Articles in Journals (since 2001)

• J. Júdice, M. Fukushima, A. Iusem, J. M. Martinez and V. Sessa, An alternating direction method of multipliers for the eigenvalue complementarity problem, to appear in Optimization Methods and Software. [Abstract | PDF File]

• Alfredo N. Iusem, J. Júdice, Valentina Sessa and Paula Sarabando, Splitting methods for the Eigenvalue Complementarity Problem, Optimization Methods and Software 34(2019) 1184-1212. [Abstract | PDF File]

• Yi-Shuai Niu, J. Judice, Hoai An Le Thi and Dinh Tao Pham, Improved DC Programming Approaches for Solving the Quadratic Eigenvalue Complementarity Problem, Applied Mathematics and Computation 353 (2019) 95-113 [Abstract | PDF File].

• L-H Zhang, C. Shen, W. H. Yang and J. Júdice, A Lanczos method for large-scale extreme Lorentz Eigenvalue Problems, SIAM J. Matrix Anal. Appl. 39(2018) 611 - 631. [Abstract | PDF File]

• A. N. Iusem, J. Júdice, V. Sessa, H. D. Sherali, The Second-Order Cone Quadratic Eigenvalue Complementarity Problem, Pacific Journal of Optimization 13 (2017) 475 - 500. [Abstract | PDF File] 

• R. Fernandes, J. Júdice, V. Trevisan, Complementary eigenvalues of graphs, Linear Algebra and its Applications 527 (2017) 216 - 231. [Abstract | PDF File]

• C. Brás,  A. Fischer, J. Júdice, K. Schonefeld, S. Seifert, A block active set algorithm with spectral choice line search for the symmetric eigenvalue complementarity problem, Applied Mathematics and Computation 294 (2017) 36 - 48. [Abstract | PDF File]

• A. N. Iusem, J. Júdice, V. Sessa, H. D. Sherali, On the Numerical Solution of the Quadratic Eigenvalue Complementarity Problem, Numerical Algorithms 72 (2016) 721 - 747. [Abstract | PDF File]

• C. Brás, A. Iusem, J. Júdice, On the Quadratic Eigenvalue Complementarity Problem, Journal of Global Optimization 66 (2016) 153 - 171. [Abstract | PDF File]

• R. Andreani, J. J. Júdice, J. M. Martínez, T. Martini, Feasibility problems with complementarity constraints, European Journal of Operational Research 249 (2016) 41 - 54 . [Abstract | PDF File]

• C. Brás, G. Eichfelder, J. Júdice, Copositivity tests based on the Linear Complementarity Problem, Computational Optimization and Applications 63 (2016) 461 - 493 . [Abstract | PDF File]

• L. Fernandes, M. Fukushima, J. Júdice, H. Sherali, The Second-Order Eigenvalue Complementarity Problem, Optimization Methods and Software 31 (2016) 24 - 52. [Abstract | PDF File]

• C. Brás, M. Fukushima, A. Iusem, J. Júdice, On the Quadratic Eigenvalue Complementarity Problem over a General Convex Cone, Applied Mathematics and Computation 271 (2015) 594 - 608. [Abstract | PDF File]

• Joaquim J. Júdice, Optimization with Linear Complementarity Constraints, Pesquisa Operacional 34 (2014) 559 - 584. [Abstract | PDF File]

• P. Amaral, I. M. Bomze and J. Júdice, Copositivity and constrained fractional quadratic programs, Mathematical Programming, Series A, 146 (2014) 325 - 350. [Abstract | PDF File]

• Luís M. Fernandes, Joaquim J. Júdice, Hanif D. Sherali, Maria A. Forjaz, On an enumerative algorithm for solving eigenvalue complementarity problems, Computational Optimization and Applications 59 (2014) 113 - 134. [Abstract | PDF File]

• Luís M. Fernandes, Joaquim J. Júdice, Hanif D. Sherali, Masao Fukushima,  On the computation of all eigenvalues for the eigenvalue complementarity problem, Journal of Global Optimization 59 (2014) 307 - 326. [Abstract | PDF File]

• Carmo P. Brás, Joaquim J. Júdice and Hanif D. Sherali, On the solution of the inverse eigenvalue complementarity problem, Journal of Optimization Theory and Applications 162 (2014) 88 - 106. [Abstract | PDF File]

• Luís M. Fernandes, Joaquim J. Júdice, Masao Fukushima and Alfredo Iusem, On the symmetric quadratic eigenvalue problem,  Optimization Methods and Software 29 (2014) 751 - 770. [Abstract | PDF File]

• Y. S. Niu, T. Pham Dinh, H. A. Le Thi and J. J. Júdice, Efficient DC programming approaches for the asymmetric eigenvalue complementarity problem, Optimization Methods and Software 28 (2013) 812-829. [Abstract | PDF File]

• L. J. Alvarez-Vasquez, J. J. Júdice, A. Martínez, C. Rodríguez, M. E. Vásquez-Méndez and M. A. Vilar, On the optimal design of river fishways, Optimization and Engineering 14 (2013) 193-211. [Abstract | PDF File]

• C. P. Brás, W. W. Hager and J. J. Júdice, An investigation of feasible descent algorithms for estimating the condition number of a matrix, TOP - Journal of the Spanish Society of Statistics and Operations Research 20 (2012) 791-809. [Abstract | PDF File]

• C. P. Brás, M. Fukushima, J. J. Júdice and S. Rosa, Variational inequality formulation of the asymmetric eigenvalue complementarity problem and its solution by means of gap functions, Pacific Journal of Optimization 8 (2012) 197-215. [Abstract | PDF File] 

• J. J. Júdice, Algorithms for linear programming with linear complementarity constraints, TOP - Journal of the Spanish Society of Statistics and Operations Research 20(2012) 4-25. [Abstract | PDF File]

• M. J. Alves, S. Dempe and J. J. Júdice, Computing the Pareto frontier of a bi-objective bilevel linear problem using a multiobjective mixed-integer programming algorithm, Optimization 61(2012) 335-358. [Abstract | PDF File]

• H. A. Le Thi, M. Moeini, T. Pam Dinh and J. J. Júdice, A DC programming approach for solving the symmetric eigenvalue complementarity problem, Computational Optimization and Applications 51(2012) 1097-1117. [Abstract | PDF File]

• R. Andreani, J. J. Júdice, J. M. Martínez and J. Patrício, A projected-gradient interior-point algorithm for complementarity problems, Numerical Algorithms 57(2011) 457-487. [Abstract | PDF File]  

• M. J. Alves and J. J. Júdice, On the use of a tabu pivoting technique for solving the linear complementarity problem, Journal of Advanced Modeling and Optimization 13(2011) 111-140. [Abstract | PDF File]

• R. Andreani, J. Júdice, J. M. Martínez and J. Patrício, On the natural merit function for solving complementarity problems, Mathematical Programming 130(2011) 211-223. [Abstract | PDF File]

• L. M. Fernandes, J. J. Júdice, H. D. Sherali and A. P. Antunes, Siting and sizing of facilities under probabilistic demands, Journal of Optimization Theory and Applications 149(2011) 420-440. [Abstract | PDF File]

• P. Amaral, L. M. Fernandes, J. Júdice and H. Sherali, On optimal zero-preserving corrections for inconsistent linear systems, Journal of Global Optimization 45(2009) 645-666. [Abstract | PDF File]

• J. Júdice, H. Sherali, I. Ribeiro and S. Rosa, On the asymmetric eigenvalue complementarity problem, Optimization Methods and Software 24(2009) 549-568. [Abstract | PDF File] 

• L. Portugal, M. Resende, G. Veiga, J. Patrício and J. Júdice, FORTRAN subroutines for network flow optimization using an interior point algorithm,  Pesquisa Operacional 28(2008) 243-261. [Abstract | PDF File] 

• J. Júdice, V. Anunciada and C. P. Baptista, Cost minimization of a multiple section power cable supplying several remote telecom equipment, Optimization and Engineering 9(2008) 273-290. [Abstract | PDF File]

• J. Júdice, A. Silva-Afonso, C. P. Baptista and L. M. Fernandes, Economic design of water distribution systems in buildings, Engineering Optimization 40(2008) 749-768. [Abstract | PDF File]

• J. Júdice, M. Raydan, S. Rosa and S. Santos, On the solution of the symmetric eigenvalue complementarity problem by the spectral projected gradient algorithm, Numerical Algorithms 45(2008) 391-407. [Abstract | PDF File]                                                             

• P. Amaral, J. Júdice and H. Sherali, A Reformulation-Linearization-Convexification Algorithm for Optimal Correction of an Inconsistent System of Linear Constraints, Computers and Operations Research 35(2008) 1494-1509. [Abstract | PDF File]

• J. Júdice, H. Sherali, I. Ribeiro and A. Faustino, A complementarity active-set algorithm for mathematical programming problems with equilibrium constraints, Journal of Optimization Theory and Applications 134(2007) 467-481. [Abstract | PDF File]

• J. Júdice, H. Sherali and I. Ribeiro, The eigenvalue complementarity problem, Computational Optimization and Applications 37(2007) 139-156. [Abstract | PDF File]

• A. Faustino, J. Júdice, I. Ribeiro and A. Serra Neves, An integer programming model for truss topology optimization, Investigação Operacional 26(2006) 111-127. [Abstract | PDF File]

• J. Júdice, H. Sherali, I. Ribeiro and A. Faustino, A complementarity-based partitioning and disjunctive cut algorithm for mathematical programming problems with equilibrium constraints, Journal of Global Optimization 136(2006)89-114. [Abstract | PDF File]

• I. Figueiredo, J. Júdice and S. Rosa, A class of structural mathematical programs with equilibrium constraints: a smooth algorithm and applications to contact problems, Optimization and Engineering 6(2005) 203-234. [Abstract | PDF File]

• J. Júdice, P. Martins and J. Nunes, Workforce planning in a lotsize mail processing problem, Computers and Operations Research 32(2005) 3031-3058. [Abstract | PDF File]

• L. Costa, L. Fernandes, I. Figueiredo, J. Júdice, R. Leal e P. Oliveira, Multiple and single objective approaches to laminate optimization with genetic algorithms, Structural and Multidisciplinary Optimization 27(2004) 55-65. [Abstract | PDF File]

• C. Humes, J. Júdice and M. Queiroz, The symmetric eigenvalue complementarity problem, Mathematics of Computation, 73(2004)1849-1863. [Abstract | PDF File]

• A. Pinto da Costa, J. Martins, I. Figueiredo and J. Júdice, The directional instability problem in systems with frictional contacts, Computer Methods in Applied Mechanics and Engineering 193(2004) 357-384. [Abstract | PDF File]

• C. Humes, J. Júdice and M. Queiroz, On finding global optima for the hinge fitting problem, Computers and Operations Research 31 (2004) 101-122. [Abstract | PDF File]

• J. Júdice, C. O. Ribeiro and J. J. Santos, Análise comparativa dos modelos de selecção de carteiras de acções de Markowitz e Konno, Investigação Operacional 23 (2003) 211-224. [Abstract | PDF File]

• I. Figueiredo, J. Júdice and P. Oliveira, Complementarity and genetic algorithms for an optimization shell problem, Central European Journal of Operations Research 11(2003) 143-161. [Abstract | PDF File]

• J. Júdice, J. Patrício, L. Portugal, M. Resende and G. Veiga, A study of preconditioners for network interior point methods, Computational Optimization and Applications 24(2003) 5-35. [Abstract | PDF File]

• A. Faustino, J. Júdice and I. Ribeiro, On the solution of NP-hard linear complementarity problems, TOP- Sociedad de Estadística e Investigación Operativa 10(2002) 125-145. [Abstract | PDF File]

• L. Fernandes, J. Júdice and I. Figueiredo, On the solution of a finite element approximation of a linear obstacle plate problem, International Journal of Applied Mathematics and Computer Science 12(2002) 27-40. [Abstract | PDF File]

• L. Fernandes, A. Friedlander, M. C. Guedes and J. Júdice, Solution of a general linear complementarity problem using smooth optimization and its application to bilinear programming and LCP, Applied Mathematics and Optimization 43(2001) 1-19. [Abstract | PDF File]

Articles submitted to Journals

• A. A. Ebiefung, L. M. Fernandes, J. Júdice and M. Kostreva, A block principal pivoting algorithm for the vertical generalized linear complementarity problem, submitted. [Abstract]

Articles in Proceedings and Special Volumes (since 2001)

• Yi-Shuai Niu, Joaquim Júdice, Le Thi Hoai An, Pham Dinh Tao, Solving the Quadratic Eigenvalue Complementarity Problem by DC Programming, to appear in Proceedings of MCO2015: Modeling, Computation and Optimization in Information Systems and Management Sciences.  [Abstract | PDF File]

• L. Alvarez-Vázquez, A. Martinez, J. Júdice, C. Rodriguez, M. Vázquez-Méndez and M. Vilar, Fishway optimization revisited, Progress in Industrial Mathematics at ECMI 2010, edited by M. Gunther, A. Bartel, M. Brunk, S. Schoeps and M. Striebel, pp. 545-551, Springer, 2012. [Abstract  | PDF File]

• C. P. Brás and J. J. Júdice, Complementary approaches for the computation of the independent number of a graph, Proceedings of the 14th WSEAS International Conference on Applied Mathematics (MATH' 09), edited by C. A. Bulucea, V. Mladenov, E. Pop, M. Leba and N. Pastorakis, 2009, pp. 178-183. [Abstract | PDF File]

• A. Almeida, L. Fernandes, J. Júdice and J. Patrício, On the computation of a nonnegative matrix factorization and its application in telecommunications, Proceedings of the 7th Conference in Telecommunications, 2009, pp. 485-488. [Abstract | PDF File]

• J. Júdice, A. Faustino, I. Ribeiro and A. Serra Neves, On the use of bilevel programming for solving a structural optimization problem with discrete variables, Optimization with Multivalued Mappings: Theory, Applications and Algorithms, edited by S. Dempe and S. Kalashnikov, Springer, 2006, pp. 123-142. [Abstract | PDF File] 

• A. S. Afonso, F. Jegundo and J. Júdice, Economic design of water distribution systems in buildings, Proceedings of XXX IAHS World Congress on Housing, O. Ural, V. Abrantes e A. Tadeu (eds.), Universidade de Coimbra, 2002, pp. 51-58. [Abstract | PDF File]

• I. Figueiredo, J. Júdice and S. Rosa, Solution methods for structural optimization in contact rod problems, Proceedings of the Third International Symposium on Contact Mechanics, J. Martins and M. M. Marques (eds.), Kluwer, 2002, pp. 325-332. [Abstract | PDF File]

• A. Pinto da Costa, I. Figueiredo, J. Júdice and J. Martins, A complementarity eigenproblem in the stability analysis of finite dimensional elastic systems with frictional contact, Complementarity: Applications, Algorithms and Extensions, M. Ferris, O. Mangasarian and J. Pang (eds.), Kluwer, 2001, pp. 67-83. [Abstract | PDF File]

Books and Lecture Notes

• J. Júdice, J. Santos, Fundamentos de Optimização Não-Linear, Departamento de Matemática, Universidade de Coimbra, 2013. [PDF File]

• J. Júdice, Texto de Apoio às Aulas de Análise Matemática I, Departamento de Matemática, Universidade de Coimbra, 2010. [PDF File]

• J. Júdice, P. Martins, M. Pascoal, J. Santos, Optimização em Redes, Departamento de Matemática, Universidade de Coimbra, 2006. [PDF File]

• J. Júdice, P. Martins, M. Pascoal, J. Santos, Programação Linear, Departamento de Matemática, Universidade de Coimbra, 2006. [PDF File]

• J. Júdice, L. M. Fernandes, Equações Não Lineares e Optimização Unidimensional, Departamento de Matemática, Universidade de Coimbra, 2005. [PDF File]

• J. Júdice, Texto de Apoio às Aulas de Álgebra Linear Numérica, Departamento de Matemática, Universidade de Coimbra, 2003. [PDF File]

• C. Fernandes, J. Júdice and C. Salema (eds.), Mathematical Techniques and Problems in Telecommunications,  Centro Internacional de Matemática 24, 2003. [PDF File]

• J. Júdice and J. Patrício, Sistemas de Equações Lineares, Departamento de Matemática, Universidade de Coimbra, 1994. [PDF File]