Results 11 to 20 of about 93,507 (297)

Multivariate Newton Interpolation [PDF]

open access: green, 2018
For $m,n \in \mathbb{N}$, $m\geq 1$ and a given function $f : \mathbb{R}^m\longrightarrow \mathbb{R}$, the polynomial interpolation problem (PIP) is to determine a unisolvent node set $P_{m,n} \subseteq \mathbb{R}^m$ of $N(m,n):=|P_{m,n}|=\binom{m+n}{n}$ points and the uniquely defined polynomial $Q_{m,n,f}\in _{m,n}$ in $m$ variables of degree ...
Michael Hecht   +3 more
openalex   +3 more sources

On Multivariate Lagrange Interpolation [PDF]

open access: bronzeMathematics of Computation, 1995
Lagrange interpolation by polynomials in several variables is studied through a finite difference approach. We establish an interpolation formula analogous to that of Newton and a remainder formula, both of them in terms of finite differences. We prove that the finite difference admits an integral representation involving simplex spline functions.
Thomas Sauer, Yuan Xu
openalex   +2 more sources

Interpolation by multivariate splines [PDF]

open access: bronzeMathematics of Computation, 1988
A general interpolation scheme by multivariate splines at regular sample points is introduced. This scheme guarantees the local optimal order of approximation to sufficiently smooth data functions. A discussion on numerical implementation is included.
Charles K. Chui   +2 more
openalex   +2 more sources

MULTIVARIATE AFFINE FRACTAL INTERPOLATION [PDF]

open access: yesFractals, 2020
Fractal interpolation functions capture the irregularity of some data very effectively in comparison with the classical interpolants. They yield a new technique for fitting experimental data sampled from real world signals, which are usually difficult to represent using the classical approaches.
Navascués, M.A.   +2 more
openaire   +3 more sources

On Multivariate Interpolation [PDF]

open access: yesStudies in Applied Mathematics, 2005
A new approach to interpolation theory for functions of several variables is proposed. We develop a multivariate divided difference calculus based on the theory of noncommutative quasi‐determinants. In addition, intriguing explicit formulae that connect the classical finite difference interpolation coefficients for univariate curves with multivariate ...
  +4 more sources

Multivariate interpolation: Preserving and exploiting symmetry [PDF]

open access: yesJournal of Symbolic Computation, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Rodriguez Bazan, Erick, Hubert, Evelyne
openaire   +2 more sources

Performance assessment of interpolation techniques for optimal areal rainfall–temperature estimation: the case of two contrasting river catchments, Akaki and Mille, in Ethiopia

open access: yesJournal of Water and Climate Change, 2022
In the topographic complex catchments, landscape features have a significant impact on the spatial prediction of rainfall and temperature. In this study, performance assessments were made of various interpolation techniques for the prediction of the ...
Hirpo Gudeta Bati   +2 more
doaj   +1 more source

High-Resolution Precipitation Modeling in Complex Terrains Using Hybrid Interpolation Techniques: Incorporating Physiographic and MODIS Cloud Cover Influences

open access: yesRemote Sensing, 2023
The inclusion of physiographic and atmospheric influences is critical for spatial modeling of orographic precipitation in complex terrains. However, attempts to incorporate cloud cover frequency (CCF) data when interpolating precipitation are limited ...
Karam Alsafadi   +6 more
doaj   +1 more source

Guaranteed passive parameterized admittance-based macromodeling [PDF]

open access: yes, 2010
We propose a novel parametric macromodeling technique for admittance and impedance input-output representations parameterized by design variables such as geometrical layout or substrate features. It is able to build accurate multivariate macromodels that
Dhaene, Tom   +2 more
core   +2 more sources

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