Results 11 to 20 of about 1,820 (180)
CONGRUENCE OF ULTRAFILTERS [PDF]
The Journal of Symbolic Logic, 2021 AbstractWe continue the research of the relation $\hspace {1mm}\widetilde {\mid }\hspace {1mm}$ on the set $\beta \mathbb {N}$ of ultrafilters on $\mathbb {N}$ , defined as an extension of the divisibility relation. It is a quasiorder, so we see it as an order on the set of $=_{\sim }$ -equivalence classes, where $\mathcal {F}=_{\sim }\mathcal ...
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PRODUCTS OF ULTRAFILTERS AND MAXIMAL LINKED SYSTEMS ON WIDELY UNDERSTOOD MEASURABLE SPACES
Ural Mathematical Journal, 2021 Constructions related to products of maximal linked systems (MLSs) and MLSs on the product of widely understood measurable spaces are considered (these measurable spaces are defined as sets equipped with \(\pi\)-systems of their subsets; a \(\pi ...
Alexander G. Chentsov
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Notre Dame Journal of Formal Logic, 2012 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Oleksandr Petrenko, I. V. Protasov
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Clustering in Celebrating Professor Themba A. Dube (A TAD Celebration II) [PDF]
Categories and General Algebraic Structures with ApplicationsThis paper is the second in the series celebrating the mathematical works of Professor Themba Dube. In this sequel, we give prominence to Dube's pivotal contributions on pointfree convergence at the unstructured frame level, in the category of locales ...
Inderasan Naidoo
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Logical compactness and constraint satisfaction problems [PDF]
Logical Methods in Computer Science, 2017 We investigate a correspondence between the complexity hierarchy of constraint satisfaction problems and a hierarchy of logical compactness hypotheses for finite relational structures.
Danny Rorabaugh +2 more
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A characterization of pseudocompactness
International Journal of Mathematics and Mathematical Sciences, 1981 It is proved here that a completely regular Hausdorff space X is pseudocompact if and only if for any continuous function f from X to a pseudocompact space (or a compact space) Y, f*ϕ is z-ultrafilter whenever ϕ is a z-ultrafilter on X.
Prabduh Ram Misra, Vinodkumar
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D-ultrafilters and their monads [PDF]
Advances in Mathematics, 2021 33 ...
Adámek, Jiří, Sousa, Lurdes
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The equality of the Patch topology and the Ultrafilter topology: A shortcut
Applied General Topology, 2011 In this work R denotes a commutative ring with non-zero identity andwe prove that the patch topology and the ultrafilter topology definedon the prime spectrum of R are equal, in a different way as the givenby Marco Fontana and K.
Luz M. Ruza, Jorge Vielma
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Realizability algebras: a program to well order R [PDF]
Logical Methods in Computer Science, 2011 The theory of classical realizability is a framework in which we can develop the proof-program correspondence. Using this framework, we show how to transform into programs the proofs in classical analysis with dependent choice and the existence of a well
Jean-Louis Krivine
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Success in Achieving Relatively High Targeted Convection Volumes in Multi-Ethnic Individuals Receiving Hemodiafiltration in Singapore. [PDF]
Hemodial IntABSTRACT Background Hemodiafiltration has demonstrated improved outcomes in end‐stage kidney disease, particularly with higher convection volumes than conventional hemodialysis. However, data on multiethnic Asian populations remain limited.
Chan C +9 more
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