Perfil (CV) del personal docente investigador

Delgado Gracia, Jorge
Departamento: Departamento de Matemática Aplicada
Área: Matemática Aplicada
Centro: Escuela de Ingeniería y Arquitectura

Research Institute: INSTITUTO UNIVERSITARIO DE MATEMÁTICAS Y APLICACIONES (IUMA)
Grupo: E41_23R: Análisis Numérico, Optimización y Aplicaciones

Tramos de investigación
  • CNEAI research evaluation. 01/01/20
  • CNEAI research evaluation. 01/01/14
  • CNEAI research evaluation. 01/01/10
Categoría profesional: Prof. Titular Univ.

Cargos
  • Coordinador de Máster Universitario en Modelización e investigación matemática, estadística y computación
Correo electrónico: jorgedel@unizar.es


 
         

Artículos

  • Delgado, Jorge; Orera, Héctor; Peña, Juan Manuel. Accurate Computations with Generalized Pascal k-Eliminated Functional Matrices. MATHEMATICS. 2025. DOI: 10.3390/math13020303

  • Delgado, Jorge; Peña, J. M. High-relative-accuracy computations with Kac-Murdock-Szegö matrices and their generalizations. COMPUTATIONAL & APPLIED MATHEMATICS. 2025. DOI: 10.1007/s40314-025-03137-7

  • Delgado, Jorge; Orera, Héctor; Peña, Juan Manuel. High Relative Accuracy With Collocation Matrices of q$$ q $$-Jacobi Polynomials. NUMERICAL LINEAR ALGEBRA WITH APPLICATIONS. 2025. DOI: 10.1002/nla.2602

  • Ballarín, Jorge; Delgado, Jorge; Peña, Juan Manuel. High Relative Accuracy for Corner Cutting Algorithms. AXIOMS. 2025. DOI: 10.3390/axioms14040248

  • Delgado, Jorge; Peña, Guillermo; Peña, Juan Manuel. Accurate Computations with Generalized Green Matrices. SYMMETRY. 2024. DOI: 10.3390/sym16081004

  • Delgado, Jorge; Orera, Héctor; Peña, J.M. High relative accuracy for rational q-Bernstein–Vandermonde matrices. LINEAR AND MULTILINEAR ALGEBRA. 2024. DOI: 10.1080/03081087.2024.2304686

  • Delgado, Jorge; Koev, Plamen; Marco, Ana; Martínez, José-Javier; Peña, Juan Manuel; Persson, Per-Olof; Spasov, Steven. Accurate bidiagonal decompositions of Cauchy–Vandermonde matrices of any rank. NUMERICAL LINEAR ALGEBRA WITH APPLICATIONS. 2024. DOI: 10.1002/nla.2579

  • Delgado, Jorge; Orera, Héctor; Peña, J. M. Accurate computations with block checkerboard pattern matrices. MATHEMATICS. 2024. DOI: 10.3390/math12060853

  • Delgado, Jorge; Peña, Guillermo; Peña, Juan Manuel. Accurate and fast computations with Green matrices. APPLIED MATHEMATICS LETTERS. 2023. DOI: 10.1016/j.aml.2023.108778

  • Delgado, J.; Orera, H.; Peña, J.M. An evaluation algorithm for q-Bézier triangular patches formed by convex combinations. JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS. 2023. DOI: 10.1016/j.cam.2023.115184

  • Delgado, Jorge; Peña, Juan Manuel. High relative accuracy with some special matrices related to G and ß functions. NUMERICAL LINEAR ALGEBRA WITH APPLICATIONS. 2023. DOI: 10.1002/nla.2494

  • Delgado, Jorge; Koev, Plamen; Marco, Ana; Martínez, José-Javier; Peña, Juan Manuel; Persson, Per-Olof; Spasov, Steven. Bidiagonal decompositions of Vandermonde-type matrices of arbitrary rank. JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS. 2023. DOI: 10.1016/j.cam.2023.115064

  • Delgado, J.; Mainar, E.; Peña, J.M. On the accuracy of de Casteljau-type algorithms and Bernstein representations. COMPUTER AIDED GEOMETRIC DESIGN. 2023. DOI: 10.1016/j.cagd.2023.102243

  • Delgado, Jorge; Peña, Guillermo; Peña, Juan Manuel. Green Matrices, Minors and Hadamard Products. AXIOMS. 2023. DOI: 10.3390/axioms12080774

  • Delgado, J.; Orera, H.; Peña, J.M. Characterizations and accurate computations for tridiagonal Toeplitz matrices. LINEAR AND MULTILINEAR ALGEBRA. 2022. DOI: 10.1080/03081087.2021.1884180

  • Delgado, J.; Orera, H.; Peña, J.M. Accurate bidiagonal decomposition and computations with generalized Pascal matrices. JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS. 2021. DOI: 10.1016/j.cam.2021.113443

  • Delgado J.; Orera H.; Peña J.M. High relative accuracy with matrices of q-integers. NUMERICAL LINEAR ALGEBRA WITH APPLICATIONS. 2021. DOI: 10.1002/nla.2383

  • Delgado, Jorge; Peña, Juan Manuel. Evaluation of curves and surfaces by methods based on differential equations and CAGD. INTERNATIONAL JOURNAL OF NUMERICAL ANALYSIS AND MODELING. 2021

  • Delgado Gracia, J; Orera, H; Peña Ferrández, Jm. Optimal properties of tensor product of B-bases. APPLIED MATHEMATICS LETTERS. 2021. DOI: 10.1016/j.aml.2021.107473

  • Delgado Gracia, J. Compensated evaluation of tensor product surfaces in CAGD. MATHEMATICS. 2020. DOI: 10.3390/math8122219

  • Delgado, Jorge; Peña, J.M. Geometric properties and algorithms for rational q-Bézier curves and surfaces. MATHEMATICS. 2020. DOI: 10.3390/math8040541

  • Delgado, J.; Peña, J.M. Extremal and optimal properties of B-bases collocation matrices. NUMERISCHE MATHEMATIK. 2020. DOI: 10.1007/s00211-020-01135-x

  • Delgado, Jorge; Orera, Héctor; Peña, J.M. Accurate Algorithms for Bessel Matrices. JOURNAL OF SCIENTIFIC COMPUTING. 2019. DOI: 10.1007/s10915-019-00975-6

  • García-Magariño, I.; Medrano, C.; Delgado, J. Estimation of missing prices in real-estate market agent-based simulations with machine learning and dimensionality reduction methods. NEURAL COMPUTING AND APPLICATIONS. 2019. DOI: 10.1007/s00521-018-3938-7

  • Delgado, J.; Orera, H.; Peña, J.M. Accurate computations with Laguerre matrices. NUMERICAL LINEAR ALGEBRA WITH APPLICATIONS. 2018. DOI: 10.1002/nla.2217

  • Delgado, J.; Peña, J. M. Accurate computations with Lupas matrices. APPLIED MATHEMATICS AND COMPUTATION. 2017. DOI: 10.1016/j.amc.2017.01.031

  • Delgado, J.; Peña, G.; Peña, J.M. Accurate and fast computations with positive extended Schoenmakers–Coffey matrices. NUMERICAL LINEAR ALGEBRA WITH APPLICATIONS. 2016. DOI: 10.1002/nla.2066

  • Delgado, J.; Peña, J. M. Algorithm 960: Polynomial: An object-oriented matlab library of fast and efficient algorithms for polynomials. ACM TRANSACTIONS ON MATHEMATICAL SOFTWARE. 2016. DOI: 10.1145/2814567

  • Delgado Gracia, Jorge; Peña Ferrández, Juan Manuel. Monotonicity preserving representations of curves and surfaces. APPLIED MATHEMATICS AND NONLINEAR SCIENCES. 2016. DOI: 10.21042/AMNS.2016.2.00041

  • Delgado, J.; Peña, J. M. Accurate computations with collocation matrices of q-bernstein polynomials. SIAM JOURNAL ON MATRIX ANALYSIS AND APPLICATIONS. 2015. DOI: 10.1137/140993211

  • Delgado, J.; Peña, J.M. Accurate evaluation of Bézier curves and surfaces and the Bernstein-Fourier algorithm. APPLIED MATHEMATICS AND COMPUTATION. 2015. DOI: 10.1016/j.amc.2015.08.086

  • Delgado, J.; Peña, J. M. Fast and accurate algorithms for Jacobi-Stirling matrices. APPLIED MATHEMATICS AND COMPUTATION. 2014. DOI: 10.1016/j.amc.2014.03.047

  • Alonso, Pedro; Delgado, Jorge; Gallego, Rafael; Peña, J.M. Conditioning and accurate computations with Pascal matrices. JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS. 2013. DOI: 10.1016/j.cam.2011.12.007

  • Delgado,J.;Pena,J. M. Accurate computations with collocation matrices of rational bases. APPLIED MATHEMATICS AND COMPUTATION. 2013. DOI: 10.1016/j.amc.2012.10.019

  • Delgado,J.;Peña,J. M. On the evaluation of rational triangular Bézier surfaces and the optimal stability of the basis. ADVANCES IN COMPUTATIONAL MATHEMATICS. 2013. DOI: 10.1007/s10444-011-9256-6

  • Carnicer, J. M.;Delgado, J.;Peña, J. M. Richardson's iterative method for surface interpolation. BIT NUMERICAL MATHEMATICS. 2013. DOI: 10.1007/s10543-012-0411-3

  • Delgado,J.;Peña,J. M. Optimality of Bernstein representations for computational purposes. RELIABLE COMPUTING. 2012

  • Alonso, P.;Delgado, J.;Gallego, R.;Peña, J. M. A note on matrices with maximal growth factor for Neville elimination. JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS. 2012. DOI: 10.1016/j.cam.2011.07.007

  • Carnicer, J.M.; Delgado, J.; Peña, J.M. Progressive iteration approximation and the geometric algorithm. COMPUTER AIDED DESIGN. 2012. DOI: 10.1016/j.cad.2011.01.018

  • Delgado, J.;Peña, J. M. Running error for the evaluation of rational Bézier surfaces through a robust algorithm. JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS. 2011. DOI: 10.1016/j.cam.2010.04.031

  • Carnicer,J. M.;Delgado,J.;Peña,J. M. On the progressive iteration approximation property and alternative iterations. COMPUTER AIDED GEOMETRIC DESIGN. 2011. DOI: 10.1016/j.cagd.2011.09.005

  • Alonso, P.;Delgado, J.;Gallego, R. ;Peña, J. M. Growth factors of pivoting strategies associated with Neville elimination. JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS. 2011. DOI: 10.1016/j.cam.2009.11.012

  • Alonso, P.;Delgado, J.;Gallego, R. ;Peña, J. M. A collection of examples where Neville elimination outperforms Gaussian elimination. APPLIED MATHEMATICS AND COMPUTATION. 2010

  • Alonso, P.;Delgado, J.;Gallego, R. ;Peña, J. M. Neville elimination: An efficient algorithm with application to chemistry. JOURNAL OF MATHEMATICAL CHEMISTRY. 2010

  • Carnicer, J. M.;Delgado, J. ;Peña, J. M. Richardson method and totally nonnegative linear systems. LINEAR ALGEBRA AND ITS APPLICATIONS. 2010

  • Delgado, J.;Peña, J. M. Running error for the evaluation of rational Bézier surfaces. JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS. 2010

  • Delgado, Jorge; Peña, Juan Manuel. A comparison of different progressive iteration approximation methods. LECTURE NOTES IN COMPUTER SCIENCE. 2010. DOI: 10.1007/978-3-642-11620-9_10

  • Carnicer, Jesús; Delgado, Jorge. Mean distance from a curve to its control polygon. LECTURE NOTES IN COMPUTER SCIENCE. 2010. DOI: 10.1007/978-3-642-11620-9_7

  • Delgado, J.;Peña,J. M. Optimal Conditioning of Bernstein Collocation Matrices. SIAM JOURNAL ON MATRIX ANALYSIS AND APPLICATIONS. 2009

  • Delgado, J.;Peña,J. M. Running Relative Error for the Evaluation of Polynomials. SIAM JOURNAL ON SCIENTIFIC COMPUTING. 2009

  • Delgado, J.;Peña,J. M. Computation of the Eigenvalues of Convexity Preserving Matrices. APPLIED MATHEMATICS LETTERS. 2009. DOI: 10.1016/j.aml.2008.03.031

  • Alonso, P.;Delgado,J.;Gallego,R.;Peña,J. M. Iterative Refinement for Neville Elimination. INTERNATIONAL JOURNAL OF COMPUTER MATHEMATICS. 2009. DOI: 10.1080/00207160802044134

  • Delgado, J.;Peña,J. M. Error Analysis of Efficient Evaluation Algorithms for Tensor Product Surfaces. JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS. 2008. DOI: 10.1016/j.cam.2007.07.020

  • Delgado, J.;Peña,J. M. A Corner Cutting Algorithm for Evaluating Rational Bezier Surfaces and the Optimal Stability of the Basis. SIAM JOURNAL ON SCIENTIFIC COMPUTING. 2007. DOI: 10.1137/060649148

  • Delgado, J.;Peña,J. M. Are Rational Bezier Surfaces Monotonicity Preserving?. COMPUTER AIDED GEOMETRIC DESIGN. 2007. DOI: 10.1016/j.cagd.2007.03.006

  • Delgado, J.;Peña,J. M. Progressive Iterative Approximation and Bases with the Fastest Convergence Rates. COMPUTER AIDED GEOMETRIC DESIGN. 2007. DOI: 10.1016/j.cagd.2006.10.001

  • Delgado,J.;Pena,J. On the generalized Ball bases. ADVANCES IN COMPUTATIONAL MATHEMATICS. 2006

  • Delgado, J.;Peña, J.M. Corner cutting systems. COMPUTER AIDED GEOMETRIC DESIGN. 2005

  • Barrio, Roberto;Delgado, Jorge. Trayectorias de los ceros de los polinomios ortogonales de Sobolev-Gegenbauer. REVISTA DE LA ACADEMIA DE CIENCIAS EXACTAS, FÍSICO-QUÍMICAS Y NATURALES DE ZARAGOZA. 2004

  • Delgado, J.;Peña, J. M. A Shape Preserving Representation With an Evaluation Algorithm of Linear Complexity. COMPUTER AIDED GEOMETRIC DESIGN. 2003

Libros

  • [Coordinación y textos, equipo directivo de la EUPT]. Fragmentos de historia: Escuela Universitaria Politécnica de Teruel : XXV años de enseñanza de ingeniería. 2015

Capítulos

  • Jorge Delgado, Héctor Orera and Juan Manuel Peña. Corner cutting algorithms for Q-Bézier curves and surfaces. SIXTEENTH INTERNATIONAL CONFERENCE ZARAGOZA-PAU ON MATHEMATICS AND ITS APPLICATIONS: JACA (SPAIN), SEPTEMBER 7-9, 2022. 2024

  • Blended learning in electronics and automation engineering: a study of software and hardware needs for practical teaching. Aragüés, R; Gil, E; Igual, R; Medrano, C; Delgado, J; Albiol, S; Romero, F; García, JC; Perez R;. EDULEARN17 PROCEEDINGS. 2017

  • Using big data for improving students' skills in the development of scalable decision support systems. García-Magariño García, Iván; Plaza, Inmaculada; Delgado Gracia, Jorge; Lacuesta, Raquel; Igual, Raúl; Bielsa-Hernández, Javier; Álvarez-Arguedas, Diego. EDULEARN17 PROCEEDINGS. 2017

  • Axially Monotonicity Preserving Curves and Surfaces. Delgado Gracia, Jorge; Peña Ferrández, J. M. PROCEEDINGS OF THE 3RD INTERNATIONAL CONFERENCE ON MATHEMATICAL, COMPUTATIONAL AND STATISTICAL SCIENCES (MCSS'15), MATHEMATICS AND COMPUTERS IN SCIENCE AND ENGINEERING SERIES. 2015

  • Growth Factors of Pivoting Strategies Associated to Neville Elimination. Alonso, Pedro; Delgado, Jorge; Gallego, Rafa; Peña, Juan Manuel. PROCEEDINGS OF THE 2009 INTERNATIONAL CONFERENCE ON COMPUTATIONAL AND MATHEMATICAL METHODS IN SCIENCE AND ENGINEERING (CMMSE 2009). 2009

  • Interpolation of a Data Point Set Using the Progressive Iteration Approximation Property. Delgado, Jorge; Peña, Juan Manuel. COMPUTER-AIDED DESIGN AND OTHER COMPUTING RESEARCH DEVELOPMENTS. 2009

  • On Efficient Algorithms for the Evaluation of Rational Tensor Product Surfaces. Delgado, Jorge; Peña, Juan Manuel. MATHEMATICAL METHODS FOR CURVES AND SURFACES: TROMSO 2004. 2005

  • On efficient algorithms for polynomial evaluation in CAGD. Delgado, Jorge; Peña, Juan Manuel. VIII JOURNÉES ZARAGOZA–PAU DE MATHÉMATIQUES APPLIQU ÉEES ET DE STATISTIQUES. 2004

  • A linear complexity algorithm for the Bernstein basis. Delgado, Jorge; Peña, Juan Manuel. GEOMETRIC MODELING AND GRAPHICS, 2003. PROCEEDINGS. 2003 INTERNATIONAL CONFERENCE ON. 2003

  • A shape preserving representation for rational curves with efficient evaluation algorithm. Delgado, Jorge; Peña, Juan Manuel. ADVANCES IN GEOMETRIC MODELING. 2003

  • Monotonicity preservation of some polynomial and rational representations. Delgado, Jorge; Peña, Juan Manuel. INFORMATION VISUALISATION, 2002. PROCEEDINGS. SIXTH INTERNATIONAL CONFERENCE ON. 2002



© Universidad de Zaragoza | Versión 2.28.0
© Servicio de Informática y Comunicaciones de la Universidad de Zaragoza (Pedro Cerbuna 12, 50009 ZARAGOZA - ESPAÑA)