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Artículo
Optimal extensions for positive order continuous operators on Banach functions spaces
(Cambridge University Press, 2014)
In this paper we give conditions under which a positive order continuous operator T defined on a Banach function space can be extended, preserving the order continuity in a certain optimal way. The optimal domain for T ...
Artículo
Gradation in Greyscales of Graphs
(Cornell University, 2016)
In this work we present the notion of greyscale of a graph as a colouring of its vertices that uses colours from the real interval [0,1]. Any greyscale induces another colouring by assigning to each edge the non-negative ...
Artículo
Locating optimal timetables and vehicle schedules in a transit line
(Springer, 2014)
This paper deals with the Transit Network Timetabling and Scheduling Problem (TNTSP) in a public transit line. The TNTSP aims at determining optimal timetables for each line in a transit network by establishing departure ...
Artículo
A short-turning policy for the management of demand disruptions in rapid transit systems
(Springer, 2016)
Rapid transit systems timetables are commonly designed to accommodate passenger demand in sections with the highest passenger load. However, disruptions frequently arise due to an increase in the demand, infrastructure ...
Artículo
Analyzing the theoretical capacity of railway networks with a radial-backbone topology
(Elsevier, 2016)
In this work we propose a mechanism to optimize the capacity of the main corridor within a railway network with a radial-backbone or X-tree structure. The radial-backbone (or Xtree) structure is composed of two types of ...
Artículo
Erratum to: Strong extensions for q-summing operators acting in p-convex Banach function spaces for 1≤p≤q Weak* compactness of the closed unit ball of a Köthe dual space
(Springer, 2017)
Let X be a saturated Banach function space and denote by X′ its Köthe dual. In the paper (Delgado and Sánchez Pérez in Positivity 20:999–1014, 2016) referenced in the title it is implicitly used that the closed unit ball ...
Artículo
Interpolation with a parameter function of Lp-spaces with respect to a vector measure on a δ-ring
(Tusi Mathematical Research Group, 2016)
Let ν be a σ-finite Banach-space-valued measure defined on a δ-ring. We find a wide class of measures ν for which interpolation with a parameter function of couples of Banach lattices of p-integrable and weakly p-integrable ...
Artículo
An exact algebraic ϵ-constraint method for bi-objective linear integer programming based on test sets
(Elsevier, 2020)
A new exact algorithm for bi-objective linear integer problems is presented, based on the classic - constraint method and algebraic test sets for single-objective linear integer problems. Our method pro- vides the complete ...
Artículo
On the Ramsey numbers for stars versus complete graphs
(Elsevier, 2010)
For graphs G1, . . . , Gs, the multicolor Ramsey number R(G1, . . . , Gs) is the smallest integer r such that if we give any edge col-oring of the complete graph on r vertices with s colors then there exists a monochromatic copy ...
Artículo
Planning Rapid Transit Networks
(Elsevier, 2011)
Rapid transit construction projects are major endeavours that require long-term planning by several players, including politicians, urban planners, engineers, management consultants, and citizen groups. Traditionally, ...