Results 91 to 100 of about 17,484 (160)

Dense subalgebras in noncommutative Jordan topological algebras

open access: yesActa et Commentationes Universitatis Tartuensis de Mathematica, 1996
Wilansky conjectured in [12] that normed dense Q-algebras are full subalgebras of Banach algebras. Beddaa and  Oudadess proved in [2] that Wilansky’s conjecture was true. They showed that k-normed Q-algebras are full subalgebras of k-Banach algebras for each k∈(0,1]. Moreover, J. Pérez, L. Rico and A.
openaire   +2 more sources

Categorical Torelli theorems: results and open problems. [PDF]

open access: yesRend Circ Mat Palermo, 2023
Pertusi L, Stellari P.
europepmc   +1 more source

Noncommutative Topological Entropy of Endomorphisms of Cuntz Algebras II

open access: yesPublications of the Research Institute for Mathematical Sciences, 2011
A study of noncommutative topological entropy of gauge invariant endomorphisms of Cuntz algebras began in our earlier work with J.\,Zacharias is continued and extended to endomorphisms which are not necessarily of permutation type. In particular it is shown that if \mathsf{H}
openaire   +4 more sources

Noncommutative Topology and Prospects in Index Theory

open access: yes, 2016
This article is a tribute to the memory of Professor Enzo Martinelli, with deep respect and reconesance. Nicolae Teleman. The index formula is a local statement made on global and local data; for this reason we introduce local Alexander - Spanier co-homology, local periodic cyclic homology, local Chern character and local $T^{\ast}$-theory.
openaire   +2 more sources

Hyperbolic band theory. [PDF]

open access: yesSci Adv, 2021
Maciejko J, Rayan S.
europepmc   +1 more source

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