𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Quasi-interpolants associated with H-splines on a three-direction mesh

✍ Scribed by Paul Sablonnière

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
501 KB
Volume
66
Category
Article
ISSN
0377-0427

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

On near-best discrete quasi-interpolatio
On near-best discrete quasi-interpolation on a four-directional mesh
✍ D. Barrera; M.J. Ibáñez; P. Sablonnière; D. Sbibih 📂 Article 📅 2010 🏛 Elsevier Science 🌐 English ⚖ 538 KB

Spline quasi-interpolants are practical and effective approximation operators. In this paper, we construct QIs with optimal approximation orders and small infinity norms called nearbest discrete quasi-interpolants which are based on Ω-splines, i.e. B-splines with octagonal supports on the uniform fo

Cubature rule associated with a discrete
Cubature rule associated with a discrete blending sum of quadratic spline quasi-interpolants
✍ Vittoria Demichelis; Paul Sablonnière 📂 Article 📅 2010 🏛 Elsevier Science 🌐 English ⚖ 353 KB

A new cubature rule for a parallelepiped domain is defined by integrating a discrete blending sum of C 1 quadratic spline quasi-interpolants in one and two variables. We give the weights and the nodes of this cubature rule and we study the associated error estimates for smooth functions. We compare

On numerical errors associated with the
On numerical errors associated with the iterative alternating direction implicit (Iadi) finite difference solution of the two dimensional transient saturated-unsaturated flow (Richards) equation
✍ G. A. Parissopoulos; H. S. Wheater 📂 Article 📅 1988 🏛 John Wiley and Sons 🌐 English ⚖ 765 KB

Numerical models for simulation of multidimensional unsaturated flow are becoming increasingly available, but relatively little has been reported on the detailed analysis of numerical errors associated with such schemes. For unsaturated-saturated flow, further complexity is introduced to the highly