Results 11 to 20 of about 938,411 (197)

A Newton Interpolation Approach to Generalized Stirling Numbers [PDF]

open access: yesJournal of Applied Mathematics, 2012
We employ the generalized factorials to define a Stirling-type pair {s(n,k;α,β,r),S(n,k;α,β,r)} which unifies various Stirling-type numbers investigated by previous authors.
Aimin Xu
doaj   +2 more sources

Interpolated Coefficient Mixed Finite Elements for Semilinear Time Fractional Diffusion Equations

open access: yesFractal and Fractional, 2023
In this paper, we consider a fully discrete interpolated coefficient mixed finite element method for semilinear time fractional reaction–diffusion equations. The classic L1 scheme based on graded meshes and new mixed finite element based on triangulation
Xiaowu Li, Yuelong Tang
doaj   +1 more source

A Novel n-Point Newton-Type Root-Finding Method of High Computational Efficiency

open access: yesMathematics, 2022
A novel Newton-type n-point iterative method with memory is proposed for solving nonlinear equations, which is constructed by the Hermite interpolation. The proposed iterative method with memory reaches the order (2n+2n−1−1+22n+1+22n−2+2n+1)/2 by using n
Xiaofeng Wang
doaj   +1 more source

Newton Type Operator Interpolation Formulas Based on Interpolation by Means of Rational Functions [PDF]

open access: yesComputational Methods in Applied Mathematics, 2002
AbstractThis paper is devoted to the construction of Newton type interpolation formulas for operators differentiable or not in the Gateaux sense based on interpolation by means of rational functions. The formulas obtained are exact for operator polynomials typical for the considered systems of rational functions.
Ignatenko, M. V., Yanovich, L. A.
openaire   +2 more sources

Symmetric smooth interpolation on triangles [PDF]

open access: yes, 1974
Rational and polynomial 'smooth' interpolation schemes are derived which interpolate a function and its derivatives along the boundary of a triangle.
Gregory, JA
core   +6 more sources

Multi-Rate Parallel Real-Time Simulation Method for Doubly Fed Wind Power Systems Based on FPGA–CPU

open access: yesMachines, 2022
A multi-rate parallel real-time simulation method based on FPGA–CPU is studied to realize the asynchronous co-simulation of the converter of doubly fed wind power systems with the wind turbine and external power grid.
Guangrao Yang   +5 more
doaj   +1 more source

Finite Gradient Models with Enriched RBF-Based Interpolation

open access: yesMathematics, 2022
A finite strain gradient model for the 3D analysis of materials containing spherical voids is presented. A two-scale approach is proposed: a least-squares methodology for RVE analysis with quadratic displacements and a full high-order continuum with both
Pedro Areias   +3 more
doaj   +1 more source

A New Blow-Up Criterion to a Singular Non-Newton Polytropic Filtration Equation

open access: yesMathematics, 2023
In this paper, a singular non-Newton polytropic filtration equation under the initial-boundary value condition is revisited. The finite time blow-up results were discussed when the initial energy E(u0) was subcritical (E(u0)d), with d being the potential
Qingwei Li, Menglan Liao
doaj   +1 more source

A general recurrence interpolation formula and its applications to multivariate interpolation [PDF]

open access: yes, 1982
Following the ideas of several papers by G. Mühlbach, a general recurrence interpolation formula is obtained that contains as particular cases some extended Newton and Aitken-Neville interpolation formulas. The exposition of the problem allows us to show
López-Carmona, A, Gasca, M
core   +1 more source

Improvement of the WENO-NIP Scheme for Hyperbolic Conservation Laws

open access: yesAxioms, 2022
The WENO-NIP scheme was obtained by developing a class of L1-norm smoothness indicators based on Newton interpolation polynomial. It recovers the optimal convergence order in smooth regions regardless of critical points and achieves better resolution ...
Ruo Li, Wei Zhong
doaj   +1 more source

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