Buscar
Mostrando ítems 21-30 de 201
Artículo
The Postprocessed Mixed Finite-Element Method for the Navier–Stokes Equations: Refined Error Bounds
(Society for Industrial and Applied Mathematics, 2007)
A postprocessing technique for mixed finite-element methods for the incompressible Navier–Stokes equations is analyzed. The postprocess, which amounts to solving a (linear) Stokes problem, is shown to increase the order ...
Artículo
Balanced Islands in Two Colored Point Sets in the Plane
(Elsevier, 2018)
Artículo
A maximum trip covering location problem with an alternative mode of transportation on tree networks and segments
(Sociedad Española de Estadística e Investigación Operativa, 2014)
In this paper the following facility location problem in a mixed planarnetwork space is considered: We assume that traveling along a given network is faster than traveling within the plane according to the Euclidean ...
Artículo
Complemented copies of c0 in vector-valued Köthe-Dieudonné function spaces
(Springer, 1992)
Let [Lambda] be a barrelled perfect (in the sense of J. Dieudonné) Köthe space of measurable functions defined on an atomless finite Radon measure space. Let X be a Banach space containing a copy of c0, then the space ...
Artículo
The cg-average tree value for games on cycle-free fuzzy communication structures
(Sociedad Española de Estadística e Investigación Operativa, 2019)
The main goal in a cooperative game is to obtain a fair allocation of the profit due the cooperation of the involved agents. The most known of these allocations is the Shapley value. This allocation considers that the ...
Artículo
Properties of Poincaré half-maps for planar linear systems and some direct applications to periodic orbits of piecewise systems
(University of Szeged, 2023)
This paper deals with fundamental properties of Poincaré half-maps defined on a straight line for planar linear systems. Concretely, we focus on the analyticity of the Poincaré half-maps, their series expansions (Taylor ...
Artículo
Semigroups of composition operators on Hardy spaces of Dirichlet series
(Elsevier, 2023)
We consider continuous semigroups of analytic functions {Φt}t≥0 in the so-called Gordon-Hedenmalm class G, that is, the family of analytic functions Φ:C+→C+ giving rise to bounded composition operators in the Hardy space ...
Artículo
Maximum Box Problem on Stochastic Points
(Springer, 2021-10)
Given a finite set of weighted points in Rd (where there can be negative weights), the maximum box problem asks for an axis-aligned rectangle (i.e., box) such that the sum of the weights of the points that it contains is ...
Artículo
On Pták's generalization of Hankel operators
(Springer, 2001)
In 1997 Pták defined generalized Hankel operators as follows: Given two contractions T1 ∈ B(H1) and T2 ∈ B(H2), an operator X: H1 → H2 is said to be a generalized Hankel operator if T2X = XT ∗ 1 and X satisfies a ...
Artículo
Postprocessing finite-element methods for the Navier–Stokes Equations: the Fully discrete case
(Society for Industrial and Applied Mathematics, 2008)
An accuracy-enhancing postprocessing technique for finite-element discretizations of the Navier–Stokes equations is analyzed. The technique had been previously analyzed only for semidiscretizations, and fully discrete ...