Results 31 to 40 of about 16,757 (142)

WIMPs without weakness: Generalized mass window with entropy injection

open access: yesPhysical Review D, 2022
We study general freeze-out scenarios where an arbitrary number of initial and final dark matter particles participate in the number-changing freeze-out interaction. We consider a simple sector with two particle species undergoing such a thermal freeze-out; one of the relics is stable and gives rise to the dark matter today, while the other one decays ...
Pouya Asadi   +2 more
openaire   +2 more sources

Mechanisms underlying the impacts of reservoir pore structures on near-well salt precipitation in CO2 geological storage

open access: yesMeitian dizhi yu kantan
Objective and Method High CO2 injectivity in reservoirs is essential for high-quality sites of CO2 geological storage (CGS). Salt precipitation in the vicinity of injection wells due to brine dissolution in CO2 emerges as a critical factor impairing CO2 ...
Chenguang DENG   +5 more
doaj   +1 more source

Local densities, distribution functions, and wave function correlations for spatially resolved shot noise at nanocontacts

open access: yes, 1999
We consider a current-carrying, phase-coherent multi-probe conductor to which a small tunneling contact is attached. We treat the conductor and the tunneling contact as a phase-coherent entity and use a Green's function formulation of the scattering ...
B.G. Briner   +50 more
core   +2 more sources

Homological Properties of Modules with Finite Weak Injective and Weak Flat Dimensions [PDF]

open access: yesBulletin of the Malaysian Mathematical Sciences Society, 2016
Published online in the journal of Bulletin of the Malaysian Mathematical Sciences Society, 09 april ...
openaire   +3 more sources

Gorenstein \(n\)-weak injective and Gorenstein \(n\)-weak flat modules under excellent extensions

open access: yesJournal of Mahani Mathematical Research, 2023
Summary: Let \(R\) be an associative ring and let \(n\) be a non-negative integer. In this paper, we consider \(n\)-super finitely presented, Gorenstein \(n\)-weak injective and Gorenstein \(n\)-weak flat modules under change of rings. For an excellent extension \(S\geq R\), we show that the Gorenstein \(n\)-super finitely presented dimensions (resp ...
openaire   +3 more sources

Locally Purified Density Operators for Symmetry-Protected Topological Phases in Mixed States

open access: yesPhysical Review X
We propose a tensor network approach known as the locally purified density operator (LPDO) to investigate the classification and characterization of symmetry-protected topological phases in open quantum systems.
Yuchen Guo   +4 more
doaj   +1 more source

Dual Banach algebras: Connes-amenability, normal, virtual diagonals, and injectivity of the predual bimodule

open access: yes, 2003
Let $A$ be a dual Banach algebra with predual $A_\ast$ and consider the following assertions: (A) $A$ is Connes-amenable; (B) $A$ has a normal, virtual diagonal; (C) $A_\ast$ is an injective $A$-bimodule.
Runde, Volker
core   +6 more sources

Inner amenability and approximation properties of locally compact quantum groups

open access: yes, 2018
We introduce an appropriate notion of inner amenability for locally compact quantum groups, study its basic properties, related notions, and examples arising from the bicrossed product construction.
Crann, Jason
core   +1 more source

Study on the Adaptability of Drag-Increasing In-Situ Gel Profile Control Agent in Bohai Offshore Oilfield

open access: yesShiyou huagong gaodeng xuexiao xuebao
To ensure the effect of several rounds of profile control in Bohai oilfield, the adaptability of a drag-increasing in-situ gel profile control agent was investigated specifically in the study.
Changting PANG   +5 more
doaj   +1 more source

A short note on the weak Lefschetz property for Chow groups

open access: yes, 2015
Motivated by the Bloch-Beilinson conjectures, we formulate a certain covariant weak Lefschetz property for Chow groups. We prove this property in some special cases, using Kimura's nilpotence theorem.Comment: 9 pages. Comments welcome !
Laterveer, Robert
core   +2 more sources

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