English
Related papers

Related papers: A boundary integral method for the general conjuga…

200 papers

With no criteria of the index type, it is proved the existence of a solution for the Riemann-Hilbert problem in the fairly general setting of arbitrary Jordan domains, measurable coefficients and measurable boundary data. The theorem is…

Complex Variables · Mathematics 2014-02-12 Vladimir Ryazanov

In this paper we consider a Robin problem for the Klein-Gordon equation in a doubly connected domain. The solution domain considered is a bounded smooth doubly connected planar domain bounded by two simple disjoint closed curves. The…

Numerical Analysis · Mathematics 2017-03-02 Myroslav Kryven

We study numerical computation of several conformal invariants of simply connected domains in the complex plane including, the hyperbolic distance, the reduced modulus, the harmonic measure, and the modulus of a quadrilateral. The method we…

Complex Variables · Mathematics 2020-01-29 Mohamed M S Nasser , Matti Vuorinen

A new transform pair which can be used to solve mixed boundary value problems for Laplace's equation and the complex Helmholtz equation in bounded convex planar domains is presented. This work is an extension of Crowdy (2015, CMFT, 15,…

Complex Variables · Mathematics 2023-12-04 Jesse Hulse , Loredana Lanzani , Stefan Llewellyn Smith , Elena Luca

We review the integrable structure of the Dirichlet boundary problem in two dimensions. The solution to the Dirichlet boundary problem for simply-connected case is given through a quasiclassical tau-function, which satisfies the Hirota…

High Energy Physics - Theory · Physics 2007-05-23 A. Marshakov , A. Zabrodin

We develop a generalized hybrid iterative approach for computing solutions to large-scale Bayesian inverse problems. We consider a hybrid algorithm based on the generalized Golub-Kahan bidiagonalization for computing Tikhonov regularized…

Numerical Analysis · Mathematics 2021-11-25 Julianne Chung , Arvind K. Saibaba

One way to generalize the boundary Yamabe problem posed by Escobar is to ask if a given metric on a compact manifold with boundary can be conformally deformed to have vanishing $\sigma_k$-curvature in the interior and constant…

Differential Geometry · Mathematics 2018-09-05 Jeffrey S. Case , Ana Claudia Moreira , Yi Wang

We show that arbitrary homeomorphic solutions to the Beltrami equations with generalized derivatives satisfy certain moduli inequalities. On this basis, we develope the theory of the boundary behavior of such solutions and prove a series of…

Complex Variables · Mathematics 2012-01-27 Denis Kovtonyuk , Igor Petkov , Vladimir Ryazanov , Ruslan Salimov

The conjugate function method is an algorithm for numerical computation of conformal mappings for simply and multiply connected domains. In this paper, the conjugate function method is extended to cover conformal mappings between Riemannian…

Numerical Analysis · Mathematics 2024-04-22 Harri Hakula , Antti Rasila

In this note, we find an equivalent boundary integral equation to the classical $\bar{\partial}$-Neumann problem. The new equation contains an equivalent regularity to the global regularity of the $\bar{\partial}$-Neumann problem. We also…

Complex Variables · Mathematics 2022-08-01 Bingyuan Liu

We present an algorithm for characterising the generalised Dirichlet to Neumann map for moving initial-boundary value problems. This algorithm is derived by combining the so-called global relation, which couples the initial and boundary…

Mathematical Physics · Physics 2009-11-11 A. S. Fokas , B. Pelloni

In the present paper, an algorithm for the numerical solution of the external Dirichlet generalized harmonic problem for a sphere by the method of probabilistic solution (MPS) is given, where generalized indicates that a boundary function…

We use novel integral representations developed by the second author to prove certain rigorous results concerning elliptic boundary value problems in convex polygons. Central to this approach is the so-called global relation, which is a…

Analysis of PDEs · Mathematics 2013-01-09 A. C. L. Ashton , A. S. Fokas

A new transform-based approach is presented that can be used to solve mixed boundary value problems for Laplace's equation in non-convex and other planar domains, specifically the so-called Lipschitz domains. This work complements Crowdy…

Complex Variables · Mathematics 2025-07-30 Jesse J. Hulse , Loredana Lanzani , Stefan G. Llewellyn Smith , Elena Luca

In this work, The Tricomi type boundary problem with integral conjugation condition on the type-changing line for the mixed type equation with Hilfer fractional differential operator has been considered. Using method of integral equations,…

Classical Analysis and ODEs · Mathematics 2019-04-05 Erkinjon Karimov

This paper develops a new Hilbert space method to characterize a family of reproducing kernel Hilbert spaces of real harmonic functions in a bounded Lipschitz domain $\Omega \subset \mathbb R^d, d\geq 2$ involving some families of positive…

Analysis of PDEs · Mathematics 2019-07-25 Soumia Touhami , Abdellatif Chaira

A large class of initial-boundary value problems of linear evolution partial differential equations formulated on the half-line is analyzed via the unified transform method. In particular, explicit formulae are presented for the generalized…

Analysis of PDEs · Mathematics 2016-04-21 Athanassios S. Fokas , Zipeng Wang

This paper is concerned with the boundary integral equation method for solving the exterior Neumann boundary value problem of dynamic poroelasticity in two dimensions. The main contribution of this work consists of two aspescts: the…

Computational Physics · Physics 2020-08-18 Lu Zhang , Liwei Xu , Tao Yin

A piecewise continuous biharmonic problem in domains with corner points and a corresponding Schwarz type boundary value problem for monogenic functions in a commutative biharmonic algebra are considered. A method for reducing the problems…

Complex Variables · Mathematics 2025-04-25 S. V. Gryshchuk , S. A. Plaksa

Boundary value problems for integrable nonlinear evolution PDEs formulated on the half-line can be analyzed by the unified method introduced by one of the authors and used extensively in the literature. The implementation of this general…

Analysis of PDEs · Mathematics 2015-05-30 A. S. Fokas , J. Lenells