Results 121 to 130 of about 8,379 (259)

COMMUTANTS AND DOUBLE COMMUTANTS OF REFLEXIVE ALGEBRAS

open access: yesKyushu Journal of Mathematics, 1996
The author studies the commutant and the double commutant of the algebra \(\text{alg }{\mathcal L}\) of all bounded operators on a Banach space \(X\) leaving invariant each member of a lattice \({\mathcal L}\) of subspaces of \(X\). For example, he proves that when \({\mathcal L}\) is the pentagon subspace lattice, then the only operators commuting ...
openaire   +3 more sources

Seniority‐Zero Quadratic Canonical Transformation Theory

open access: yesInternational Journal of Quantum Chemistry, Volume 126, Issue 12, June 15, 2026.
We construct a unitary transformation of electronic Hamiltonians using quadratic canonical transformation theory, choosing the transformation to minimize the non‐seniority‐zero elements of the transformed Hamiltonian. This allows us to add dynamic correlation to the static correlation inherent in orbital‐optimized doubly‐occupied (seniority‐zero ...
Daniel F. Calero‐Osorio, Paul W. Ayers
wiley   +1 more source

Satisfiability of commutative vs. non-commutative CSPs

open access: yesCoRR
v2: the main result now omits one case, but also includes infinite-dimensional operators v3: more discussion and comments on related work; v4: full version of an ICALP 2025 ...
Bulatov, Andrei A., Živný, Stanislav
openaire   +3 more sources

Unimodular Commutators [PDF]

open access: yesProceedings of the American Mathematical Society, 1987
Let R R be a principal ideal ring and
openaire   +1 more source

Commutator End Cover Blueprint

open access: yes, 2021
Special commutator end cover for P3 motor by Mather and Platt Ltd Manchester, full size.
Mather and Platt
core  

Multi‐Mode Deep Strong Coupling in a Multi Quantum Well Fabry–Perot Cavity

open access: yesAdvanced Optical Materials, Volume 14, Issue 21, 5 June 2026.
Multi‐mode deep‐strong coupling is demonstrated in a 166‐well heterostructure that acts as a Fabry–Perot cavity. Even cavity modes couple strongly to the cyclotron resonance, producing large vacuum Rabi splittings and a rich polaritonic spectrum captured by a full Hopfield model.
Lucy Hale   +6 more
wiley   +1 more source

Dynamics of the Commutator Operator

open access: yes, 2014
Linear dynamics is a rapidly evolving area of operator theory, however the only results related to the dynamics of the commutator operators have hitherto been on the characterisation of the hypercyclicity of the left and right multiplication operators.
Gilmore, Clifford
core  

On commutator socle-regular Abelian p-groups

open access: yes, 2014
We define the notion of a commutator socle-regular Abelian p-group. After establishing some crucial properties of commutator socle-regularity, we investigate its relationship with socle-regularity, strong socle-regularity and projection socle ...
Danchev, Peter, Goldsmith, Brendan
core   +1 more source

Early microglial response to amyloid plaques drives sleep loss in Alzheimer's disease

open access: yesAlzheimer's &Dementia, Volume 22, Issue 6, June 2026.
Abstract INTRODUCTION Sleep disruption is an early feature of Alzheimer's disease (AD), but the cellular mechanisms linking amyloid pathology to sleep loss remain unclear. METHODS Electroencephalography/electromyography (EEG/EMG) recordings, quantitative EEG analysis, and sleep deprivation were performed in APPswe/PSEN1dE9 (APP/PS1) mice at different ...
Nicholas J. Constantino   +9 more
wiley   +1 more source

Relative commutator theory in varieties of Ω-groups

open access: yes, 2007
We introduce a new notion of commutator which depends on a choice of subvariety in any variety of Ω-groups. We prove that this notion encompasses Higgins’s commutator, Fröhlich’s central extensions and the Peiffer commutator of precrossed ...
Everaert, T.
core   +1 more source

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