The exponentially convergent trapezoidal rule

LN Trefethen, JAC Weideman - SIAM review, 2014 - SIAM
It is well known that the trapezoidal rule converges geometrically when applied to analytic
functions on periodic intervals or the real line. The mathematics and history of this …

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 …

A numerical implementation of Fokas boundary integral approach: Laplace's equation on a polygonal domain

B Fornberg, N Flyer - Proceedings of the Royal Society A …, 2011 - royalsocietypublishing.org
A recently discovered transform approach allows a large class of PDEs to be solved in terms
of boundary and/or contour integrals. We introduce here a spectrally accurate numerical …

On the Fokas method for the solution of elliptic problems in both convex and non-convex polygonal domains

MJ Colbrook, N Flyer, B Fornberg - Journal of Computational Physics, 2018 - Elsevier
There exists a growing literature on using the Fokas method (unified transform method) to
solve Laplace and Helmholtz problems on convex polygonal domains. We show here that …

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 …

A hybrid analytical-numerical technique for elliptic PDEs

MJ Colbrook, TS Fokas, P Hashemzadeh - SIAM Journal on Scientific …, 2019 - SIAM
Recent work has given rise to a novel and simple numerical technique for solving elliptic
boundary value problems formulated in convex polygons in two dimensions. The method …

[PDF][PDF] The semi analytics iterative method for solving Newell-Whitehead-Segel equation

B Latif, MS Selamat, AN Rosli, AI Yusoff… - Mathematics and …, 2020 - academia.edu
Abstract Newell-Whitehead-Segel (NWS) equation is a nonlinear partial differential equation
used in modeling various phenomena arising in fluid mechanics. In recent years, various …

A numerical technique for linear elliptic partial differential equations in polygonal domains

P Hashemzadeh, AS Fokas… - Proceedings of the …, 2015 - royalsocietypublishing.org
Integral representations for the solution of linear elliptic partial differential equations (PDEs)
can be obtained using Green's theorem. However, these representations involve both the …

Extending the unified transform: curvilinear polygons and variable coefficient PDEs

MJ Colbrook - IMA Journal of Numerical Analysis, 2020 - academic.oup.com
We provide the first significant extension of the unified transform (also known as the Fokas
method) applied to elliptic boundary value problems, namely, we extend the method to …

The linearized classical Boussinesq system on the half‐line

CM Johnston, CT Gartman… - Studies in Applied …, 2021 - Wiley Online Library
The linearization of the classical Boussinesq system is solved explicitly in the case of
nonzero boundary conditions on the half‐line. The analysis relies on the unified transform …