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GENERAL RELATIVITY AS A THEORY OF TWO CONNECTIONS [PDF]
International Journal of Modern Physics D, 1994 We show in this paper that it is possible to formulate general relativity in a phase space coordinatized by two SO(3) connections. We analyze first the Husain-Kuchař model and find a two connection description for it. Introducing a suitable scalar constraint in this phase space we get a Hamiltonian formulation of gravity that is close to the one given
Barbero, J. Fernando
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Connections between the Sznajd model with general confidence rules and graph theory [PDF]
Physical Review E, 2012 The Sznajd model is a sociophysics model, that is used to model opinion propagation and consensus formation in societies. Its main feature is that its rules favour bigger groups of agreeing people. In a previous work, we generalized the bounded confidence rule in order to model biases and prejudices in discrete opinion models.
Timpanaro, André M. +1 more
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A general theory of avian migratory connectivity [PDF]
Ecology Letters, 2021 Abstract Birds exhibit a remarkable array of seasonal migrations. Despite much research describing migratory behaviour, the underlying forces driving how a species’ breeding and wintering populations redistribute each year, that is, migratory connectivity, remain largely unknown.
Marius Somveille +4 more
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On generalized Berwald manifolds: extremal compatible linear connections, special metrics and low dimensional spaces [PDF]
AUT Journal of Mathematics and Computing, 2021 The notion of generalized Berwald manifolds goes back to V. Wagner [60]. They are Finsler manifolds admitting linear connections on the base manifold such that the parallel transports preserve the Finslerian length of tangent vectors (compatibility ...
Csaba Vincze
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Pure Lorentz spin connection theories and uniqueness of general relativity [PDF]
Classical and Quantum Gravity, 2021 Abstract General relativity (GR) can be reformulated as a diffeomorphism invariant gauge theory of the Lorentz group, with Lagrangian of the type f ( F ∧ F ), where F
Krasnov, Kirill, Mitsou, Ermis
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Stability design of structures with semi-rigid connections [PDF]
Facta Universitatis. Series: Architecture and Civil Engineering, 2010 The paper points out to the differences of the First order theory and Second order theory and of the significance in practical calculations. The paper presents theoretical foundations and expressions of calculations of impacts on the stability of ...
Igić Tomislav +4 more
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A note on the Hamiltonian structure of transgression forms
Journal of High Energy Physics, 2023 By incorporating two gauge connections, transgression forms provide a generalization of Chern-Simons actions that are genuinely gauge-invariant on bounded manifolds.
Pablo Pais +2 more
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A generalized 4d Chern-Simons theory
Journal of High Energy Physics, 2023 A generalization of the 4d Chern-Simons theory action introduced by Costello and Yamazaki is presented. We apply general arguments from symplectic geometry concerning the Hamiltonian action of a symmetry group on the space of gauge connections defined on
David M. Schmidtt
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David Loye, Thank You for “Telling The New Story”
Interdisciplinary Journal of Partnership Studies, 2022 This is an account of a creative hero, whom we shall dearly miss; a scholar, activist, scientist, writer, and creative spirit, who heard the call and took the risks to offer a truth that was eclipsed for 100 years, i.e., “Darwin’s Lost Theory.” This ...
Ruth Richards
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Information geometry in quantum field theory: lessons from simple examples
SciPost Physics, 2020 Motivated by the increasing connections between information theory and high-energy physics, particularly in the context of the AdS/CFT correspondence, we explore the information geometry associated to a variety of simple systems. By studying their Fisher
Johanna Erdmenger, Kevin T. Grosvenor, Ro Jefferson
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