octubre 2021

Belén Pérez (Department of Statistics, Mathematics and Informatics, Miguel Hernández University) Martín González, Carmen Perea and José Juan López (Center of Operations Research, Miguel Hernández University, Elche)
Abstract: Simultaneous Equations Models (SEM) is a statistical technique widely used in economic science to model the simultaneity relationship between variables. In the past years, this technique has also been […]

Rocío Hernández, Martín González, Antonio Peñalver and José Juan López (Center of Operations Research, Miguel Hernández University, Elche)
Abstract: The presence of unaccounted heterogeneity in simultaneous equation models (SEMs) is frequently problematic in many real-life applications. Under the usual assumption of homogeneity, the model can be seriously misspecified, and it can potentially induce an important bias […]

Eduardo Conde and Marina Leal (Department of Statistics and Operations Research, Faculty of Mathematics, Campus Reina Mercedes, 41011, University of Seville)
Abstract: The design of a distribution network under uncertainty is addressed by using the minmax regret paradigm. Economic or technical uncertain factors may have a strong influence on the behavior of a distribution system and […]

Steven A. Gabriel (University of Maryland, Department of Mechanical Engineering/Applied Mathematics & Statistics, and Scientific Computation Program, College Park, MD, United States), Marina Leal (Miguel Hernández University, Department of Statistics and Operations Research, Elche) and Martin Schmidt  (Trier University, Department of Mathematics)
Abstract: Mixed complementarity problems are of great importance in practice since they appear in […]

Julio González-Díaz, Brais González-Rodríguez (Department of Statistics, Mathematical Analysis and Optimization and IMAT, University of Santiago de Compostela and MODESTYA Research Group and ITMATI (Technological Institute for Industrial Mathematics)), Marina Leal and Justo Puerto (IMUS, University of Seville )
Abstract: This paper deals with a portfolio selection problem with transaction costs and two levels of decision-making. […]

Alejandro Moya, Juan Francisco Monge and Mercedes Landete (Center of Operations Research, University Miguel Hernández)
Abstract: This paper introduces the concept of close-enough in the context of facility location. It is assumed that customers are willing to move from their homes to close-enough pickup locations. Given that the number of pickup locations is expanding every day, […]

Hipólito Hernández-Pérez, Inmaculada Rodríguez-Martín (University of La Laguna, Tenerife) and Mercedes Landete (Center of Operations Research, University Miguel Hernández)
Abstract: We present in this paper a generalization of the one-commodity pickup and delivery traveling salesman problem where each customer supplies or demands a given amount of a certain product. The objective is to design a minimum […]

Juan Carlos Ferrando (Operations Research Center, University Miguel Hernández of Elche) and Stephen A. Saxon (Department of Mathematics, University of Florida)
Abstract: Cp (X) is distinguished →the strong dual Lβ (X) is barrelled → the strong bidual M (X) = RX. So one may judge how nearly distinguished Cp (X) is by how nearly barrelled Lβ […]

Juan Carlos Ferrando (Operations Research Center, University Miguel Hernández of Elche), Jerzy Kąkol (Faculty of Mathematics and Informatics, A. Mickiewicz University, Poznan), Arkady G.  Leiderman (Ben-Gurion University of the Negev, Beer Sheba) and Stephen A. Saxon (Department of Mathematics, University of Florida)
Abstract: Unfortunately, the reference 19 is updated incorrectly in the original article and the […]

Juan Carlos Ferrando (Operations Research Center, University Miguel Hernández of Elche), Jerzy Kąkol (Faculty of Mathematics and Informatics, A. Mickiewicz University, Poznań) and Wiesław Śliwa (Institute of Mathematics, College of Natural Sciences, University of Rzeszów)
Abstract: An internal characterization of the Arkhangel’skiĭ-Calbrix main theorem from [4] is obtained by showing that the space Cp(X) of continuous real-valued […]