[图书][B] Handbook of differential equations

D Zwillinger, V Dobrushkin - 2021 - api.taylorfrancis.com
Through the previous three editions, Handbook of Differential Equations has proven an
invaluable reference for anyone working within the field of mathematics, including …

Rigorous analysis of the unified transform method and long-range instabilities for the inhomogeneous time-dependent Schrödinger equation on the quarter-plane

A Chatziafratis, T Ozawa, SF Tian - Mathematische Annalen, 2024 - Springer
In this paper, we report on the discovery of a previously-unknown type of long-range
instability phenomenon for the one-dimensional linear Schrödinger (LS) equation on the …

Extended water wave systems of Boussinesq equations on a finite interval: Theory and numerical analysis

D Mantzavinos, D Mitsotakis - Journal de Mathématiques Pures et …, 2023 - Elsevier
Considered here is a class of Boussinesq systems of Nwogu type. Such systems describe
propagation of nonlinear and dispersive water waves of significant interest such as solitary …

Integral representations for the double-diffusivity system on the half-line

A Chatziafratis, EC Aifantis, A Carbery… - Zeitschrift für angewandte …, 2024 - Springer
A novel method is presented for explicitly solving inhomogeneous initial-boundary-value
problems (IBVPs) on the half-line for a well-known coupled system of evolution partial …

Accurate solution method for the Maxey–Riley equation, and the effects of Basset history

SG Prasath, V Vasan, R Govindarajan - Journal of Fluid Mechanics, 2019 - cambridge.org
The Maxey–Riley equation has been extensively used by the fluid dynamics community to
study the dynamics of small inertial particles in fluid flow. However, most often, the Basset …

Extensions of the d'Alembert formulae to the half line and the finite interval obtained via the unified transform

AS Fokas, K Kalimeris - IMA Journal of Applied Mathematics, 2022 - academic.oup.com
We derive the solution of the one-dimensional wave equation for the Dirichlet and Robin
initial-boundary value problems (IBVPs) formulated on the half line and the finite interval …

The unified transform for evolution equations on the half‐line with time‐periodic boundary conditions

AS Fokas, MC van der Weele - Studies in Applied Mathematics, 2021 - Wiley Online Library
This paper elaborates on a new approach for solving the generalized Dirichlet‐to‐Neumann
map, in the large time limit, for linear evolution PDEs formulated on the half‐line with time …

Numerical computation of Neumann controls for the heat equation on a finite interval

K Kalimeris, T Özsarı, N Dikaios - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
This article presents a new numerical method, which approximates Neumann type null
controls for the heat equation and is based on the Fokas method. This is a direct method for …

Fokas diagonalization of piecewise constant coefficient linear differential operators on finite intervals and networks

S Aitzhan, S Bhandari, DA Smith - Acta applicandae mathematicae, 2022 - Springer
We describe a new form of diagonalization for linear two point constant coefficient
differential operators with arbitrary linear boundary conditions. Although the diagonalization …

[PDF][PDF] Long-Range Instability of Linear Evolution PDE on Semi-Bounded Domains via the Fokas Method

A Chatziafratis, L Grafakos, S Kamvissis - Dynamics of PDE, 2024 - users.math.uoc.gr
We study the inhomogeneous Airy partial differential equation (also called Stokes or
linearized Korteweg-de Vries equation with a negative sign) on the half-line with generic …