Results 11 to 20 of about 122,446 (305)

The Multivariate Theory of Functional Connections: Theory, Proofs, and Application in Partial Differential Equations

open access: yesMathematics, 2020
This article presents a reformulation of the Theory of Functional Connections: a general methodology for functional interpolation that can embed a set of user-specified linear constraints. The reformulation presented in this paper exploits the underlying
Carl Leake   +2 more
doaj   +4 more sources

Abelian Chern–Simons theory, Stokes’ theorem, and generalized connections

open access: yesJournal of Geometry and Physics, 2012
Generalized connections and their calculus have been developed in the context of quantum gravity. Here we apply them to abelian Chern-Simons theory. We derive the expectation values of holonomies in U(1) Chern-Simons theory using Stokes' theorem, flux operators and generalized connections. A framing of the holonomy loops arises in our construction, and
Hanno Sahlmann
exaly   +4 more sources

THE APPLICATION OF GENERAL THEORY OF ROOT TRAJECTORIES METHODS IN RESEARCH OF MULTI-CHANNEL CONTROL SYSTEM WITH CROSS-CONNECTIONS

open access: yesInformatika, 2017
Computer aided research method on the basis of general theory of root trajectories is considered in the frame of study of multi-channel control systems with varying parameters included as cofactors with arbitrary exponents in coefficients of the ...
V. V. Tkachenko
doaj   +1 more source

A general theory of avian migratory connectivity [PDF]

open access: yesEcology 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
openaire   +5 more sources

On generalized Berwald manifolds: extremal compatible linear connections, special metrics and low dimensional spaces [PDF]

open access: yesAUT 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
doaj   +1 more source

Stability design of structures with semi-rigid connections [PDF]

open access: yesFacta 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
doaj   +1 more source

A note on the Hamiltonian structure of transgression forms

open access: yesJournal 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
doaj   +1 more source

A generalized 4d Chern-Simons theory

open access: yesJournal 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
doaj   +1 more source

David Loye, Thank You for “Telling The New Story”

open access: yesInterdisciplinary 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
doaj   +1 more source

Information geometry in quantum field theory: lessons from simple examples

open access: yesSciPost 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
doaj   +1 more source

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