Results 131 to 140 of about 125,502 (226)

Solvability of the Quaternary Continuous Classical Boundary Optimal Control Dominated by Quaternary Parabolic System

مجلة بغداد للعلوم
The purpose of this paper is to study the solvability of the quaternary continuous classical boundary optimal control vector problem dominated by quaternary nonlinear parabolic boundary value problem with state constraints.
Jamil A. Ali Al-Hawasy, Fetan J. Naji
doaj   +1 more source

Global weak solutions for the compressible Poisson–Nernst–Planck–Navier–Stokes system

Journal of the London Mathematical Society, Volume 113, Issue 5, May 2026.
Abstract We consider the compressible Poisson–Nernst–Planck–Navier–Stokes (PNPNS) system of equations, governing the transport of charged particles under the influence of the self‐consistent electrostatic potential, in a three‐dimensional bounded domain.
Daniel Marroquin, Dehua Wang
wiley   +1 more source

Application of Group‐Theoretical Approaches in Structural Natural Frequency Analyses

International Journal for Numerical Methods in Engineering, Volume 127, Issue 7, 15 April 2026.
ABSTRACT Group theory has profoundly advanced physics and chemistry in systems with symmetries. Yet its use in structural engineering applications has not yet been fully explored beyond the aesthetics of symmetric designs. This work addresses two significant gaps that have limited the broader adoption of group‐theoretic methods in structural vibration ...
Shiyao Sun, Kapil Khandelwal
wiley   +1 more source

Refinements of Kantorovich type, Schwarz and Berezin number inequalities

Extracta Mathematicae, 2020
In this article, we use Kantorovich and Kantorovich type inequalities in order to prove some new Berezin number inequalities. Also, by using a refinement of the classical Schwarz inequality, we prove Berezin number inequalities for powers of f (A), where
M. Garayev, F. Bouzeffour, M. Gürdal , C.M. Yangöz   +3 more
doaj  

Geometry of Continuous Adjoint Newton's Method for Bivariate Quadratics

Maple Transactions
Newton's method is a classical iterative approach for computing solutions to nonlinear equations. To overcome some of its drawbacks, one often considers a continuous adjoint form of Newton's method. This paper investigates the geometric structure of the trajectories produced by the continuous adjoint Newton's method for bivariate quadratics, a system ...
Jonathan Hauenstein, Caroline Hills, Hoon Hong, Francisco Ponce Carrion   +3 more
openaire   +1 more source

Continuous Adjoint Sensitivity Analysis for Aerodynamic and Acoustic Optimization

, 1999
A gradient-based shape optimization methodology based on continuous adjoint sensitivities has been developed for two-dimensional steady Euler equations on unstructured meshes and the unsteady transonic small disturbance equation. The continuous adjoint sensitivities of the Helmholtz equation for acoustic applications have also been derived and ...
openaire   +2 more sources

Continuous posets and adjoint sequences

Semigroup Forum, 1979
openaire   +1 more source

Fast automated adjoints for spectral PDE solvers. [PDF]

Proc Natl Acad Sci U S A
Skene CS, Burns KJ.
europepmc   +1 more source

Full-space inverse-designed meta-optics for complex vector field shaping of intracavity landscapes. [PDF]

Light Sci Appl
Xu M, Sang D, Pu M, Gao P, Zhao B, Zheng Y, Zeng Q, Chen L, Zhang F, Guo Y, Li X, Ma X, Fu Y, Luo X.   +13 more
europepmc   +1 more source

Fast Numerical Solvers for Parameter Identification Problems in Mathematical Biology. [PDF]

J Sci Comput
Benková K, Pearson JW, Ptashnyk M.
europepmc   +1 more source