Results 41 to 50 of about 111 (106)

Ultraproducts of factorial W*-bundles

open access: yes, 2023
This paper investigates factorial $W^*$-bundles and their ultraproducts. More precisely, a $W^*$-bundle is factorial if the von Neumann algebras associated to its fibers are all factors. Let $M$ be the tracial ultraproduct of a family of factorial $W^*$-bundles over compact Hausdorff spaces with finite, uniformly bounded covering dimensions.
openaire   +4 more sources

Length and ultraproducts

open access: yes, 2018
We construct, in ZFC, a sequence of Boolean algebras for which the product of Lengths is strictly smaller than the Length of the product algebra.
Garti, Shimon, Shelah, Saharon
openaire   +2 more sources

On ultraproducts of Boolean algebras and irr [PDF]

open access: yesArchive for Mathematical Logic, 2003
We prove the consistency of irr(prod limits_ ...
openaire   +3 more sources

Model theory and the cardinal numbers p and t. [PDF]

open access: yesProc Natl Acad Sci U S A, 2013
Moore JT.
europepmc   +1 more source

General topology meets model theory, on p and t. [PDF]

open access: yesProc Natl Acad Sci U S A, 2013
Malliaris M, Shelah S.
europepmc   +1 more source

Finite simple groups as expanders. [PDF]

open access: yesProc Natl Acad Sci U S A, 2006
Kassabov M, Lubotzky A, Nikolov N.
europepmc   +1 more source

Categories with ultraproducts

open access: yesCommentarii Mathematici Helvetici, 1973
openaire   +1 more source

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