Results 1 to 10 of about 4,982,851 (182)

Enabling New Flexibility in the SUNDIALS Suite of Nonlinear and Differential/Algebraic Equation Solvers [PDF]

open access: yesACM Transactions on Mathematical Software, 2020
In recent years, the SUite of Nonlinear and DIfferential/ALgebraic equation Solvers (SUNDIALS) has been redesigned to better enable the use of application-specific and third-party algebraic solvers and data structures.
D. Gardner   +3 more
semanticscholar   +1 more source

Experimental Results for a Nonlinear Equation Using Improved Newton-Raphson Estimation Method

open access: yesJournal of Al-Qadisiyah for Computer Science and Mathematics, 2021
In this paper, two algorithms for solving the nonlinear equation of the solar cell within single diode model are proposed. These algorithms are plays an important and significant rule in the evaluation of this equation.
M. Rasheed   +3 more
semanticscholar   +1 more source

Phase Portraits and Bounded and Singular Traveling Wave Solution of Stochastic Nonlinear Biswas–Arshed Equation

open access: yesDiscrete Dynamics in Nature and Society, 2022
The main purpose of the current paper is to study the phase portraits and bounded and singular traveling wave solution of the stochastic nonlinear Biswas–Arshed equation by using the “three-step method” of Professor Li’s method together with the phase ...
Yong Tang, Wei Zeng, Zhao Li
doaj   +1 more source

Nonlinear Dirac Equations [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2009
We construct nonlinear extensions of Dirac's relativistic electron equation that preserve its other desirable properties such as locality, separability, conservation of probability and Poincar invariance. We determine the constraints that the nonlinear term must obey and classify the resultant non-polynomial nonlinearities in a double expansion in ...
Ng, W.K., Parwani, R.R.
openaire   +5 more sources

Theory for Electrochemical Heat Sources and Exothermic Explosions: The Akbari–Ganji Method

open access: yesElectrochem, 2023
A device that transforms chemical energy into electrical energy is an electrochemical cell. The reaction type inside the cell determines whether it is exothermic or endothermic.
Ramalingam Vanaja   +3 more
doaj   +1 more source

An Efficient Two-Step Iterative Family Adaptive with Memory for Solving Nonlinear Equations and Their Applications

open access: yesMathematical and Computational Applications, 2022
We propose a new iterative scheme without memory for solving nonlinear equations. The proposed scheme is based on a cubically convergent Hansen–Patrick-type method.
Himani Sharma   +2 more
doaj   +1 more source

Scattering of radial solutions to the inhomogeneous nonlinear Schrödinger equation

open access: yesNonlinear Analysis, 2021
We prove scattering below the mass–energy threshold for the focusing inhomogeneous nonlinear Schrodinger equation i u t + Δ u + | x | − b | u | p − 1 u = 0 , when b ≥ 0 and N > 2 in the intercritical case 0 s c 1 .
Luccas Campos
semanticscholar   +1 more source

Nonlinear Pauli Equation

open access: yesCommunications in Analysis and Mechanics, 2022
In the framework of the self-consistent Maxwell-Pauli theory, the non-linear Pauli equation is obtained. Stationary and nonstationary solutions of the nonlinear Pauli equation for the hydrogen atom are studied. We show that spontaneous emission and the related rearrangement of the internal structure of an atom, which is traditionally called a ...
openaire   +2 more sources

Nonlinear Maxwell Equations [PDF]

open access: yesJournal of Nonlinear Mathematical Physics, 1996
6 pages ...
openaire   +3 more sources

The analytic solutions of Schrödinger equation with Cubic-Quintic nonlinearities

open access: yesResults in Physics, 2018
This paper deals with the nonlinear Schrödinger equation with Cubic-Quintic nonlinearities. After transforming the non-autonomous nonlinear Schrödinger equation into a stationary equation by adopting the BPVK idea, we give the classification of the ...
Chun-Yan Wang
doaj   +1 more source

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