Results 41 to 50 of about 17,216 (210)

A Model of Strategic Sustainable Investment

open access: yesMathematical Finance, Volume 36, Issue 4, Page 771-803, October 2026.
ABSTRACT We study a problem of optimal irreversible investment and emission reduction formulated as a nonzero‐sum dynamic game between an investor with environmental preferences and a firm. The game is set in continuous‐time on an infinite‐time horizon.
Tiziano De Angelis   +2 more
wiley   +1 more source

Existence of solutions for sublinear equations on exterior domains

open access: yesElectronic Journal of Differential Equations, 2017
In this article we prove the existence of an infinite number of radial solutions of $\Delta u + K(r)f(u)= 0$, one with exactly n zeros for each nonnegative integer n on the exterior of the ball of radius R>0, $B_{R}$, centered at the origin in ...
Joseph A. Iaia
doaj  

DEGENERATE DISTRIBUTED CONTROL SYSTEMS WITH FRACTIONAL TIME DERIVATIVE

open access: yesUral Mathematical Journal, 2016
The existence of a unique strong solution for the Cauchy problem to semilinear nondegenerate fractional differential equation and for the generalized Showalter–Sidorov problem to semilinear fractional differential equation with degenerate operator at the
Marina V. Plekhanova
doaj   +1 more source

Adaptive Observer for Coupled Wave PDE and Infinite ODE With Sampled Data and Unknown Input: Application to Brain Hemodynamics Estimation

open access: yesInternational Journal of Adaptive Control and Signal Processing, Volume 40, Issue 9, Page 1932-1944, September 2026.
This article proposes a convergent adaptive observer for a damped wave PDE and an infinite‐dimensional ODE coupled in cascade using sampled‐in‐space ODE state measurements. The proposed observer estimates the distributed states of the PDE and ODE along with unknown PDE parameters and spatial input.
Zehor Belkhatir   +2 more
wiley   +1 more source

Taxas de decaimento para a energia associada a um sistema semilinear de ondas elásticas em Rn com potencial do tipo dissipativo [PDF]

open access: yes, 2013
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas. Programa de Pós-Graduação em Matemática Pura e Aplicada, Florianópolis, 2013Neste trabalho estuda-se a existência e a unicidade de soluções globais
Horbach, Jaqueline Luiza
core  

Nontrivial solutions of semilinear elliptic systems in RN

open access: yesElectronic Journal of Differential Equations, 2001
We establish an existence result for strongly indefinite semilinear elliptic systems in R^N.
Jianfu Yang
doaj  

A Semi‐Discrete Lagrangian‐Eulerian Numerical Scheme for Diffusive‐Dispersive Conservation Laws With Discontinuous Coefficient

open access: yesNumerical Methods for Partial Differential Equations, Volume 42, Issue 5, September 2026.
ABSTRACT In this work, we present an extension of the semi‐discrete Lagrangian‐Eulerian numerical scheme for diffusive‐dispersive conservation law problems, including a jump discontinuous flux function. As in the one‐dimensional scalar hyperbolic case, the no‐flow curves also organize the geometry of the method.
Eduardo Abreu   +2 more
wiley   +1 more source

Nondegeneracy of the bubble solutions for critical equations involving the polyharmonic operator

open access: yesBoundary Value Problems, 2023
We reprove a result by Bartsch, Weth, and Willem (Calc. Var. Partial Differ. Equ. 18(3):253–268, 2003) concerning the nondegeneracy of bubble solutions for a critical semilinear elliptic equation involving the polyharmonic operator.
Dandan Yang   +3 more
doaj   +1 more source

Stability in Semilinear Problems

open access: yesJournal of Differential Equations, 2000
The author derives results concerning the continuous dependence of solutions on the right-hand side for a semilinear operator equation \(Lu=\nabla g(u)\), by assuming that \(L: D(L)\subset H\to H\) (\(H\) -- a Hilbert space) is selfadjoint, which a closed range, and \(g: H\to \mathbb{R}\) is continuous convex on \(H\) and Gâteaux differentiable on \(D ...
openaire   +1 more source

L∞$L^\infty$ compactness of solutions of quasilinear problems and applications

open access: yesJournal of the London Mathematical Society, Volume 114, Issue 3, September 2026.
Abstract For a (not necessarily smooth) bounded domain Ω$\Omega$ of RN$\mathbb {R}^N$, N⩾2$N \geqslant 2$ and a Carathéodory vector‐valued function a:Ω×RN→RN$a:\Omega \times \mathbb {R}^N \rightarrow \mathbb {R}^N$, we study the compactness of the inverse of the Leray–Lions operator A(u)=−div(a(x,∇u))$A(u)=-\text{div}(a(x, \nabla u))$, u∈W01,p(Ω)$u\in ...
D. Arcoya   +2 more
wiley   +1 more source

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