نتایج جستجو برای: symmetry

تعداد نتایج: 85546  

Journal: :Communications in Mathematical Physics 2001

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Journal: :Journal of Vision 2010

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Journal: :Cold Spring Harbor Symposia on Quantitative Biology 2017

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Journal: :Annals of Physics 1983

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1993
Daniel Braun

Exact analytic results for single level current and curvature distribution functions are derived in a framework of a 2×2 random matrix model. Current and curvature are defined as the first and second derivatives of energy with respect to a time–reversal symmetry breaking parameter (magnetic flux). The applicability of the obtained distributions for the spectral statistic of disordered metals is...

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2009
Magnus Ågren Nicolas Beldiceanu Mats Carlsson Mohamed Sbihi Charlotte Truchet Stéphane Zampelli

This paper introduces six ways for handling a chain of lexicographic ordering constraint between the origins of identical orthotopes (e.g., rectangles, boxes, hyper-rectangles) subject to the fact that they should not pairwise overlap. While the first two ways deal with the integration of a chain of lexicographic ordering constraint within a generic geometric constraint kernel, the four latter ...

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2010
George Katsirelos Toby Walsh

Symmetry is an important feature of many constraint programs. We show that any problem symmetry acting on a set of symmetry breaking constraints can be used to break symmetry. Different symmetries pick out different solutions in each symmetry class. This simple but powerful idea can be used in a number of different ways. We describe one application within model restarts, a search technique desi...

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Journal: :Computers & Mathematics with Applications 1986

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Journal: :Physical Review D 2020

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Journal: :Journal of Physics: Conference Series 2008

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