excursion
发表于 2025-3-28 18:15:25
Advances in 21st Century Human Settlementsepresentation of a countable, amenable, group in the Calkin algebra is unitarizable. Using a Luzin family, one defines a uniformly bounded, non-unitarizable, representation of . in the Calkin algebra. This example yields an amenable operator algebra not isomorphic to a C.-algebra. This is a result of the author, Choi, and Ozawa.
florid
发表于 2025-3-28 22:47:47
Book 2019ral long-standing open problems on C*-algebras. The interplay between logic and operator algebras (C*-algebras, in particular) is relatively young and the author is at the forefront of this interaction. The deep level of scholarship contained in these pages is evident and opens doors to operator alg
Definitive
发表于 2025-3-29 01:14:12
Infinitary Combinatorics II: The Metric Caseused to reflect properties of large C.-algebras to their separable subalgebras and prove that algebras indistinguishable by any of the standard K-theoretic invariants are not isomorphic. The spaces of models—both discrete and metric—are studied in Section 7.1. Proposition 7.2.9 is a metric variant of the Pressing Down Lemma.
轿车
发表于 2025-3-29 04:41:01
Additional Set-Theoretic Axiomsxiom asserting that a Polish space cannot be covered by fewer than . meagre subsets is used to construct a selective ultrafilter on .. The chapter ends with a discussion of the Ramseyan axiom . and some of its applications.
Legend
发表于 2025-3-29 11:17:32
Gaps and Incompactnessepresentation of a countable, amenable, group in the Calkin algebra is unitarizable. Using a Luzin family, one defines a uniformly bounded, non-unitarizable, representation of . in the Calkin algebra. This example yields an amenable operator algebra not isomorphic to a C.-algebra. This is a result of the author, Choi, and Ozawa.
Little
发表于 2025-3-29 13:41:51
Kasun Weranga,Sisil Kumarawadu,D P Chandimaasics of the Tukey ordering of directed sets are presented in Section 9.6. We prove that two directed sets are cofinally equivalent if and only if they are isomorphic to cofinal subsets of some directed set. We study the directed set ., the associated small cardinals . and ., and two directed sets c
aqueduct
发表于 2025-3-29 16:16:09
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内部
发表于 2025-3-29 21:11:33
Smart Metropolitan Regional Developmentt every uniformly bounded representation of a countable amenable group into such C.-algebra is unitarizable (Section 15.4.1; this fails for uncountable groups, Section .), and that such C.-algebras admit a poor man’s version of Borel functional calculus that generalizes the Brown–Douglas–Fillmore “S
Matrimony
发表于 2025-3-30 01:21:26
Smart Metropolitan Regional Development to the Continuum Hypothesis. In order to keep the cardinality of the set of pages of this text within reasonable limits the proof of the converse is only outlined). The chapter ends with theorems due to Ge–Hadwin and the author, Hart, and Sherman, in which a large number of (outer) automorphisms of
muscle-fibers
发表于 2025-3-30 05:24:06
Set Theory and Quotientsasics of the Tukey ordering of directed sets are presented in Section 9.6. We prove that two directed sets are cofinally equivalent if and only if they are isomorphic to cofinal subsets of some directed set. We study the directed set ., the associated small cardinals . and ., and two directed sets c