Results 11 to 20 of about 1,279,657 (325)

A variational method for second order shape derivatives [PDF]

open access: greenSIAM Journal on Control and Optimization, 2015
Submitted paper.
Guy Bouchitté   +2 more
openalex   +6 more sources

The “Second Derivative” of a Non-Differentiable Function and its Use in Interval Optimization Methods

open access: yesJournal of Telecommunications and Information Technology, 2023
The paper presents an idea to use weak derivatives in interval global optimization. It allows using the Newton operator to narrow domains of non-differentiable functions. Preliminary computational experiments are also presented.
Bartłomiej Jacek Kubica
doaj   +1 more source

Polynomial Formulation of Second Derivative Multistep Methods [PDF]

open access: yesMathematics of Computation, 1982
Following the work of Enright [3] there has been interest in studying second derivative methods for solving stiff ordinary differential equations. Successful implementations of second derivative methods have been reported by Enright [3], Sacks-Davis [9], [10] and Addison[l].
Kovvali, S., Gupta, G. K.
openaire   +2 more sources

Second derivative General Linear Method in Nordsieck form

open access: yesJournal of Numerical Analysis and Approximation Theory, 2019
This paper considers the construction of second derivative general linear methods (SD-GLM) from hybrid LMM and their transformation to Nordsieck GLM. How the Runge-Kutta starters for the methods can be derived are given.
Robert I. Okuonghae   +1 more
doaj   +7 more sources

Complementary First and Second Derivative Methods for Ansatz Optimization in Variational Monte Carlo [PDF]

open access: yes, 2019
We present a comparison between a number of recently introduced low-memory wave function optimization methods for variational Monte Carlo in which we find that first and second derivative methods possess strongly complementary relative advantages.
Neuscamman, Eric, Otis, Leon
core   +2 more sources

Symmetric second derivative integration methods

open access: yesJournal of Computational and Applied Mathematics, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hosseini Nasab, M.   +2 more
openaire   +2 more sources

Optimal One-Point Iterative Function Free from Derivatives for Multiple Roots

open access: yesMathematics, 2020
We suggest a derivative-free optimal method of second order which is a new version of a modification of Newton’s method for achieving the multiple zeros of nonlinear single variable functions.
Deepak Kumar   +2 more
doaj   +1 more source

Ostrogradski Formalism for Higher-Derivative Scalar Field Theories [PDF]

open access: yes, 1998
We carry out the extension of the Ostrogradski method to relativistic field theories. Higher-derivative Lagrangians reduce to second differential-order with one explicit independent field for each degree of freedom.
Alonso J C   +14 more
core   +3 more sources

Trigonometrically-fitted second derivative method for oscillatory problems [PDF]

open access: yesSpringerPlus, 2014
A continuous Trigonometrically-fitted Second Derivative Method (CTSDM) whose coefficients depend on the frequency and stepsize is constructed using trigonometric basis functions. A discrete Trigonometrically-fitted second derivative method (TSDM) is recovered from the CTSDM as a by-product and applied to solve initial value problems (IVPs) with ...
Ngwane, Fidele, Jator, Samuel
openaire   +2 more sources

Extended Soliton Solutions in an Effective Action for SU(2) Yang-Mills Theory [PDF]

open access: yes, 2006
The Skyrme-Faddeev-Niemi (SFN) model which is an O(3) $\sigma$ model in three dimensional space up to fourth-order in the first derivative is regarded as a low-energy effective theory of SU(2) Yang-Mills theory.
Sawado, Nobuyuki   +2 more
core   +3 more sources

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