Results 1 to 10 of about 6,950 (285)

Modeling angiogenesis under Robin boundary conditions [PDF]

open access: yesQuantitative Biology
In this study, we show an example of a numerical model based on the Keller–Segel system of equations to simulate angiogenesis in response to chemotaxis under Robin boundary conditions, which represent the presence of flux at the tumor.
Pablo Álvarez‐Caudevilla   +2 more
doaj   +5 more sources

Straight Quantum Waveguide with Robin Boundary Conditions [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2007
We investigate spectral properties of a quantum particle confined to an infinite straight planar strip by imposing Robin boundary conditions with variable coupling.
Martin Jílek
doaj   +11 more sources

The Bilaplacian with Robin Boundary Conditions [PDF]

open access: yesSIAM Journal on Mathematical Analysis, 2022
We introduce Robin boundary conditions for biharmonic operators, which are a model for elastically supported plates and are closely related to the study of spaces of traces of Sobolev functions. We study the dependence of the operator, its eigenvalues, and eigenfunctions on the Robin parameters. We show in particular that when the parameters go to plus
Davide Buoso, James B. Kennedy
openaire   +7 more sources

Penalization of Robin boundary conditions [PDF]

open access: yesApplied Numerical Mathematics, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bensiali, Bouchra   +2 more
openaire   +4 more sources

Conformable advection-dispersion models for radioactive waste migration: Robin-type condition and moment analysis [PDF]

open access: yesScientific Reports
Within the framework of the conformable fractional-order derivative, conformable advection-dispersion models (CADMs) with Robin-type boundary conditions and different source terms are proposed to describe radioactive waste migration. Analytical solutions
Qing Wei, Shuai Yang, Senlin Xie
doaj   +2 more sources

No-Boundary Proposal as a Path Integral with Robin Boundary Conditions [PDF]

open access: yesPhysical Review Letters, 2019
Realising the no-boundary proposal of Hartle and Hawking as a consistent gravitational path integral has been a long-standing puzzle. In particular, it was demonstrated by Feldbrugge et al. that the sum over all universes starting from zero size results in an unstable saddle point geometry.
Di Tucci, Alice, Lehners, Jean-Luc
openaire   +7 more sources

Particle creation by a moving boundary with a Robin boundary condition [PDF]

open access: yesJournal of Physics A: Mathematical and General, 2006
We consider a massless scalar field in 1+1 dimensions satisfying a Robin boundary condition (BC) at a non-relativistic moving boundary. We derive a Bogoliubov transformation between input and output bosonic field operators, which allows us to calculate the spectral distribution of created particles. The cases of Dirichlet and Neumann BC may be obtained
Mintz, B.   +3 more
openaire   +2 more sources

Local Error Estimate of an L1-Finite Difference Scheme for the Multiterm Two-Dimensional Time-Fractional Reaction–Diffusion Equation with Robin Boundary Conditions

open access: yesFractal and Fractional, 2023
In this paper, the numerical method for a multiterm time-fractional reaction–diffusion equation with classical Robin boundary conditions is considered. The full discrete scheme is constructed with the L1-finite difference method, which entails using the ...
Jian Hou   +4 more
doaj   +1 more source

The Obata equation with Robin boundary condition [PDF]

open access: yesRevista Matemática Iberoamericana, 2020
We study the Obata equation with Robin boundary condition \partial f/\partial \nu + af = 0 on manifolds with boundary, where a is a non-zero constant.
Chen, Xuezhang, Lai, Mijia, Wang, Fang
openaire   +3 more sources

Solving Lane–Emden equations with boundary conditions of various types using high-order compact finite differences

open access: yesApplied Mathematics in Science and Engineering, 2023
In this study, a high-order compact finite difference method is used to solve Lane–Emden equations with various boundary conditions. The norm is to use a first-order finite difference scheme to approximate Neumann and Robin boundary conditions, but that ...
James Malele   +2 more
doaj   +1 more source

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