Results 21 to 30 of about 551 (44)

Reconstruction of manifolds in noncommutative geometry

open access: yes, 2008
We show that the algebra A of a commutative unital spectral triple (A,H,D) satisfying several additional conditions, slightly stronger than those proposed by Connes, is the algebra of smooth functions on a compact spin manifold.Comment: 67 pages, no ...
Rennie, Adam, Varilly, Joseph C.
core   +1 more source

Various L2-signatures and a topological L2-signature theorem

open access: yes, 2007
For a normal covering over a closed oriented topological manifold we give a proof of the L2-signature theorem with twisted coefficients, using Lipschitz structures and the Lipschitz signature operator introduced by Teleman.
Lueck, Wolfgang, Schick, Thomas
core   +1 more source

Unitary equivalence and decompositions of finite systems of closed densely defined operators in Hilbert spaces

open access: yes, 2011
An \textit{ideal} of $N$-tuples of operators is a class invariant with respect to unitary equivalence which contains direct sums of arbitrary collections of its members as well as their (reduced) parts. New decomposition theorems (with respect to ideals)
Niemiec, Piotr
core   +1 more source

Open problems in Banach spaces and measure theory

open access: yes, 2016
We collect several open questions in Banach spaces, mostly related to measure theoretic aspects of the theory. The problems are divided into five categories: miscellaneous problems in Banach spaces (non-separable $L^p$ spaces, compactness in Banach ...
Rodriguez, Jose
core  

Algebras of quantum monodromy data and decorated character varieties

open access: yes, 2017
The Riemann-Hilbert correspondence is an isomorphism between the de Rham moduli space and the Betti moduli space, defined by associating to each Fuchsian system its monodromy representation class.
Chekhov, Leonid   +2 more
core  

Completeness of spaces wth Toeplitz decompositions [PDF]

open access: yes, 1998
Paúl Escolano, Pedro José   +2 more
core   +1 more source
Some of the next articles are maybe not open access.

Topological acoustics

Nature Reviews Materials, 2022
Haoran Xue, Yihao Yang, Baile Zhang
exaly  

Topological materials discovery from crystal symmetry

Nature Reviews Materials, 2021
Benjamin J Wieder   +2 more
exaly  

Weyl, Dirac and high-fold chiral fermions in topological quantum matter

Nature Reviews Materials, 2021
M Zahid Hasan   +2 more
exaly  

Engineered platforms for topological superconductivity and Majorana zero modes

Nature Reviews Materials, 2021
Karsten Flensberg   +2 more
exaly  

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