Buscar
Mostrando ítems 661-670 de 678
Artículo
Claves del presente y futuro del ensayo
(Círculo de Bellas Artes de Madrid, 2023)
¿Qué debe reunir un ensayo para ser publicado? ¿Por qué títulos como El infinito en un junco arrasan? ¿Sobrevivirá el género a los nuevos medios de divulgación? En esta conversación, moderada por Estrella Montolío, catedrática ...
Artículo
Hamiltonian triangular refinements and space-filling curves
(Elsevier, 2019)
We have introduced here the concept of Hamiltonian triangular refinement. For any Hamiltonian triangulation it is shown that there is a refinement which is also a Hamiltonian triangulation and the corresponding Hamiltonian ...
Artículo
Sequential density techniques for an approximate Radon-Nikodym theorem
(Springer, 2007)
We deal with the problem of approximate representation of linear functionals and show how the sequential density techniques may be used for solution.
Artículo
The nth root of a braid is unique up to conjugacy
(Mathematical Sciences Publishers, 2003-11-01)
We prove a conjecture due to Makanin: if α and β are elements of the Artin braid group Bn such that α k = β k for some nonzero integer k, then α and β are conjugate. The proof involves the Nielsen-Thurston classification ...
Artículo
Removal and contraction operations in nD generalized maps for efficient homology computation
(2014)
In this paper, we show that contraction operations preserve the homology of nD generalized maps, under some conditions. Removal and contraction operations are used to propose an efficient algorithm that compute homology ...
Artículo
Local and global changes in cell density induce reorganisation of 3D packing in a proliferating epithelium
(The Company of Biologists, 2024)
Tissue morphogenesis is intimately linked to the changes in shape and organisation of individual cells. In curved epithelia, cells can intercalate along their own apicobasal axes, adopting a shape named ‘scutoid’ that ...
Artículo
Fully parallel homological region adjacency graph via frontier recognition
(MDPI, 2023-05-31)
Relating image contours and regions and their attributes according to connectivity based on incidence or adjacency is a crucial task in numerous applications in the fields of image processing, computer vision and pattern ...
Artículo
Derivation of a bilayer model for shallow water equations with viscosity. Numerical validation
(Tech Science Press, 2009)
In this work we present a new two-dimensional bilayer Shallow-Water model including viscosity and friction effects on the bottom and interface level. It is obtained following [[6]] from an asymptotic analysis of non-dimensional ...
Artículo
Complete maximal surfaces in static Robertson–Walker 3-spaces
(Springer, 2007)
We construct a large family of complete maximal surfaces in the static Robertson–Walker 3-spaces with negative base curvature. These examples provide a wide variety of non-standard foliations of such spaces by entire ...
Artículo
Stable and Isoperimetric Regions in Rotationally Symmetric Tori with Decreasing Gauss Curvature
(Indiana University Mathematics Department, 2007)
In this work we classify the stable regions (second order minima of perimeter under an area constraint) in tori of revolution with piecewise continuous decreasing Gauss curvature from the longest parallel and with a ...