Results 1 to 10 of about 22,837 (216)

An approximating pseudospectral method with state‐dependent coefficient optimization for nonlinear optimal control problem

open access: yesIET Control Theory & Applications, 2023
The approximating sequence Riccati equation method is an efficient approach for solving the nonlinear optimal control problems, but its neglect of nonlinear dynamics and necessary optimality condition makes the control law difficult to satisfy the ...
Jianfeng Sun, Xuesong Chen
doaj   +1 more source

The non-uniqueness of the limit solutions of the scalar Chern-Simons equations with signed measures [PDF]

open access: yesMathematica Bohemica, 2021
We investigate the effect of admitting signed measures as a datum at the scalar Chern-Simons equation -\Delta u + {\rm e}^u({\rm e}^u-1) =\mu\quadin \Omega with the Dirichlet boundary condition.
Adilson Eduardo Presoto
doaj   +1 more source

Strong convergence of an inertial algorithm for maximal monotone inclusions with applications

open access: yesFixed Point Theory and Applications, 2020
An inertial iterative algorithm is proposed for approximating a solution of a maximal monotone inclusion in a uniformly convex and uniformly smooth real Banach space. The sequence generated by the algorithm is proved to converge strongly to a solution of
C. E. Chidume, A. Adamu, M. O. Nnakwe
doaj   +1 more source

Penalty method for a class of differential nonlinear system arising in contact mechanics

open access: yesFixed Point Theory and Algorithms for Sciences and Engineering, 2022
The main goal of this paper is to study a class of differential nonlinear system involving parabolic variational and history-dependent hemivariational inequalities in Banach spaces by using the penalty method.
Xu Chu   +3 more
doaj   +1 more source

Tykhonov Well-Posedness and Convergence Results for Contact Problems with Unilateral Constraints

open access: yesTechnologies, 2020
This work presents a unified approach to the analysis of contact problems with various interface laws that model the processes involved in contact between a deformable body and a rigid or reactive foundation.
Mircea Sofonea, Meir Shillor
doaj   +1 more source

Formal Verification of Medina's Sequence of Polynomials for Approximating Arctangent [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2014
The verification of many algorithms for calculating transcendental functions is based on polynomial approximations to these functions, often Taylor series approximations. However, computing and verifying approximations to the arctangent function are very
Ruben Gamboa, John Cowles
doaj   +1 more source

Jubilee for Jimmy; A Review

open access: yesJames Baldwin Review, 2023
This review of Jubilee for Jimmy explores the various ways Baldwin’s genius impacts our musical, dance, and literary culture. It was an extravagant performance that had both thematic and chronological resonance, approximating Baldwin’s influence.
Herb Boyd
doaj   +1 more source

On the well-posedness of differential quasi-variational-hemivariational inequalities

open access: yesOpen Mathematics, 2020
The goal of this paper is to discuss the well-posedness and the generalized well-posedness of a new kind of differential quasi-variational-hemivariational inequality (DQHVI) in Hilbert spaces.
Cen Jinxia   +3 more
doaj   +1 more source

Strong Convergence Theorems for Infinitely Nonexpansive Mappings in Hilbert Space

open access: yesFixed Point Theory and Applications, 2009
We introduce a modified Ishikawa iterative process for approximating a fixed point of two infinitely nonexpansive self-mappings by using the hybrid method in a Hilbert space and prove that the modified Ishikawa iterative sequence converges strongly to a ...
Yi-An Chen
doaj   +2 more sources

Artificial Neural Networks (ANN) Approach to Modelling of Selected Nitrogen Forms Removal from Oily Wastewater in Anaerobic and Aerobic GSBR Process Phases

open access: yesProceedings, 2019
The paper presents artificial neural network models approximating concentration of selected nitrogen forms in wastewater after sequence bath reactor with aerobic granular activated sludge (GSBR) anaerobic and aerobic phase. Developed models reflected all
Piotr Ofman, Joanna Struk-Sokołowska
doaj   +1 more source

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