Results 31 to 40 of about 1,857,063 (382)

Generalized Hausdorff Operators on K̇α,qβ,pℝ and HK̇α,qβ,p,Nℝ in the Dunkl Settings

open access: yesJournal of Function Spaces, 2021
In the present paper, we obtain some new results, and we generalize some known results for the Hausdorff operators. We have studied the generalized Hausdorff operators Hα,φ on the Dunkl-type homogeneous weighted Herz spaces K̇α,qβ,pℝ and Dunkl Herz-type ...
Faouaz Saadi, Othman Tyr, Radouan Daher
doaj   +1 more source

Topology optimization of multi-scale structures: a review

open access: yesStructural And Multidisciplinary Optimization, 2021
Multi-scale structures, as found in nature (e.g., bone and bamboo), hold the promise of achieving superior performance while being intrinsically lightweight, robust, and multi-functional.
Jun Wu, O. Sigmund, J. Groen
semanticscholar   +1 more source

Topological sound [PDF]

open access: yesCommunications Physics, 2018
AbstractRecently, we witnessed a tremendous effort to conquer the realm of acoustics as a possible playground to test with topologically protected sound wave propagation. In this article, we review the latest efforts to explore with sound waves topological states of quantum matter in two- and three-dimensional systems where we discuss how spin and ...
Xiujuan Zhang   +4 more
openaire   +4 more sources

Gerty Cori, a Life Dedicated to Chemical and Medical Research

open access: yesFoundations, 2023
This article shows the life and work of Gerty Cori, a woman born in Czechoslovakia and who later became a naturalized American, who spent her whole life researching, together with her husband, in the laboratory to find the cause of some diseases ...
Juan Núñez Valdés
doaj   +1 more source

Higher-order band topology [PDF]

open access: yesNature Reviews Physics, 2020
A conventional topological insulator (TI) has gapped bulk states but gapless edge states. The emergence of the gapless edge states is dictated by the bulk topological invariant of the insulator and the preservation of relevant symmetries.
Biye Xie   +6 more
semanticscholar   +1 more source

Topologies on Types [PDF]

open access: yesSSRN Electronic Journal, 2005
We define and analyze strategic topologies on types, under which two types are close if their strategic behavior will be similar in all strategic situations. To operationalize this idea, we adopt interim rationalizability as our solution concept, and define a metric topology on types in the Harsanyi-Mertens-Zamir universal type space.
Stephen Morris   +3 more
openaire   +7 more sources

Symmetry and Topology in Non-Hermitian Physics [PDF]

open access: yesPhysical Review X, 2018
We develop a complete theory of symmetry and topology in non-Hermitian physics. We demonstrate that non-Hermiticity ramifies the celebrated Altland-Zirnbauer symmetry classification for insulators and superconductors. In particular, charge conjugation is
K. Kawabata   +3 more
semanticscholar   +1 more source

Topological—anti-topological fusion [PDF]

open access: yesNuclear Physics B, 1991
Abstract We study some non-perturbative aspects of N = 2 supersymmetric quantum field theories (both superconformal and massive deformations thereof). We show that the metric for the supersymmetric ground states, which in the conformal limit is essentially the same as Zamolodchikov's metric, is pseudo-topological and can be viewed as a result of ...
Cecotti, Sergio, VAFA C.
openaire   +4 more sources

Composite Topological Objects in Topological Superfluids [PDF]

open access: yesJournal of Experimental and Theoretical Physics, 2020
Superfluid phases of $^3$He discovered in 1972 opened the new area of the application of topological methods to condensed matter systems. Due to the multi-component order parameter which characterizes the broken $SO(3)\times SO(3)\times U(1)$ symmetry in these phases, there are many inhomogeneous objects -- textures and defects in the order parameter ...
Grigory Volovik, Grigory Volovik
openaire   +4 more sources

Consensus problems in networks of agents with switching topology and time-delays

open access: yesIEEE Transactions on Automatic Control, 2004
In this paper, we discuss consensus problems for networks of dynamic agents with fixed and switching topologies. We analyze three cases: 1) directed networks with fixed topology; 2) directed networks with switching topology; and 3) undirected networks ...
R. Olfati-Saber, R. Murray
semanticscholar   +1 more source

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