Solutions of the divergence and analysis of the Stokes equations in planar Hölder-α domains

RG Durán, F Lopez Garcia - Mathematical Models and Methods in …, 2010 - World Scientific
If Ω⊂ ℝn is a bounded domain, the existence of solutions of div u= f for f∈ L2 (Ω) with
vanishing mean value, is a basic result in the analysis of the Stokes equations. In particular …

Asymptotic analysis of a Neumann problem in a domain with cusp. Application to the collision problem of rigid bodies in a perfect fluid

A Munnier, K Ramdani - SIAM Journal on Mathematical Analysis, 2015 - SIAM
We study a two dimensional collision problem for a rigid solid immersed in a cavity filled with
a perfect fluid. We are led to investigate the asymptotic behavior of the Dirichlet energy …

Laplace equation on a domain with a cuspidal point in little Hölder spaces

B Chaouchi, R Labbas, BK Sadallah - Mediterranean journal of …, 2013 - Springer
In this paper, we give new results about existence, uniqueness and regularity properties for
solutions of Laplace equation Δ u= h\rm in\, Ω where Ω is a cusp domain. We impose …

Principal eigenvalues for generalised indefinite Robin problems

D Daners - Potential Analysis, 2013 - Springer
We consider the principal eigenvalue of generalised Robin boundary value problems on
non-smooth domains, where the zero order coefficient of the boundary operator is negative …

Shape derivative of the Dirichlet energy for a transmission problem

P Laurençot, C Walker - Archive for Rational Mechanics and Analysis, 2020 - Springer
For a transmission problem in a truncated two-dimensional cylinder located beneath the
graph of a function u, the shape derivative of the Dirichlet energy (with respect to u) is shown …

Finite element approximations in a nonLipschitz domain

G Acosta, MG Armentano, RG Durán… - SIAM journal on numerical …, 2007 - SIAM
In this paper we analyze the approximation by standard piecewise linear finite elements of a
nonhomogeneous Neumann problem in a cuspidal domain. Since the domain is not …

The Steklov eigenvalue problem in a cuspidal domain

MG Armentano, AL Lombardi - Numerische Mathematik, 2020 - Springer
In this paper we analyze the approximation, by piecewise linear finite elements, of a Steklov
eigenvalue problem in a plane domain with an external cusp. This problem is not covered by …

The spectral position of Neumann domains on the torus

R Band, SK Egger, AJ Taylor - The Journal of Geometric Analysis, 2021 - Springer
Neumann domains of Laplacian eigenfunctions form a natural counterpart of nodal domains.
The restriction of an eigenfunction to one of its nodal domains is the first Dirichlet …

Finite element approximations in a non-Lipschitz domain: Part II

G Acosta, M Armentano - Mathematics of computation, 2011 - ams.org
In a paper by R. Durán, A. Lombardi, and the authors (2007) the finite element method was
applied to a non-homogeneous Neumann problem on a cuspidal domain $\Omega\subset …

[PDF][PDF] A new mixed derivative terms removing numerical method for option pricing in the Heston model

MN Koleva, LG Vulkov - AIP conference proceedings, 2019 - academia.edu
This work deals with numerical solution of option pricing Heston model. We propose a new
transformation of the independent variables to remove the mixed derivative. As a result, the …