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MOC
2000
83views more  MOC 2000»
13 years 8 months ago
On the problem of spurious eigenvalues in the approximation of linear elliptic problems in mixed form
In the approximation of linear elliptic operators in mixed form, it is well known that the so-called inf-sup and ellipticity in the kernel properties are sufficient (and, in a sens...
Daniele Boffi, Franco Brezzi, Lucia Gastaldi
MOC
2000
77views more  MOC 2000»
13 years 8 months ago
Ultraconvergence of the patch recovery technique II
The ultraconvergence property of a gradient recovery technique proposed by Zienkiewicz and Zhu is analyzed for the Laplace equation in the two dimensional setting. Under the assump...
Zhimin Zhang
MOC
1998
76views more  MOC 1998»
13 years 8 months ago
Quadrature formulae using zeros of Bessel functions as nodes
A gaussian type quadrature formula, where the nodes are the zeros of Bessel functions of the first kind of order α ( (α) > −1), was recently proved for entire functions of ...
Riadh Ben Ghanem
MOC
1998
72views more  MOC 1998»
13 years 8 months ago
Interpolation correction for collocation solutions of Fredholm integro-differential equations
In this paper we discuss the collocation method for a large class of Fredholm linear integro-differential equations. It will be shown that, when a certain higher order interpolati...
Qiya Hu
MOC
2000
79views more  MOC 2000»
13 years 8 months ago
On fundamental domains of arithmetic Fuchsian groups
Let K be a totally real algebraic number field and O an order in a quaternion algebra A over K. Assume that the group O1 of units in O with reduced norm equal to 1 is embedded into...
Stefan J. Johansson