Results 11 to 20 of about 1,741,144 (328)

Positive solutions of a boundary value problem with integral boundary conditions [PDF]

open access: yesElectronic Journal of Differential Equations, 2011
We consider boundary-value problems studied in a recent paper. We show that some existing theory developed by Webb and Infante applies to this problem and we use the known theory to show how to find improved estimates on parameters $mu^*, lambda ...
Jeff R. L. Webb
doaj   +2 more sources

A boundary-value problem for cold plasma dynamics [PDF]

open access: yes, 2002
A weak Guderley-Morawetz problem is formulated for a mixed elliptic-hyperbolic system that arises in models of wave propagation in cold plasma. Weak solutions are shown to exist in a weighted Hilbert space.
Otway, Thomas H.
core   +3 more sources

The Buckling Operator: Inverse Boundary Value Problem

open access: yesMathematics, 2023
In this paper, we consider a zeroth-order perturbation q(x) of the buckling operator Δ2−κΔ, which can be uniquely determined by measuring the Dirichlet-to-Neumann data on the boundary.
Yanjun Ma
doaj   +1 more source

RIEMANN BOUNDARY-VALUE PROBLEM ON CASSINI SPIRALS

open access: yesПроблемы анализа, 2021
Recently, a number of papers has been published concerning the Riemann boundary-value problems on spiral-like arcs. In all these works, the spiral has the shape close to concentric circles, i. e., with equal rates of torsion in all directions.
L. Zhixin, B. A. Kats
doaj   +1 more source

An integral equation method for a boundary value problem arising in unsteady water wave problems [PDF]

open access: yes, 2008
In this paper we consider the 2D Dirichlet boundary value problem for Laplace’s equation in a non-locally perturbed half-plane, with data in the space of bounded and continuous functions.
Chamberlain, P. G   +2 more
core   +1 more source

BELTRAMI EQUATIONS REVISITED: MARCINKIEWICZ EXPONENTS AND PAINLEVE-TYPE THEOREM

open access: yesПроблемы анализа, 2018
We deal with some new results on some types of Beltrami equations. There is a new approach involving the new metric characteristics: the Marcinkiewicz exponents. Another vision is applying the Cauchy-type integral representation to such equations.
Katz D . B .
doaj   +1 more source

An elliptic boundary value problem for $G_{2}$ structures [PDF]

open access: yes, 2018
We show that the $G_{2}$ holonomy equation on a manifold with boundary, with prescribed 3-form on the boundary, is elliptic. The main point is to set up a suitable linear elliptic boundary value problem. This result leads to a deformation theory.
Donaldson, Simon
core   +3 more sources

Solutions to a Three-Point Boundary Value Problem

open access: yesAdvances in Difference Equations, 2011
By using the fixed-point index theory and Leggett-Williams fixed-point theorem, we study the existence of multiple solutions to the three-point boundary value problem ,  ; ; , where , are constants, is a parameter, and , are given ...
Jin Liang, Zhi-Wei Lv
doaj   +2 more sources

Boundary-value problem with free boundary: zirconium alloy hydrogenation

open access: yesTransactions of the Karelian Research Centre of the Russian Academy of Sciences, 2016
One of the most important requirements for the reactor’s active zone materials (made of zirconium alloys) is low hydrogen absorptivity since hydrogen embrittlement may cause zirconium cladding damage.
Yury Zaika, Natalia Rodchenkova
doaj   +1 more source

The boundary value problem for discrete analytic functions

open access: yes, 2013
This paper is on further development of discrete complex analysis introduced by R. Isaacs, J. Ferrand, R. Duffin, and C. Mercat. We consider a graph lying in the complex plane and having quadrilateral faces.
Alexa   +29 more
core   +1 more source

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