J. Rafael Sendra

According to our database, J. Rafael Sendra authored at least 112 papers between 1987 and 2024.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of three.

2024

Conditions for eigenvalue configurations of two real symmetric matrices: a signature approach.

Hoon Hong, Daniel Profili, J. Rafael Sendra

CoRR, 2024

Algorithm for globally identifiable reparametrizions of ODEs.

Sebastian Falkensteiner, Alexey Ovchinnikov, J. Rafael Sendra

CoRR, 2024

Conditions for eigenvalue configurations of two real symmetric matrices: a symmetric function approach.

Hoon Hong, Daniel Profili, J. Rafael Sendra

CoRR, 2024

2023

Algebraic and Puiseux series solutions of systems of autonomous algebraic ODEs of dimension one in several variables.

José Cano, Sebastian Falkensteiner, Daniel Robertz, J. Rafael Sendra

J. Symb. Comput., 2023

Rational Solutions of Parametric First-Order Algebraic Differential Equations.

Sebastian Falkensteiner, J. Rafael Sendra

CoRR, 2023

On real and observable realizations of input-output equations.

Sebastian Falkensteiner, Dmitrii Pavlov, J. Rafael Sendra

CoRR, 2023

Sufficient conditions for the surjectivity of radical curve parametrizations.

Jorge Caravantes, J. Rafael Sendra, David Sevilla, Carlos Villarino

CoRR, 2023

2022

Existence and convergence of Puiseux series solutions for autonomous first order differential equations.

José Cano, Sebastian Falkensteiner, J. Rafael Sendra

J. Symb. Comput., 2022

Inner Bohemian inverses.

Eunice Y. S. Chan, Robert M. Corless, Laureano González-Vega, J. Rafael Sendra, Juana Sendra

Appl. Math. Comput., 2022

2021

Algebraic, Rational and Puiseux Series Solutions of Systems of Autonomous Algebraic ODEs of Dimension One.

José Cano, Sebastian Falkensteiner, J. Rafael Sendra

Math. Comput. Sci., 2021

Covering rational surfaces with rational parametrization images.

Jorge Caravantes, J. Rafael Sendra, David Sevilla, Carlos Villarino

CoRR, 2021

Representations and symbolic computation of generalized inverses over fields.

Predrag S. Stanimirovic, Miroslav Ciric, Alberto Lastra, Juan Rafael Sendra, Juana Sendra

Appl. Math. Comput., 2021

2020

Solving First Order Autonomous Algebraic Ordinary Differential Equations by Places.

Sebastian Falkensteiner, J. Rafael Sendra

Math. Comput. Sci., 2020

Transforming ODEs and PDEs with radical coefficients into rational coefficients.

Jorge Caravantes, J. Rafael Sendra, David Sevilla, Carlos Villarino

CoRR, 2020

Moore-Penrose approach in the Hough transform framework.

Mauro Carlo Beltrametti, J. Rafael Sendra, Juana Sendra, Maria-Laura Torrente

Appl. Math. Comput., 2020

A Maple Package to Deal with the Birationality of Curves and Surfaces Parametrizations.

Jorge Caravantes, Sonia Pérez-Díaz, J. Rafael Sendra

Proceedings of the Maple in Mathematics Education and Research - 4th Maple Conference, 2020

Puiseux Series and Algebraic Solutions of First Order Autonomous AODEs - A MAPLE Package.

François Boulier, José Cano, Sebastian Falkensteiner, J. Rafael Sendra

Proceedings of the Maple in Mathematics Education and Research - 4th Maple Conference, 2020

2019

Distortion-Free Instantaneous Multifrequency Saturator for THD Current Reduction.

Javier Moriano, Mario Rizo, Emilio Bueno, J. Rafael Sendra, Raúl Mateos

IEEE Trans. Ind. Electron., 2019

Upper Hessenberg and Toeplitz Bohemians.

Eunice Y. S. Chan, Robert M. Corless, Laureano González-Vega, J. Rafael Sendra, Juana Sendra

CoRR, 2019

A Maple Package for the Symbolic Computation of Drazin Inverse Matrices with Multivariate Transcendental Functions Entries.

Jorge Caravantes, J. Rafael Sendra, Juana Sendra

Proceedings of the Maple in Mathematics Education and Research - Third Maple Conference, 2019

An Application of Computer Algebra and Dynamical Systems.

Predrag S. Stanimirovic, Yiming Wei, Dejan Kolundzija, Juan Rafael Sendra, Juana Sendra

Proceedings of the Algebraic Informatics - 8th International Conference, 2019

2018

r-norm bounds and metric properties for zero loci of real analytic functions.

Maria-Laura Torrente, Mauro Carlo Beltrametti, J. Rafael Sendra

J. Comput. Appl. Math., 2018

Rational general solutions of systems of first-order algebraic partial differential equations.

Georg Grasegger, Alberto Lastra, J. Rafael Sendra, Franz Winkler

J. Comput. Appl. Math., 2018

Bohemian Upper Hessenberg Toeplitz Matrices.

Eunice Y. S. Chan, Robert M. Corless, Laureano González-Vega, J. Rafael Sendra, Juana Sendra, Steven E. Thornton

CoRR, 2018

Bohemian Upper Hessenberg Matrices.

Eunice Y. S. Chan, Robert M. Corless, Laureano González-Vega, J. Rafael Sendra, Juana Sendra, Steven E. Thornton

CoRR, 2018

Formal Power Series Solutions of First Order Autonomous Algebraic Ordinary Differential Equations.

Sebastian Falkensteiner, J. Rafael Sendra

CoRR, 2018

Cissoid constructions of augmented rational ruled surfaces.

J. Rafael Sendra, Martin Peternell, Juana Sendra

Comput. Aided Geom. Des., 2018

The Importance of Being Zero.

Tomás Recio, J. Rafael Sendra, Carlos Villarino

Proceedings of the 2018 ACM on International Symposium on Symbolic and Algebraic Computation, 2018

2017

Covering rational ruled surfaces.

J. Rafael Sendra, David Sevilla, Carlos Villarino

Math. Comput., 2017

Resultants over commutative idempotent semirings I: Algebraic aspect.

Hoon Hong, Yonggu Kim, Georgy Scholten, J. Rafael Sendra

J. Symb. Comput., 2017

Algebraic and algorithmic aspects of radical parametrizations.

J. Rafael Sendra, David Sevilla, Carlos Villarino

Comput. Aided Geom. Des., 2017

Computation of Moore-Penrose generalized inverses of matrices with meromorphic function entries.

J. Rafael Sendra, Juana Sendra

Appl. Math. Comput., 2017

Fitness Landscape Analysis in the Optimization of Coefficients of Curve Parametrizations.

Stephan M. Winkler, J. Rafael Sendra

Proceedings of the Computer Aided Systems Theory - EUROCAST 2017, 2017

2016

Foreword.

J. Rafael Sendra, Dongming Wang, Jing Yang

Math. Comput. Sci., 2016

On tubular vs. swung surfaces.

Tomás Recio, J. Rafael Sendra, Luis Felipe Tabera, Carlos Villarino

J. Symb. Comput., 2016

Corrigendum to: A heuristic and evolutionary algorithm to optimize the coefficients of curve parametrizations [J. Comput. Appl. Math. 305 (2016) 18-35].

J. Rafael Sendra, Stephan M. Winkler

J. Comput. Appl. Math., 2016

A heuristic and evolutionary algorithm to optimize the coefficients of curve parametrizations.

J. Rafael Sendra, Stephan M. Winkler

J. Comput. Appl. Math., 2016

Symbolic computation of Drazin inverses by specializations.

J. Rafael Sendra, Juana Sendra

J. Comput. Appl. Math., 2016

A solution method for autonomous first-order algebraic partial differential equations.

Georg Grasegger, Alberto Lastra, J. Rafael Sendra, Franz Winkler

J. Comput. Appl. Math., 2016

Algebro-geometric analysis of bisectors of two algebraic plane curves.

Mario Fioravanti, J. Rafael Sendra

Comput. Aided Geom. Des., 2016

2015

Some Results on the Surjectivity of Surface Parametrizations.

J. Rafael Sendra, David Sevilla, Carlos Villarino

Proceedings of the Computer Algebra and Polynomials, 2015

Computing the singularities of rational surfaces.

Sonia Pérez-Díaz, J. Rafael Sendra, Carlos Villarino

Math. Comput., 2015

Birational transformations preserving rational solutions of algebraic ordinary differential equations.

Lam Xuan Châu Ngô, J. Rafael Sendra, Franz Winkler

J. Comput. Appl. Math., 2015

An approximate algorithm to parametrize algebraic curves.

Sonia L. Rueda, Juana Sendra, J. Rafael Sendra

ACM Commun. Comput. Algebra, 2015

Missing sets in rational parametrizations of surfaces of revolution.

J. Rafael Sendra, Carlos Villarino, David Sevilla

Comput. Aided Des., 2015

Gröbner basis computation of Drazin inverses with multivariate rational function entries.

Juana Sendra, J. Rafael Sendra

Appl. Math. Comput., 2015

2014

Factoring analytic multivariate polynomials and non-standard Cauchy-Riemann conditions.

Tomás Recio, J. Rafael Sendra, Luis Felipe Tabera, Carlos Villarino

Math. Comput. Simul., 2014

Rational Hausdorff divisors: A new approach to the approximate parametrization of curves.

Sonia L. Rueda, Juana Sendra, J. Rafael Sendra

J. Comput. Appl. Math., 2014

Bounding and estimating the Hausdorff distance between real space algebraic curves.

Sonia L. Rueda, Juana Sendra, J. Rafael Sendra

Comput. Aided Geom. Des., 2014

Ultraquadrics associated to affine and projective automorphisms.

Tomás Recio, Luis Felipe Tabera, J. Rafael Sendra, Carlos Villarino

Appl. Algebra Eng. Commun. Comput., 2014

Reparametrizing swung surfaces over the reals.

Carlos Andradas, Tomás Recio, J. Rafael Sendra, Luis Felipe Tabera, Carlos Villarino

Appl. Algebra Eng. Commun. Comput., 2014

Covering of surfaces parametrized without projective base points.

J. Rafael Sendra, David Sevilla, Carlos Villarino

Proceedings of the International Symposium on Symbolic and Algebraic Computation, 2014

On Symbolic Solutions of Algebraic Partial Differential Equations.

Georg Grasegger, Alberto Lastra, J. Rafael Sendra, Franz Winkler

Proceedings of the Computer Algebra in Scientific Computing - 16th International Workshop, 2014

2013

Behavior of the Fiber and the Base Points of Parametrizations Under Projections.

Sonia Pérez-Díaz, J. Rafael Sendra

Math. Comput. Sci., 2013

An algorithm to parametrize approximately space curves.

Sonia L. Rueda, Juana Sendra, J. Rafael Sendra

J. Symb. Comput., 2013

The Relation Between Offset and Conchoid Constructions

Martin Peternell, Lukas Gotthart, J. Rafael Sendra, Juana Sendra

CoRR, 2013

First steps towards radical parametrization of algebraic surfaces.

J. Rafael Sendra, David Sevilla

Comput. Aided Geom. Des., 2013

2012

Total Degree Formula for the Generic Offset to a Parametric Surface.

Fernando San Segundo, J. Rafael Sendra

Int. J. Algebra Comput., 2012

2011

Algorithmic detection of hypercircles.

Tomás Recio, J. Rafael Sendra, Luis Felipe Tabera, Carlos Villarino

Math. Comput. Simul., 2011

Radical parametrizations of algebraic curves by adjoint curves.

J. Rafael Sendra, David Sevilla

J. Symb. Comput., 2011

Corrigendum to "Linear complete differential resultants and the implicitization of linear DPPEs" [J. Symbolic Comput. 45(3) March (2010) 324-341].

Sonia L. Rueda, J. Rafael Sendra

J. Symb. Comput., 2011

Accurate Depth Dependent Lens Distortion Models: An Application to Planar View Scenarios.

Luis Álvarez, Luis Gómez, J. Rafael Sendra

J. Math. Imaging Vis., 2011

Algebraic Lens Distortion Model Estimation.

Luis Álvarez, Luis Gómez, J. Rafael Sendra

Image Process. Line, 2011

Proper real reparametrization of rational ruled surfaces.

Carlos Andradas, Tomás Recio, Luis Felipe Tabera, J. Rafael Sendra, Carlos Villarino

Comput. Aided Geom. Des., 2011

2010

Generalizing circles over algebraic extensions.

Tomás Recio, J. Rafael Sendra, Luis Felipe Tabera, Carlos Villarino

Math. Comput., 2010

Linear complete differential resultants and the implicitization of linear DPPEs.

Sonia L. Rueda, J. Rafael Sendra

J. Symb. Comput., 2010

A First Approach towards Normal Parametrizations of Algebraic Surfaces.

Sonia Pérez-Díaz, J. Rafael Sendra, Carlos Villarino

Int. J. Algebra Comput., 2010

Approximate parametrization of plane algebraic curves by linear systems of curves.

Sonia Pérez-Díaz, J. Rafael Sendra, Sonia L. Rueda, Juana Sendra

Comput. Aided Geom. Des., 2010

Rational parametrization of conchoids to algebraic curves.

Juana Sendra, J. Rafael Sendra

Appl. Algebra Eng. Commun. Comput., 2010

2009

Partial degree formulae for plane offset curves.

Fernando San Segundo, J. Rafael Sendra

J. Symb. Comput., 2009

On the simplification of the coefficients of a parametrization.

Carlos Andradas, Tomás Recio, J. Rafael Sendra, Luis Felipe Tabera

J. Symb. Comput., 2009

An Algebraic Approach to Lens Distortion by Line Rectification.

Luis Álvarez, Luis Gómez, J. Rafael Sendra

J. Math. Imaging Vis., 2009

Parametrization of ε-rational curves: extended abstract.

Sonia Pérez-Díaz, J. Rafael Sendra, Sonia L. Rueda, Juana Sendra

Proceedings of the Symbolic Numeric Computation, 2009

2008

A univariate resultant-based implicitization algorithm for surfaces.

Sonia Pérez-Díaz, J. Rafael Sendra

J. Symb. Comput., 2008

An algebraic analysis of conchoids to algebraic curves.

J. Rafael Sendra, Juana Sendra

Appl. Algebra Eng. Commun. Comput., 2008

Offsetting Revolution Surfaces.

Fernando San Segundo, J. Rafael Sendra

Proceedings of the Automated Deduction in Geometry - 7th International Workshop, 2008

2007

A delineability-based method for computing critical sets of algebraic surfaces.

Juan Gerardo Alcázar, Josef Schicho, J. Rafael Sendra

J. Symb. Comput., 2007

Local shape of offsets to algebraic curves.

Juan Gerardo Alcázar, J. Rafael Sendra

J. Symb. Comput., 2007

Special issue on algebraic curves.

Josef Schicho, J. Rafael Sendra

Appl. Algebra Eng. Commun. Comput., 2007

Finite piecewise polynomial parametrization of plane rational algebraic curves.

Sonia Pérez-Díaz, J. Rafael Sendra, Carlos Villarino

Appl. Algebra Eng. Commun. Comput., 2007

2006

Distance bounds of <i>epsilon</i>-points on hypersurfaces.

Sonia Pérez-Díaz, Juana Sendra, J. Rafael Sendra

Theor. Comput. Sci., 2006

2005

Computation of the topology of real algebraic space curves.

Juan Gerardo Alcázar, J. Rafael Sendra

J. Symb. Comput., 2005

Offsets from the perspective of computational algebraic geometry.

Fernando San Segundo, J. Rafael Sendra, Juana Sendra

SIGSAM Bull., 2005

Parametrization of approximate algebraic surfaces by lines .

Sonia Pérez-Díaz, Juana Sendra, J. Rafael Sendra

Comput. Aided Geom. Des., 2005

Partial degree formulae for rational algebraic surfaces.

Sonia Pérez-Díaz, J. Rafael Sendra

Proceedings of the Symbolic and Algebraic Computation, 2005

The Challenge of Approximately Parameterizing Algebraic Curves and Surfaces.

Sonia Pérez-Díaz, Juana Sendra, J. Rafael Sendra

Proceedings of the Algorithmic Algebra and Logic. Proceedings of the A3L 2005, 2005

2004

Parametrization of approximate algebraic curves by lines.

Sonia Pérez-Díaz, Juana Sendra, J. Rafael Sendra

Theor. Comput. Sci., 2004

From hypercircles to units.

Tomás Recio, J. Rafael Sendra, Carlos Villarino

Proceedings of the Symbolic and Algebraic Computation, 2004

2003

Computing all parametric solutions for blending parametric surfaces.

Sonia Pérez-Díaz, J. Rafael Sendra

J. Symb. Comput., 2003

2002

Normal Parametrizations of Algebraic Plane Curves.

J. Rafael Sendra

J. Symb. Comput., 2002

Properness and Inversion of Rational Parametrizations of Surfaces.

Sonia Pérez-Díaz, Josef Schicho, J. Rafael Sendra

Appl. Algebra Eng. Commun. Comput., 2002

2001

Special Issue on Effective Methods in Rings of Differential Operators - Foreword by the Guest Editors.

F. J. Castro-Jiménez, J. Rafael Sendra

J. Symb. Comput., 2001

Optimal Reparametrization of Polynomial Algebraic Curves.

J. Rafael Sendra, Carlos Villarino

Int. J. Comput. Geom. Appl., 2001

Tracing index of rational curve parametrizations.

J. Rafael Sendra, Franz Winkler

Comput. Aided Geom. Des., 2001

Computation of the degree of rational maps between curves.

J. Rafael Sendra, Franz Winkler

Proceedings of the 2001 International Symposium on Symbolic and Algebraic Computation, 2001

Parametric G1-Blending of Several Surfaces.

Sonia Pérez-Díaz, Juan Rafael Sendra

Proceedings of the Computer Algebra in Scientific Computing, 2001

2000

Rationality Analysis and Direct Parametrization of Generalized Offsets to Quadrics.

J. Rafael Sendra, Juana Sendra

Appl. Algebra Eng. Commun. Comput., 2000

1999

Algorithms for Rational Real Algebraic Curves.

J. Rafael Sendra, Franz Winkler

Fundam. Informaticae, 1999

Optimal reparameterization of polynomial algebraic curves.

J. Rafael Sendra, Carlos Villarino

SIGSAM Bull., 1999

Base Field Restriction Techniques for Parametric Curves.

Carlos Andradas, Tomás Recio, J. Rafael Sendra

Proceedings of the 1999 International Symposium on Symbolic and Algebraic Computation, 1999

1998

Real Parametrization of Algebraic Curves.

J. Rafael Sendra, Franz Winkler

Proceedings of the Artificial Intelligence and Symbolic Computation, 1998

1997

Parametrization of Algebraic Curves over Optimal Field Extensions.

J. Rafael Sendra, Franz Winkler

J. Symb. Comput., 1997

Real Reparametrizations of Real Curves.

Tomás Recio, J. Rafael Sendra

J. Symb. Comput., 1997

Parametric Generalized Offsets to Hypersurfaces.

Enrique Arrondo, Juana Sendra, J. Rafael Sendra

J. Symb. Comput., 1997

A Relatively Optimal Rational Space Curve Reparametrization Algorithm Through Canonical Divisors.

Carlos Andradas, Tomás Recio, J. Rafael Sendra

Proceedings of the 1997 International Symposium on Symbolic and Algebraic Computation, 1997

1993

Efficient Algorithms for Hankel Matrices over Z[x₁, ..., x_r].

J. Rafael Sendra, Juan Llovet

Proceedings of the 1993 International Symposium on Symbolic and Algebraic Computation, 1993

1992

An Extended Polynomial GCD Algorithm Using Hankel Matrices.

J. Rafael Sendra, Juan Llovet

J. Symb. Comput., 1992

Rank of a Hankel Matrix Over Z[x₁, ..., x_r].

J. Rafael Sendra, Juan Llovet

Appl. Algebra Eng. Commun. Comput., 1992

1991

Symbolic Parametrization of Curves.

J. Rafael Sendra, Franz Winkler

J. Symb. Comput., 1991

1990

Hankel matrices and computer algebra.

J. Rafael Sendra

SIGSAM Bull., 1990

A Modular Approach to the Computation of the Number of Real Roots.

Juan Llovet, J. Rafael Sendra

Proceedings of the International Symposium on Symbolic and Algebraic Computation, 1990

1987

Hankel Matrices and Polynomials.

Juan Llovet, J. Rafael Sendra

Proceedings of the Applied Algebra, 1987