Results 171 to 180 of about 4,370 (257)

Spectral Characterization Of Sums Of Commutators II

, 1998
For countably generated ideals, J , of B(H), geometric stability is necessary for the canonical spectral characterization of sums of (J ; B(H))-commutators to hold. This answers a question raised by Dykema, Figiel, Weiss and Wodzicki.
N. J. Kalton, K. J. Dykema
core  

Rings and C*-algebras generated by commutators ☆

We show that a unital ring is generated by its commutators as an ideal if and only if there exists a natural number N such that every element is a sum of N products of pairs of commutators.
Thiel, Hannes,, Gardella, Eusebio,
core   +1 more source

Symbolic Calculus for a Class of Pseudodifferential Operators with Applications to Compactness. [PDF]

J Geom Anal
Bényi Á, Oh T, Torres RH.
europepmc   +1 more source

From Quantum Time to Manifestly Covariant QFT: On the Need for a Quantum-Action-Based Quantization. [PDF]

Entropy (Basel)
Diaz NL.
europepmc   +1 more source

Entropic Dynamics Approach to Quantum Electrodynamics. [PDF]

Entropy (Basel)
Caticha A.
europepmc   +1 more source

Commutators and commutator subgroups

Advances in Mathematics, 1982
openaire   +1 more source

Infidelity Analysis of Digital Counter-Diabatic Driving in Simple Two-Qubit System. [PDF]

Entropy (Basel)
Lei O.
europepmc   +1 more source

ON SINGLE COMMUTATORS IN II1-FACTORS

, 2012
We investigate the question of whether all elements of trace zero in a II1-factor are single commutators. We show that all nilpotent elements are single commutators, as are all normal elements of trace zero whose spectral distributions are discrete ...

core  

Stability of Partially Congested Travelling Wave Solutions for the Dissipative Aw-Rascle System. [PDF]

J Math Fluid Mech
Deléage É, Mehmood MA.
europepmc   +1 more source

Matrix Quantum Mechanics and Entanglement Entropy: A Review. [PDF]

Entropy (Basel)
Fliss JR, Frenkel A.
europepmc   +1 more source