Results 1 to 10 of about 1,758,752 (301)
Relating the thermodynamic arrow of time to the causal arrow [PDF]
Journal of Statistical Mechanics: Theory and Experiment, 2007 Consider a Hamiltonian system that consists of a slow subsystem S and a fast subsystem F. The autonomous dynamics of S is driven by an effective Hamiltonian, but its thermodynamics is unexpected.
Armen E Allahverdyan +30 more
core +5 more sources
The direction of time: from the global arrow to the local arrow [PDF]
Int.J.Theor.Phys.42:2487-2504,2003, 2003 In this paper we discuss the traditional approaches to the problem of the arrow of time. On the basis of this discussion we adopt a global and non-entropic approach, according to which the arrow of time has a global origin and is an intrinsic, geometrical feature of space-time.
Castagnino, Mario +2 more
arxiv +3 more sources
Information and Computation 275: 104544 (2020), 2018 In this contribution we present arbitrary arrow update model logic (AAUML). This is a dynamic epistemic logic or update logic. In update logics, static/basic modalities are interpreted on a given relational model whereas dynamic/update modalities induce transformations (updates) of relational models.
van Ditmarsch, Hans +3 more
arxiv +10 more sources
, 2011 We introduce an additional structure on ribbon graphs, arrow structure. We extend the Bollob\'as-Riordan polynomial to ribbon graph with this structure. The extended polynomial satisfies the contraction-deletion relations and naturally behaves with respect to the partial duality of ribbon graphs.
Chmutov S. +5 more
arxiv +3 more sources
Arrow Contraction and Expansion in Tropical Diagrams [PDF]
arXiv, 2019 Arrow contraction applied to a tropical diagram of probability spaces is a modification of the diagram, replacing one of the morphisms by an isomorphims, while preserving other parts of the diagram. It is related to the rate regions introduced by Ahlswede and K\"orner.
Matveev, Rostislav +1 more
arxiv +5 more sources
The Astrophysical Journal, 1976 A model of the universe which resolves the apparent contradiction between the historical and the thermodynamic arrows of time is presented. Both arrows are reconciled with the almost time-symmetric character of physical laws at the microscopic level. The theory implies that the universe is unfolding in time but not unraveling. (BJG)
David Layzer
openalex +4 more sources
EURASIP Journal on Information Security, 2008 This paper makes an account of the design and investigations done for the still image watermarking technique used in the 2nd edition of the BOWS challenge. This technique is named "broken arrows" for some reasons given later on, and abbreviated "BA." This zero-bit algorithm is an implementation of a recent theoretical result by Merhav and Sabbag (2008)
Furon, Teddy, Bas, Patrick
openaire +5 more sources
Clinical Practice and Cases in Emergency Medicine, 2019 A 33-year-old male was brought to the emergency department after a penetrating arrow injury to the chest. Initial evaluation revealed the arrow was penetrating the sternum, lung, and aortic arch. Because the patient was in a remote area, timely transfer to a specialized center for definitive operative repair was delayed approximately 24 hours ...
Wangdi, Sherab +2 more
openaire +4 more sources
Compositional Game Theory, Compositionally [PDF]
EPTCS 333, 2021, pp. 198-214, 2021 We present a new compositional approach to compositional game theory (CGT) based upon Arrows, a concept originally from functional programming, closely related to Tambara modules, and operators to build new Arrows from old. We model equilibria as a bimodule over an Arrow and define an operator to build a new Arrow from such a bimodule over an existing ...
arxiv +1 more source