Results 301 to 310 of about 1,013,154 (346)
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Rotation symmetry breaking in the normal state of a kagome superconductor KV3Sb5
Nature Physics, 2021Recently discovered superconductors AV3Sb5 (A = K, Rb, Cs)1,2 provide a fresh opportunity to study correlation-driven electronic phenomena on a kagome lattice. The observation of an unusual charge density wave (CDW) in the normal state of all the members
Hong Li +8 more
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Topological symmetry in quantum field theory
Quantum Topology, 2022We introduce a definition and framework for internal topological symmetries in quantum field theory, including “noninvertible symmetries” and “categorical symmetries”.
D. Freed, G. Moore, C. Teleman
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2008
Scarcely any term connects art and science more closely than symmetry. This was already a theme in ancient times, as is found in Vitruvius, for example. On the beach of an unknown island, a shipwrecked traveler finds neatly arranged geometric figures. Can he conclude from this that there is an intelligent creator (perhaps even a god)?
Erwin Chargaff +9 more
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Scarcely any term connects art and science more closely than symmetry. This was already a theme in ancient times, as is found in Vitruvius, for example. On the beach of an unknown island, a shipwrecked traveler finds neatly arranged geometric figures. Can he conclude from this that there is an intelligent creator (perhaps even a god)?
Erwin Chargaff +9 more
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Erkenntnis, 2010
This paper can be seen as a call to arms to better understand the influence of symmetry in inductive logic as a source of principles a rational agent should adhere to. It is in spirit very closely related to [J. Philos. Log. 40, No. 3, 357--370 (2011; Zbl 1223.03014)], where the authors investigate (ir-)relevance as source of rationality principles ...
Paris, J. B., Vencovská, A.
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This paper can be seen as a call to arms to better understand the influence of symmetry in inductive logic as a source of principles a rational agent should adhere to. It is in spirit very closely related to [J. Philos. Log. 40, No. 3, 357--370 (2011; Zbl 1223.03014)], where the authors investigate (ir-)relevance as source of rationality principles ...
Paris, J. B., Vencovská, A.
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Acta Applicandae Mathematica, 2001
This paper is the new section 5 of the author's paper ``Affine connection complexes'', which appeared ibid. 59, 215-227 (1999; Zbl 0956.53014). Here is given the proof of Proposition 5.4.: The Riemannian curvature tensor \(R(g)\in\otimes^4\varepsilon\) of any Riemannian manifold \((M,g)\) is a symmetric element of the submodule \(A^2\varepsilon\otimes ...
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This paper is the new section 5 of the author's paper ``Affine connection complexes'', which appeared ibid. 59, 215-227 (1999; Zbl 0956.53014). Here is given the proof of Proposition 5.4.: The Riemannian curvature tensor \(R(g)\in\otimes^4\varepsilon\) of any Riemannian manifold \((M,g)\) is a symmetric element of the submodule \(A^2\varepsilon\otimes ...
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Symmetries I: Continuous Symmetries
2011The concept of symmetry is paramount in modern Physics. In this chapter we are going to deal with the implementation of symmetries in quantum field theory. After reviewing the relation between continuous symmetries and conservations laws, we study how symmetries are realized quantum mechanically and in which way different realizations reflect in the ...
Luis Álvarez-Gaumé +1 more
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2007
Abstract Schur’s lemmas play a fundamental role in the analysis of the representations of groups and algebras. They are powerful tools for the construction of a complete set of irreducible representations of any group. We exploit the first of Schur ‘s lemmas to detem1ine the most general form that a dynamical system in JR.N can have if ...
Robert Gilmore, Christophe Letellier
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Abstract Schur’s lemmas play a fundamental role in the analysis of the representations of groups and algebras. They are powerful tools for the construction of a complete set of irreducible representations of any group. We exploit the first of Schur ‘s lemmas to detem1ine the most general form that a dynamical system in JR.N can have if ...
Robert Gilmore, Christophe Letellier
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Journal of Electron Microscopy Technique, 1989
AbstractThe crystal point‐ and space‐group determination method using convergent‐beam electron diffraction (CBED) is reviewed. Crystal symmetry elements that can be observed by CBED are discussed.
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AbstractThe crystal point‐ and space‐group determination method using convergent‐beam electron diffraction (CBED) is reviewed. Crystal symmetry elements that can be observed by CBED are discussed.
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The American mathematical monthly, 2000
The word "symmetry" is used in mathematics quite differently from in ordinary speech. In everyday life one applies it mainly to two-sided, right-left symmetry; but not so in mathematics.
J. Tits, J. Stillwell
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The word "symmetry" is used in mathematics quite differently from in ordinary speech. In everyday life one applies it mainly to two-sided, right-left symmetry; but not so in mathematics.
J. Tits, J. Stillwell
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Anti–parity-time symmetry in diffusive systems
Science, 2019Making heat stand still Dissipative oscillating systems (waves) can be described mathematically in terms of non-Hermitian physics. When parity-time symmetric systems have dissipative components, the interplay between gain and loss can lead to unusual and
Ying Li +10 more
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