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Listar por Entidad UPV "Universitat Politècnica de València. Departamento de Matemática Aplicada - Departament de Matemàtica Aplicada"

Mostrando ítems 41-60 de 3225

A complex fractional mathematical modeling for the love story of Layla and Majnun

Kumar, Pushpendra; Erturk, Vedat Suat; Murillo Arcila, Marina (Elsevier, 2021-09)

[EN] In this article, we provide numerical simulations to show the importance and the effects of fractional order derivatives in psychological studies. As it is well-known, complex variables are more realistic for defining ...
A comprehensive analysis of hydrogen as a propulsion source in the shipping sector

Moreno Nicolás, Marina (Universitat Politècnica de València, 2023-10-06)

[ES] La transición a fuentes de propulsión sostenibles en el sector maritimo es de vital importancia para alcanzar los objetivos de descarbonización. En este contexto, el hidrógeno ha surgido como una alternativa muy ...
A comprehensive probabilistic analysis of SIR-type epidemiological models based on full randomized Discrete-Time Markov Chain formulation with applications

Cortés, J.-C.; El-Labany, S.K.; Navarro-Quiles, A.; Selim, Mustafa M.; Slama, H. (John Wiley & Sons, 2020-09-30)

[EN] This paper provides a comprehensive probabilistic analysis of a full randomization of approximate SIR-type epidemiological models based on discrete-time Markov chain formulation. The randomization is performed by ...
A comprehensive probabilistic solution of random SIS-type epidemiological models using the Random Variable Transformation technique

Casabán, M.C.; Cortés, J.-C.; Navarro-Quiles, A.; Romero, José-Vicente; Roselló, María-Dolores; Villanueva Micó, Rafael Jacinto (Elsevier, 2016)

[EN] This paper provides a complete probabilistic description of SIS-type epidemiological models where all the input parameters (contagion rate, recovery rate and initial conditions) are assumed to be random variables. By ...
A computational technique to predict the level of glucose of a diabetic patient with uncertainty in the short term

Burgos Simon, Clara; Cervigón, Carlos; Hidalgo, José-Ignacio; Villanueva Micó, Rafael Jacinto (John Wiley & Sons, 2019)

[EN] On advanced stages of the disease, diabetic patients have to inject insulin doses to maintain blood glucose levels inside of a healthy range. The decision of how much insulin is injected implies somehow to predict the ...
A consistent stable numerical scheme for a nonlinear option pricing model in illiquid markets

Company Rossi, Rafael; Jódar Sánchez, Lucas Antonio; Pintos Taronger, José Ramón (Elsevier, 2012-06)

Markets liquidity is an issue of very high concern in financial risk management. In a perfect liquid market the option pricing model becomes the well-known linear Black-Scholes problem. Nonlinear models appear when transaction ...
A contribution to the study of fuzzy metric spaces

Sapena Piera, Almanzor (Universitat Politècnica de València, 2001-04-01)

[EN] We give some examples nad properties of fuzzy metric spaces, in the sense of George and Veramani, and characterize the To topological spaces which admit a compatible uniformity that has a countable transitive base, ...
A convex combination approach for mean-based variants of Newton's method

Cordero Barbero, Alicia; Franceschi, Jonathan; Torregrosa Sánchez, Juan Ramón; Zagati, Anna C. (MDPI AG, 2019-09-02)

[EN] Several authors have designed variants of Newton¿s method for solving nonlinear equations by using different means. This technique involves a symmetry in the corresponding fixed-point operator. In this paper, some ...
A cutting plane algorithm for the General Routing Problem

Corberan, Angel; Letchford, Adam; Sanchís Llopis, José María (Springer-Verlag, 2001)

[EN] The General Routing Problem (GRP) is the problem of finding a minimum cost route for a single vehicle, subject to the condition that the vehicle visits certain vertices and edges of a network. It contains the Rural ...
A decision support system to assure high-performance maintenance service

Aiello, Giuseppe; Benítez López, Julio; Carpitella, Silvia; Certa, Antonella; Enea, Mario; Izquierdo Sebastián, Joaquín; La Cascia, Marco (Emerald, 2021-10-26)

[EN] Purpose This study aims to propose a decision support system (DSS) for maintenance management of a service system, namely, a street cleaning service vehicle. Referring to the information flow management, the blockchain ...
A delayed nonlinear stochastic model for cocaine consumption: Stability analysis and simulation using real data

Burgos-Simon, Clara; Cortés, J.-C.; Shaikhet, L.; Villanueva Micó, Rafael Jacinto (American Institute of Mathematical Sciences, 2021-04)

[EN] In this paper we propose a stochastic mathematical model with distributed delay in order to describe the transmission dynamics of cocaine consumption in Spain. We investigate conditions to guarantee the stability in ...
A description based on languages of the final non-deterministic automaton

Ballester-Bolinches, A.; Cosme-Llopez, E; Esteban Romero, Ramón (Elsevier, 2014-05-29)

The study of the behaviour of non-deterministic automata has traditionally focused on the languages which can be associated to the different states. Under this interpretation, the different branches that can be taken at ...
A direct method to obtain a realization of a polynomial matrix and its applications

Cantó Colomina, Rafael; Moll López, Santiago Emmanuel; Ricarte Benedito, Beatriz; Urbano Salvador, Ana María (Springer-Verlag, 2020-02-13)

[EN] In this paper we present a Silverman-Ho algorithm-based method to obtain a realization of a polynomial matrix. This method provides the final formulation of a minimal realization directly from a full rank factorization ...
A discrete mathematical model for addictive buying: Predicting the affected population evolution

García Ureta, Irene; Jódar Sánchez, Lucas Antonio; Merello Giménez, Paloma; Santonja, Francisco-José (Elsevier, 2011-10)

This paper deals with the construction of a discrete mathematical model for addictive buying. Firstly, identifications of consumers buying behavior are performed by using multivariate statistical techniques based on real ...
A Discussion on p-Geraghty Contraction on mw-Quasi-Metric Spaces

Alegre Gil, Maria Carmen; Fulga, Andreea; Karapinar, Erdal; Tirado Peláez, Pedro (MDPI AG, 2020-09)

[EN] In this paper we consider a kind of Geraghty contractions by using mw-distances in the setting of complete quasi-metric spaces. We provide fixed point theorems for this type of mappings and illustrate with some examples ...
A domain-theoretic approach to fuzzy metric spaces

Ricarte Moreno, Luis Alberto; Romaguera Bonilla, Salvador (Elsevier, 2014-02)

We introduce a partial order (sic)(M) on the set BX of formal balls of a fuzzy metric space (X, M, Lambda) in the sense of Kramosil and Michalek, and discuss some of its properties. We also characterize when the poset (BX, ...
A Duality Relationship Between Fuzzy Partial Metrics and Fuzzy Quasi-Metrics

Gregori Gregori, Valentín; Miñana, Juan-José; Miravet, David (MDPI AG, 2020-09)

[EN] In 1994, Matthews introduced the notion of partial metric and established a duality relationship between partial metrics and quasi-metrics defined on a set X. In this paper, we adapt such a relationship to the fuzzy ...
A dynamic trading rule based on filtered flag pattern recognition for stock market price forecasting

Arévalo, Rubén; García, Jorge; Guijarro, Francisco; Peris Manguillot, Alfredo (Elsevier, 2017)

[EN] In this paper we propose and validate a trading rule based on flag pattern recognition, incorporating im- portant innovations with respect to the previous research. Firstly, we propose a dynamic window scheme that ...
A dynamical comparison between iterative methods with memory: Are the derivatives good for the memory?

Cordero Barbero, Alicia; Jordan-Lluch, Cristina; Torregrosa Sánchez, Juan Ramón (Elsevier, 2017)

[EN] The role of the derivatives at the iterative expression of methods with memory for solving nonlinear equations is analyzed in this manuscript. To get this aim, a known class of methods without memory is transformed ...
A Factor Analysis Approach to Determining a Small Number of Parameters for Characterising Halls

Cerdá Jordá, Salvador; Giménez Pérez, Alicia; Romero Faus, José; Cibrián Ortíz de Anda, Rosa (Hirzel Verlag (S. Hirzel Verlag), 2011-05)

Specialist bibliographies reveal that there are many parameters for fully describing the acoustics of a hall. Are all of these parameters absolutely necessary? Although hall acoustics is a complex discipline, we can ...