Results 11 to 20 of about 41,784 (281)

Hyperbolic three-string vertex

open access: yesJournal of High Energy Physics, 2021
We begin developing tools to compute off-shell string amplitudes with the recently proposed hyperbolic string vertices of Costello and Zwiebach. Exploiting the relation between a boundary value problem for Liouville’s equation and a monodromy problem for
Atakan Hilmi Fırat
doaj   +1 more source

Convergence of fully discrete schemes for diffusive dispersive conservation laws with discontinuous coefficient [PDF]

open access: yes, 2015
We are concerned with fully-discrete schemes for the numerical approximation of diffusive-dispersive hyperbolic conservation laws with a discontinuous flux function in one-space dimension. More precisely, we show the convergence of approximate solutions,
Dutta, Rajib, Koley, Ujjwal, Ray, Deep
core   +2 more sources

High-Order Accurate Flux-Splitting Scheme for Conservation Laws with Discontinuous Flux Function in Space

open access: yesMathematics, 2021
A new modified Engquist–Osher-type flux-splitting scheme is proposed to approximate the scalar conservation laws with discontinuous flux function in space. The fact that the discontinuity of the fluxes in space results in the jump of the unknown function
Tingting Xiang   +2 more
doaj   +1 more source

Adaptive symmetric flux limiters with long computation times for hyperbolic conservation laws

open access: yesResults in Applied Mathematics, 2023
The construction of the limiter is a critical factor in the traditional Total Variation Diminishing (TVD) scheme. Among the classical limiters, superbee has the lowest numerical dissipation, but it can lead to over-compression in smooth regions and ...
Shujiang Tang
doaj   +1 more source

Applications of the DFLU flux to systems of conservation laws [PDF]

open access: yes, 2009
The DFLU numerical flux was introduced in order to solve hyperbolic scalar conservation laws with a flux function discontinuous in space. We show how this flux can be used to solve systems of conservation laws.
Adimurthi   +39 more
core   +8 more sources

Design of optical surfaces conform the hyperbolic Monge-Ampère equation [PDF]

open access: yesEPJ Web of Conferences, 2022
We present a method for designing freeform optical surfaces for illumination optics. By the laws of reflection, refraction and conservation of energy, a fully nonlinear PDE, the Monge-Ampere equation, is derived for the optical surface.
Bertens M.W.M.C.   +3 more
doaj   +1 more source

Nonoscillatory Central Schemes for Hyperbolic Systems of Conservation Laws in Three-Space Dimensions

open access: yesThe Scientific World Journal, 2013
We extend a family of high-resolution, semidiscrete central schemes for hyperbolic systems of conservation laws to three-space dimensions. Details of the schemes, their implementation, and properties are presented together with results from several ...
Andrew N. Guarendi, Abhilash J. Chandy
doaj   +1 more source

A fourth-order entropy condition scheme for systems of hyperbolic conservation laws

open access: yesEngineering Applications of Computational Fluid Mechanics, 2021
Based on the analysis of the entropy condition scheme formulation, the accuracy order comes from initial value interpolation and flux reconstruction.
Tong Zhou, Haitao Dong
doaj   +1 more source

SIAC Filtering for Nonlinear Hyperbolic Equations [PDF]

open access: yes, 2015
We present the results of the symmetric and one-sided Smoothness-Increasing Accuracy-Conserving (SIAC) filter applied to a discontinuous Galerkin (DG) approximation for two examples of nonlinear hyperbolic conservation laws.
Li, Xiaozhou, Ryan, Jennifer
core   +1 more source

Conservation laws for a viscoelastic medium

open access: yesAtti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2019
In this paper we consider a first order quasilinear non homogenoeus hyperbolic system describing viscoelastic processes. A full classification of first order local conservation laws admitted by such a rate-type model has been given.
Natale Manganaro
doaj   +1 more source

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