Listar Revista de Matemáticas 19(2) por título
Mostrando ítems 4-8 de 8
-
Implementation of LDG method for 3D unstructured meshes
(2012-07-01)This paper describes an implementation of the Local Discontinuous Galerkin method (LDG) applied to elliptic problems in 3D. The implementation of the major operators is discussed. In particular the use of higher-order ... -
Lagrangean relaxation for the geographical partitioning problem
(2012-07-01)Among methodologies used in territory clustering, stand location-allocation and set partitioning models, to group small geographic areas, usually called “basic units” into a given number of larger groups called “territories”. ... -
New geometrical compactness measures for zones design
(2012-07-01)The design of compact zones has been studied because of its influence in the creation of zones with regular forms, which are easier to analyze, to investigate or to administer. This paper propose a new method to measure ... -
Time-frequency methods based on the wavelet transform
(2012-07-01)The information contained in an analog signal is reveled by its numerical representation. The Fourier pair, in two complementary representations, expounds time and frequency structures. However, to detect and characterize ... -
Variants of the mixed postman problem solvable using linear programming
(2012-07-01)Given a connected mixed graph with costs on its edges and arcs, the mixed postman problem consists of finding a minimum cost closed tour of the mixed graph traversing all of its edges and arcs. It is well-known that this ...