Results 31 to 40 of about 170,536 (269)
Fast spline quasicollocation solvers of integral equations
Mathematical Modelling and Analysis, 2007 A fast (C, Cm) solver for linear Fredholm integral equations u = Tu+f with smooth data is constructed on the basis of a discrete version of the spline quasicollocation method.
Gennadi Vainikko, Indrek Zolk
doaj +1 more source
Demographic Research, 2021 Background: High-dimensional parametric models with penalized likelihood functions strike a good balance between bias and variance for estimating continuous age schedules from large samples. The penalized spline (P-spline) approach is particularly useful
Carl Schmertmann
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Variable degree polynomial splines are Chebyshev splines [PDF]
Advances in Computational Mathematics, 2011 Variable degree polynomial (VDP) splines have recently proved themselves as a valuable tool in obtaining shape preserving approximations. However, some usual properties which one would expect of a spline space in order to be useful in geometric modeling, do not follow easily from their definition.
Bosner, Tina, Rogina, Mladen
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Frontiers in Materials, 2022 We propose an efficient method to determine the micro-structural entropic behavior of polymer chains directly from a sufficiently rich non-homogeneous experiment at the continuum scale.
Víctor J. Amores +4 more
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Unstructured spline spaces for isogeometric analysis based on spline manifolds
, 2015 Based on spline manifolds we introduce and study a mathematical framework for analysis-suitable unstructured B-spline spaces. In this setting the parameter domain has a manifold structure, which allows for the definition of function spaces that have a ...
Sangalli, Giancarlo +2 more
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Cardinal approximation of functions by splines on an interval
Mathematical Modelling and Analysis, 2009 The cardinal interpolant of functions on the real line by splines is determined by certain formula free of solving large or infinite systems. We apply this formula to functions given on the interval [0,1] introducing special extensions of functions from [
Gennadi Vainikko
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Approximation in FEM, DG and IGA: A Theoretical Comparison [PDF]
, 2019 In this paper we compare approximation properties of degree $p$ spline spaces with different numbers of continuous derivatives. We prove that, for a given space dimension, $\smooth {p-1}$ splines provide better a priori error bounds for the approximation
Bressan, Andrea, Sande, Espen
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Hospital Readmission After Traumatic Brain Injury Hospitalization in Community‐Dwelling Older Adults
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective To examine the risk of hospital readmission after an index hospitalization for TBI in older adults. Methods Using data from the Atherosclerosis Risk in Communities (ARIC) study, we used propensity score matching of individuals with an index TBI‐related hospitalization to individuals with (1) non‐TBI hospitalizations (primary analysis)
Rachel Thomas +7 more
wiley +1 more source
Mathematical Modelling and Analysis, 2005 A method for numerical solving of boundary values problems of ordinary differential equations based on the use of splines and differentiation matrices with nodes as zeroes of classical orthogonal polynomials is considered. Possibilities of the method are
M. Belovs, T. Cirulis
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Computational Statistics & Data Analysis, 2014 19 pages, 4 figures and 7 ...
Bergersen, Linn Cecilie +2 more
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