Now showing items 190-203 of 203

    • Terminal value problem for differential equations with Hilfer–Katugampola fractional derivative 

      Benchohra, Mouffak; Bouriah, Soufyane; Nieto Roig, Juan José (MDPI, 2019)
      We present in this work the existence results and uniqueness of solutions for a class of boundary value problems of terminal type for fractional differential equations with the Hilfer–Katugampola fractional derivative. ...
    • Testing for signif cant differences between two spatial patterns using covariates 

      Borrajo García, María Isabel; González Manteiga, Wenceslao; Martínez Miranda, María Dolores (Elsevier, 2019)
      This paper addresses the problem of comparing the spatial distribution of two point patterns. A formal statistical test is proposed to decide whether two observed patterns share the same theoretical intensity model. ...
    • Testing for the equality of k regression curves 

      Pardo Fernández, Juan Carlos; Keilegom, Ingrid van; González Manteiga, Wenceslao (Academia Sinica, Institute of Statistical Science, 2007)
      Assume that (Xj , Yj ) are independent random vectors satisfying the nonparametric regression models Yj = mj (Xj ) + σj (Xj )εj , for j = 1, . . . , k, where mj (Xj ) = E(Yj |Xj ) and σ 2 j (Xj ) = Var (Yj |Xj ) are ...
    • Testing in generalized partially linear models: A robust approach 

      Boente Boente, Graciela; Cao Abad, Ricardo José; González Manteiga, Wenceslao; Rodríguez, Daniela (Elsevier, 2013)
      In this paper, we introduce a family of robust statistics which allow to decide between a parametric model and a semiparametric one. More precisely, under a generalized partially linear model, i.e., when the observations ...
    • The DDG-classifier in the functional setting 

      Cuesta Albertos, Juan A.; Febrero Bande, Manuel; Oviedo de la Fuente, Manuel (Springer, 2017)
      The maximum depth classifier was the first attempt to use data depths instead of multivariate raw data in classification problems. Recently, the DD-classifier has addressed some of the serious limitations of this classifier ...
    • The eigenvalue characterization for the constant sign Green’s functions of (k,n−k)(k,n−k) problems 

      Cabada Fernández, Alberto; Saavedra López, Lorena (Springer International Publishing, 2016-02-11)
      This paper is devoted to the study of the sign of the Green’s function related to a general linear nth-order operator, depending on a real parameter, Tn[M]Tn[M], coupled with the (k,n−k)(k,n−k) boundary value conditions. If ...
    • The impact of immigration and vaccination in reducing the incidence of hepatitis B in Catalonia (Spain) 

      Oviedo de la Fuente, Manuel; Muñoz Gracia, María del Pilar; Carmona i Parcerisa, Glòria; Borràs, Eva; Batalla Clavell, Joan; Soldevila, Nuria; Domínguez García, Ángela (BioMed Central, 2012)
      Background The Hepatitis B virus (HBV) infection is a major cause of liver disease and liver cancer worldwide according to the World Health Organization. Following acute HBV infection, 1-5% of infected healthy adults and ...
    • The importance of interlinguistic similarity and stable bilingualism when two languages compete 

      Mira Pérez, Jorge; Seoane, Luis F.; Nieto Roig, Juan José (IOP Publishing, 2011)
      One approach for analyzing the dynamics of two languages in competition is to fit historical data for the number of speakers of each with a mathematical model in which the parameters are interpreted as the similarity between ...
    • The importance of interlinguistic similarity and stable bilingualism when two languages compete 

      Mira Pérez, Jorge; Seoane, Luis F.; Nieto Roig, Juan José (IOP Publishing, 2011)
      One approach for analyzing the dynamics of two languages in competition is to fit historical data for the number of speakers of each with a mathematical model in which the parameters are interpreted as the similarity between ...
    • The Monotone Iterative Technique for Three-Point Second-Order Integrodifferential Boundary Value Problems with p-Laplacian 

      Ahmad, Bashir; Nieto Roig, Juan José (Springer, 2007)
      A monotone iterative technique is applied to prove the existence of the extremal positive pseudosymmetric solutions for a three-point second-order p-Laplacian integrodifferential boundary value problem.
    • The number of reduced alignments between two DNA sequences 

      Andrade, Helena; Area Carracedo, Iván Carlos; Nieto Roig, Juan José; Torres Iglesias, Ángela Juana (BioMed Central, 2014)
      Background In this study we consider DNA sequences as mathematical strings. Total and reduced alignments between two DNA sequences have been considered in the literature to measure their similarity. Results for explicit ...
    • Twin Hypercube for Intuitionistic Fuzzy Sets and Their Application in Medicine 

      Davvaz, B.; Sadrabadi, E. Hassani; Nieto Roig, Juan José; Torres Iglesias, Ángela Juana (Etamaths Publishing, 2017)
      In this paper, we present a description of intuitionistic fuzzy sets as vectors in twin hypercube. Finally we verify an application of intuitionistic fuzzy sets in medicine using twin hypercube for intuitionistic fuzzy sets.
    • Validation of an AutoRegressive Integrated Moving Average model for the prediction of animal zone temperature in a weaned piglet building 

      Ortega Martínez, Juan Antonio; Losada, Eugenio; Besteiro Doval, Roberto; Arango López, Tamara; Ginzo Villamayor, María José; Velo Sabín, Ramón Luis; Fernández Rodríguez, María Dolores; Rodríguez Rodríguez, Manuel Ramiro (Elsevier, 2018)
      An AutoRegressive Integrated Moving Average model was validated for the prediction of temperatures in the animal zone of conventional weaned piglet barn. The validation period covered seven cycles and recorded values at ...
    • A Viral Infection Model with a Nonlinear Infection Rate 

      Yu, Yumei; Nieto Roig, Juan José; Torres Iglesias, Ángela Juana; Wang, Kaifa (SpringerOpen, 2009)
      A viral infection model with a nonlinear infection rate is constructed based on empirical evidences. Qualitative analysis shows that there is a degenerate singular infection equilibrium. Furthermore, bifurcation of cusp-type ...





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