yesProceedings of the American Mathematical Society, 2018
Kanovei, Sabok and Zapletal asked whether every proper σ \sigma
Ohad Drucker
openaire   +4 more sources

Borel stay-in-a-set games

open access: yesInternational Journal of Game Theory, 2003
The authors consider an \(n\)-person stochastic game with a Borel state space and compact metric action sets. Under some measurability and continuity conditions, the following holds: If the payoff to each player \(i\) is 1 or 0 according to whether or not the stochastic process stays forever in a given Borel set \(G_i\) then there exists a Nash ...
Ashok P. Maitra, William D. Sudderth
openaire   +2 more sources

Borel Directions and Uniqueness of Meromorphic Functions [PDF]

open access: yesAbstract and Applied Analysis, 2013
We investigate the relationship between Borel directions and uniqueness of meromorphic functions and obtain some results of meromorphic functions sharing four distinct values IM and one set in an angular domain containing a Borel line.
Keyu Zhang, HongYan Xu, Hongxun Yi
doaj   +2 more sources

PARTITIONING THE REAL LINE INTO BOREL SETS

open access: yesThe Journal of Symbolic Logic, 2023
AbstractFor which infinite cardinals $\kappa $ is there a partition of the real line ${\mathbb R}$ into precisely $\kappa $ Borel sets? Work of Lusin, Souslin, and Hausdorff shows that ${\mathbb R}$ can be partitioned into $\aleph _1$ Borel sets. But other than this, we show that the spectrum of possible sizes of partitions of ${\mathbb R}$
Brian, Will
openaire   +3 more sources

Frucht’s theorem in Borel setting

open access: yesPeriodica Mathematica Hungarica, 2023
In this paper, we show that Frucht's theorem holds in Borel setting. More specifically, we prove that any standard Borel group can be realized as the Borel automorphism group of a Borel graph. A slight modification of our construction also yields the following result in topological setting: Any Polish group can be realized as the homeomorphic ...
Onur Bilge, Burak Kaya
openaire   +3 more sources

Representing Probability Measures using Probabilistic Processes [PDF]

open access: yes, 2006
In the Type-2 Theory of Effectivity, one considers representations of topological spaces in which infinite words are used as "names" for the elements they represent.
Schröder , Matthias   +3 more
core   +1 more source

Amenability, Countable Equivalence Relations, and Their Full Groups [PDF]

open access: yes, 2008
This thesis consists of an introduction and four independent chapters. In Chapter 1, we study homeomorphism groups of metrizable compactifications of the natural numbers. Those groups can be represented as almost zero-dimensional Polishable subgroups
Tsankov, Todor Dimitrov
core   +1 more source

Structure of the set of Borel exceptional vectors for entire curves

open access: yesМатематичні Студії, 2020
It is proved that the structure of the set of Borel exceptional vectors for transcendental entire curve something likes structure of the set of Nevanlinna deficient vectors for entire curve of finite order.
A.I. Bandura, Ya.I. Savchuk
doaj   +1 more source

Homogeneous Borel Sets [PDF]

open access: yesProceedings of the American Mathematical Society, 1986
Topological characterizations of all zero-dimensional homogeneous absolute Borel sets are obtained; it turns out that there are ω 1 {\omega _1} such spaces. We use results from game theory—particularly, about Wadge classes.
openaire   +2 more sources

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