Results 31 to 40 of about 13,952 (268)
Physical Review E, 2016 When studying thermalization of quantum systems, it is typical to ask whether a system interacting with an environment will evolve towards a local thermal state. Here, we show that a more general and relevant question is "when does a system thermalize relative to a particular reference?" By relative thermalization we mean that, as well as being in a ...
Lídia del Rio +3 more
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What Would a Tree Say About Its Size?
Frontiers in Ecology and Evolution, 2021 When developing theories, designing studies, and interpreting the results, researchers are influenced by their perception of tree size. For example, we may compare two trees of the same size belonging to different species, and attribute any differences ...
Markku Larjavaara
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THEORETICAL AND PRACTICAL ASPECTS REGARDING THIRD PARTIES IN THE LIGHT OF CONTRACTS’ EFFECTS RELATIVITY PRINCIPLE [PDF]
Economica, 2021 The contract is the subject of civil law that creates the basic entity of the national and international economy, and the contracting process is the most important stage in economic affairs in general. Naturally producing effects between the parties,
Ludmila BELIBAN-RAȚOI
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Relative and modified relative realizability
Annals of Pure and Applied Logic, 2002 The notion of relative realizability, originally due to Kleene and Vesley, has recently been studied in topos-theoretic terms by the first author of this paper together with \textit{S. Awodey} and \textit{D. S. Scott} [``Local realizability toposes and a modal logic for computability'', Math. Struct. Comput. Sci.
Lars Birkedal, Jaap van Oosten
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Functorial Evolution of Quantum Fields
Frontiers in Physics, 2021 We present a compositional algebraic framework to describe the evolution of quantum fields in discretised spacetimes. We show how familiar notions from Relativity and quantum causality can be recovered in a purely order-theoretic way from the causal ...
Stefano Gogioso +2 more
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The relativity of relative risks: disadvantage or opportunity? [PDF]
British Journal of Psychiatry, 2003 Psychiatric epidemiologists use many tools, such as relative risks and the related odds ratios, that were developed to study chronic somatic disease. Cancer epidemiologists identify as a major advantage of relative risks that, when appropriately adjusted for confounding and effect modification ...
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Relativity without relativity [PDF]
Classical and Quantum Gravity, 2002 We give a derivation of general relativity and the gauge principle that is novel in presupposing neither spacetime nor the relativity principle. We consider a class of actions defined on superspace with two key properties. The first is 3-coordinate invariance. This is the only postulated symmetry, and it leads to the standard momentum constraint.
Barbour, Julian +2 more
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Relative torsion classes, relative tilting, and relative silting modules
Communications in Algebra, 2021 Let $Λ$ be an Artin algebra. In 2014, T. Adachi, O. Iyama and I. Reiten proved that the torsion funtorially finite classes in $\mathrm{mod}\,(Λ)$ can be described by the $τ$-tilting theory. The aim of this paper is to introduce the notion of $F$-torsion class in $\mathrm{mod}\,(Λ)$, where $F$ is an additive subfunctor of $\mathrm{Ext}^1_Λ,$ and to ...
Luis Armando Martínez González +1 more
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Strong-Coupled Relativity Without Relativity [PDF]
General Relativity and Gravitation, 2004 GR can be interpreted as a theory of evolving 3-geometries. A recent such formulation, the 3-space approach of Barbour, Foster and Ó Murchadha, also permits the construction of a limited number of other theories of evolving 3-geometries, including conformal gravity and strong gravity.
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Einstein Geometrization Philosophy and Differential Identities in PAP-Geometry
Advances in Mathematical Physics, 2016 The importance of Einstein’s geometrization philosophy, as an alternative to the least action principle, in constructing general relativity (GR), is illuminated. The role of differential identities in this philosophy is clarified.
M. I. Wanas +3 more
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