Results 11 to 20 of about 395 (42)
Recursive POD expansion for the advection-diffusion-reaction equation [PDF]
, 2018 This paper deals with the approximation of advection-diffusion-reaction equation solution by reduced order methods. We use the Recursive POD approximation for multivariate functions introduced in [M. AZAÏEZ, F. BEN BELGACEM, T. CHACÓN REBOLLO, Recursive
Azaïez, Majdi +3 more
core +3 more sources
Tensor product approximations of high dimensional potentials [PDF]
, 2009 The paper is devoted to the efficient computation of high-order cubature formulas for volume potentials obtained within the framework of approximate approximations. We combine this approach with modern methods of structured tensor product approximations.
Lanzara, Flavia +2 more
core +3 more sources
Partition of unity interpolation using stable kernel-based techniques [PDF]
, 2016 In this paper we propose a new stable and accurate approximation technique which is extremely effective for interpolating large scattered data sets.
Cavoretto, R. +4 more
core +1 more source
Severi-Bouligand tangents, Frenet frames and Riesz spaces [PDF]
, 2014 It was recently proved that a compact set $X\subseteq \mathbb R^2$ has an outgoing Severi-Bouligand tangent vector $u\not=0$ at $x\in X$ iff some principal ideal of the Riesz space $\mathcal R(X)$ of piecewise linear functions on $X$ is not an ...
Cabrer, Leonardo Manuel +1 more
core +3 more sources
On the two-dimensional rotational body of maximal Newtonian resistance [PDF]
, 2009 We investigate, by means of computer simulations, shapes of nonconvex bodies that maximize resistance to their motion through a rarefied medium, considering that bodies are moving forward and at the same time slowly rotating.
A Yu Plakhov +11 more
core +2 more sources
A discrete methodology for controlling the sign of curvature and torsion for NURBS [PDF]
, 2009 This paper develops a discrete methodology for approximating the so-called convex domain of a NURBS curve, namely the domain in the ambient space, where a user-specified control point is free to move so that the curvature and torsion retains its sign ...
Alexandros I. Ginnis +5 more
core +1 more source
Taylor Series for Adomian Decomposition Method
, 2011 In the paper we analyse the exact solutions to scalar PDEs obtained thanks to summable Taylor series provided by Adomian's decomposition method. We propose the modification of the method which makes the calculations of Taylor coefficients easier and more
Kutafina, Ekaterina
core +1 more source
A trivariate interpolation algorithm using a cube-partition searching procedure [PDF]
, 2014 In this paper we propose a fast algorithm for trivariate interpolation, which is based on the partition of unity method for constructing a global interpolant by blending local radial basis function interpolants and using locally supported weight ...
Cavoretto, Roberto, De Rossi, Alessandra
core +2 more sources
Adaptive meshless refinement schemes for RBF-PUM collocation
, 2018 In this paper we present an adaptive discretization technique for solving elliptic partial differential equations via a collocation radial basis function partition of unity method. In particular, we propose a new adaptive scheme based on the construction
Cavoretto, R., De Rossi, A.
core +1 more source
A Numerical Method for Pricing Discrete Double Barrier Option by Legendre Multiwavelet
, 2017 In this Article, a fast numerical numerical algorithm for pricing discrete double barrier option is presented. According to Black-Scholes model, the price of option in each monitoring date can be evaluated by a recursive formula upon the heat equation ...
Milev, Mariyan, Sobhani, Amirhossein
core +1 more source