Results 11 to 20 of about 47 (47)

Completeness of the set of sub‐σ‐algebras

open access: yes, 1992
International Journal of Mathematics and Mathematical Sciences, Volume 16, Issue 3, Page 511-514, 1993.
Xikui Wang
wiley   +1 more source

ON HOMOMORPHISM GRAPHS

open access: yesForum of Mathematics, Pi
We introduce new types of examples of bounded degree acyclic Borel graphs and study their combinatorial properties in the context of descriptive combinatorics, using a generalization of the determinacy method of Marks [Mar16].
Sebastian Brandt   +5 more
doaj   +1 more source

Category bases

open access: yes, 1992
International Journal of Mathematics and Mathematical Sciences, Volume 16, Issue 3, Page 531-538, 1993.
M. Detlefsen, A. Szymanski
wiley   +1 more source

Complexity of finite Borel asymptotic dimension

open access: yesForum of Mathematics, Sigma
We show that the set of locally finite Borel graphs with finite Borel asymptotic dimension is $\boldsymbol {\Sigma }^1_2$ -complete. The result is based on a combinatorial characterization of finite Borel asymptotic dimension for graphs generated ...
Jan Grebík, Cecelia Higgins
doaj   +1 more source

Ascoli-type theorems in the cone metric space setting

open access: yes, 2014
We give some necessary and sufficient conditions for (global) continuity of the limit of a pointwise convergent net of cone metric space-valued functions, defined on a Hausdorff topological space, in terms of weak filter exhaustiveness. In this framework,
Boccuto, A., Dimitriou, X.
core  

Mērs un integrālis ar L-nestriktām vērtībām

open access: yes, 2012
Promocijas darbā mēra un integrāļa koncepcijas ir attīstītas L-kopu teori- jas kontekstā, kur L ir pilns, pilnīgi distributīvs režģis ar minimuma t-normu.
Ruža, Večislavs
core  

L-fuzzy valued measure and integral

open access: yes, 2012
Promocijas darbâ mçra un integrâïa koncepcijas ir attîstîtas L-kopu teori- jas kontekstâ, kur L ir pilns, pilnîgi distributîvs reþìis ar minimuma t-normu.
Večislavs Ruža
core  

Ideal convergent subseries in banach spaces

open access: yes, 2019
Assume that I is an ideal on N, and Σnxn is a divergent series in a Banach space X. We study the Baire category, and the measure of the set A(I) := {t ∈ {0,1}N : Σn t(n)xn is I-convergent. In the category case, we assume that I has the Baire property and
Balcerzak, Marek   +2 more
core  

COMPLETE NONMEASURABILITY IN REGULAR FAMILIES

open access: yes, 2014
. We show that for a σ-ideal I with a Borel base of subsets of an uncountable Polish space, if A is (in several senses) a ”regular ” family of subsets from I then there is a subfamily of A whose union is completely nonmeasurable i.e.
Szymon Zeberski   +1 more
core  

On the ideal (v 0)

open access: yesOpen Mathematics, 2008
Kalemba Piotr   +2 more
doaj   +1 more source

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