Buscar
Mostrando ítems 1-10 de 169
Artículo
The seven-triangle longest-side partition of triangles and mesh quality improvement
(Elsevier, 2008)
A new triangle partition, the seven-triangle longest-edge partition, based on the trisection of the edges is presented and the associated mesh quality improvement property, discussed. The seven-triangle longest-edge ...
Artículo
The General Set in the MCIM isotopic model
(Springer, 2005)
To obtain a bigger number of mathematical and physical applications of the Santilli's isotheory, the last studies have shown the neeed of analyzing isotopic models which use non associative laws. The main goal of this paper ...
Artículo
Single bend wiring on surfaces
(2002)
The following problem of rectilinear routing is studied: given pairs of points on a surface and a set of permissible orthogonal paths joining them, whether is it possible to choose a path for each pair avoiding all ...
Artículo
A consistent intermediate wave speed for a well-balanced HLLC solver.
(Gauthier-Villars, 2008)
In this work, we present a HLLC scheme modification for application to nonhomogeneous shallow-water equations with pollutant transport. This new version is related to the definition of a consistent approximation of the ...
Artículo
Rectifications of A-Algebras
(2007)
In this article, in the setting of connected DG-modules, we prove that, for any A -algebra M mi i≥1 , there is a chain contraction from a DG-algebra AM onto the DG-module M such that the A -algebra structure induced ...
Artículo
A complete set of covariants of the four qubit system
(IOS Press, 2003)
We obtain a complete and minimal set of 170 generators for the algebra of SL(2, C )×4- covariants of a binary quadrilinear form. Interpreted in terms of a four qubit system, this describes in particular the algebraic ...
Artículo
On a shallow water model for the simulation of turbidity currents
(Cambridge University Press, 2009)
We present a model for hyperpycnal plumes or turbidity currents that takes into account the interaction between the turbidity current and the bottom, considering deposition and erosion effects as well as solid transport ...
Artículo
On the Minimum Order of Extremal Graphs to have a Prescribed Girth
(SIAM, 2007)
We show that any n‐vertex extremal graph G without cycles of length at most k has girth exactly $k+1$ if $k\ge 6$ and $n>(2(k-2)^{k-2}+k-5)/(k-3)$. This result provides an improvement of the asymptotical known result by ...
Artículo
Algebra Structures on the Comparison of the Reduced Bar Construction and the Reduced W-Construction
(Taylor and Francis, 2009)
For a simplicial augmented algebra K, Eilenberg–Mac Lane constructed a chain map . They proved that g is a reduction (homology isomorphism) and conjectured that it is also the injection of a contraction (special homotopy ...
Artículo
Un estudio de esquemas bien equilibrados en sistemas hiperb∂olicos no homog∂eneos.
(Sociedad Española de Matemática Aplicada, 2005)