Publications


Found 70 publications.

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Optimal Control Applied to an Irrigation Planning Problem (2016)
S. O. Lopes, R. M. S. Pereira, M. R. de Pinho, Fontes, Fernando A. C. C. and A. M. Gonçalves
Mathematical Problems in Engineering, Volume 2016 (2016), Article ID 5076879, 10 pages, http://dx.doi.org/10.1155/2016/5076879
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Optimization-based control of constrained nonlinear systems with continuous-time models: Adaptive ti (2016)
L. T. Paiva and Fontes, Fernando A. C. C.
AIP Conference Proceedings 1776, 2016, pp. 090009-1-090009-5, DOI: 10.1063/1.4965373
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Adaptive Time-Mesh Refinement in Optimal Control Problems with State Constraints (2015)
Paiva, L. T. and Fontes, Fernando A. C. C.
te and Continuous Dynamical Systems, 35 (9), September 2015, pp. 4553-4572 
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Normality and Nondegeneracy for Optimal Control Problems with State Constraints (2015)
H. Frankowska and Fontes, Fernando A. C. C.
Journal of Optimization Theory and Applications, 2015, Vol. 166, pp. 115-136 , DOI: 10.1007/s10957-015-0704-1 
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Optimal control for an irrigation planning problem: Characterisation of solution and validation of the numerical results (2015)
S. O. Lopes, R. M. S. Pereira, M. R. de Pinho, Fontes, Fernando A. C. C. and C. Ribeiro
Lecture Notes in Electrical Engineering, 11th Portuguese Conference on Automatic Control, CONTROLO 2014; Porto; Portugal, Volume 321 LNEE, 2015, Pages 157-167, 2015
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The hop-constrained minimum cost flow spanning tree problem with nonlinear costs: an ant colony optimization approach (2015)
M. S. R. Monteiro, Fontes, Fernando A. C. C. and D. B. M. M. Fontes
Optimization Letters, 2015 Vol. 9, Issue 3, pp. 451-464 
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A Hybrid Biased Random Key Genetic Algorithm Approach to the Unit Commitment Problem (2014)
L. A. C. Roque, Fontes, Fernando A. C. C. and D. B. M. M. Fontes
Journal of Combinatorial Optimization, Springer (online from February 2014, DOI: 10.1007/s10878-014-9710-8), 2014.
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Hop-constrained Minimum Spanning Tree Problems in Nonlinear Cost Network Flows: an Ant Colony Optimization Approach (2014)
D. B. M. M. Fontes, Fontes, Fernando A. C. C. and M. S. R. Monteiro
Optimization Letters Published Online on June 2014, DOI:10.1007/s11590-014-0762-6). http://link.springer.com/article/10.1007/s11590-014-0762-6
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Optimal Control for an Irrigation Planning Problem: characterization of solution and validation of the numerical results (2014)
S. O. Lopes, R. Pereira, M. R. de Pinho, Fontes, Fernando A. C. C. and C. Ribeiro
CONTROLO'2014 - Proc. of the 11th Port. Conf. on Autom. Control, Lecture Notes in Electrical Engineering 321, pp. 157--167; DOI: 10.1007/978-3-319-10380-8_16.
------------ National Journals & Conferences ------------

A predictive control-based algorithm for path following for autonomous aerial vehicles (2013)
C. Stoica, Fontes, Fernando A. C. C., I. Prodan, S. I. Niculescu and S. Olaru
Procs of IEEE Multi-Conf on Systems and Control, 2013.
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An Improved Biased Random Key Genetic Algorithm Approach to the Unit Commitment Problem (2013)
D. B. M. M. Fontes, Fontes, Fernando A. C. C. and L. A. C. Roque
(submitted 2013)
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An Integral-type Constraint Qualification to Guarantee Nondegeneracy of the Maximum Principle for Optimal Control Problems with State Constraints (2013)
Fontes, Fernando A. C. C., M. R. de Pinho and S. O. Lopes
Systems & Control Letters, Elsevier , Vol.62, 2013, pp.686-692.
------------ International Journals ------------

An optimal control approach to the irrigation planning problem (2013)
S. O. Lopes, R. Pereira, M. R. de Pinho, G. Machado, Fontes, Fernando A. C. C. and A. M. Gonçalves
Conferência Brazileira de Dinâmica, Controle e Aplicações (DINCON), 2013.
------------ National Journals & Conferences ------------

An Optimal Control Framework for Resources Management in Agriculture (2013)
E. Costa, Fontes, Fernando A. C. C., Lobo Pereira, F., Ferreira, Maria Margarida Amorim, M. R. de Pinho and V. Oliveira
The Cape Verde International Days on Mathematics 2013, Praia, Cape Verde, Apr 22 - 25, 2013.
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An Optimal Control Framework for Resources Management in Agriculture (2013)
Silva, Geraldo Nunes, M. R. de Pinho, Lobo Pereira, F., Fontes, Fernando A. C. C., Ferreira, Maria Margarida Amorim, E. W. Stiegelmeier and V. A. de Oliveira
J. Conference Papers in Mathematics, Hindawi Publishing Corporation, Vol 2013 (2013), Article ID 769598, 15 pages.
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Concave Minimum Cost Network Flow Problems Solved with a Colony of Ants (2013)
D. B. M. M. Fontes, Fontes, Fernando A. C. C. and M. S. R. Monteiro
Journal of Heuristics, pp.-, 2013 (In press. Available on-line from November 2012http://link.springer.com/article/10.1007/s10732-012-9214-6).
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Irrigation planning: An optimal control approach (2013)
A. M. Gonçalves, Fontes, Fernando A. C. C., G. Machado, R. Pereira and S. O. Lopes
AIP Conf Procs 1558 (ICNAAM 2013), pp. 622–625.
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Irrigation planning: Replanning and numerical solution (2013)
A. M. Gonçalves, Fontes, Fernando A. C. C., G. Machado, R. Pereira and S. O. Lopes
In AIP Conf Procs 1558 (ICNAAM 2013), pages 626–629, 2013.
------------ International Conferences ------------

Mesh refinement strategy for optimal control problems (2013)
Fontes, Fernando A. C. C. and Paiva, L. T.
AIP Conf Procs 1558 (ICNAAM 2013), pages 590–593, 2013.
------------ International Conferences ------------

Normal forms of necessary conditions for dynamic optimization problems with pathwise inequality constraints (2013)
Fontes, Fernando A. C. C. and S. O. Lopes
Journal of Mathematical Analysis and Applications, Vol. 399, no 1, pp.27-37, http://www.sciencedirect.com/science/article/pii/S0022247X12007901.
------------ International Journals ------------

Optimal Control for Resources Management in Agriculture (2013)
V. Oliveira, Silva, Geraldo Nunes, M. R. de Pinho, Lobo Pereira, F., Fontes, Fernando A. C. C., Ferreira, Maria Margarida Amorim and E. Costa
Conferência Brazileira de Dinâmica, Controle e Aplicações (DINCON), 2013.
------------ National Journals & Conferences ------------

Optimal control of the irrigation problem: characterization of the solution (2013)
Fontes, Fernando A. C. C., G. Machado, M. R. de Pinho, R. Pereira and S. O. Lopes
In Procedia Technology (CECT 2013), submitted.
------------ International Journals ------------

Recent results on approximate optimization methods for the unit commitment problem (2013)
D. B. M. M. Fontes, Fontes, Fernando A. C. C. and L. A. C. Roque
Procs 7th International Conf on Energy Planning, Energy Saving, Environmental Education, 2013.
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Time-mesh refinement in optimal control problems for non-holonomic vehicles (2013)
Fontes, Fernando A. C. C. and Paiva, L. T.
In Procedia Technology (CECT 2013), submitted.
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An Optimal Control Approach to the Unit Commitment Problem (2012)
D. B. M. M. Fontes, Fontes, Fernando A. C. C. and L. A. C. Roque
CDC 2012, Maui, Hawaii, Dec 2012.
------------ International Conferences ------------

BRKGA Adapted To Multiobjective Unit Commitment (2012)
D. B. M. M. Fontes, Fontes, Fernando A. C. C. and L. A. C. Roque
"ICORES 2012, Algarve, Feb, 2012.M. Teixeira, T. Mendonça, P. Rocha. ""Tracking the NMB level via a switching system mass control strategy"", in 8th IFAC Symposium on Biological and Medical Systems, pp, 2012."
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Model Predictive Control of Impulsive Dynamical Systems (2012)
Fontes, Fernando A. C. C. and Lobo Pereira, F.
NMPC'12 - IFAC Conf on Nonlinear Model Predictive Control, Noordwijkerhout, the Netherlands, Aug 23-27, 2012.
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Obstacle avoidance in optimal switching of a formation geometry (2012)
Fontes, Fernando A. C. C., D. B. M. M. Fontes and A. Caldeira
CONTROLO 2012, Funchal, Jul 16-18, 2012.
------------ National Journals & Conferences ------------

A Biased Random Key Genetic Algorithm approach for Unit Commitment Problem (2011)
D. B. M. M. Fontes, Fontes, Fernando A. C. C. and L. A. C. Roque
International Symposium on Experimental Algorithms, Crete, Greece, Apr 2011.
------------ International Conferences ------------

A Generic Framework for Multi-Robot Formation Control (2011)
A. P. Moreira, A. S. Conceição, Fontes, Fernando A. C. C., H. Alves and T. Nascimento
RoboCup International Symposium 2011. ?stanbul, Turkey, Jul 5-11, 2011.
------------ International Conferences ------------

An Ant Colony Optimization Algorithm to Solve the Minimum Cost Network Flow Problem with Concave Cost Functions (2011)
D. B. M. M. Fontes, Fontes, Fernando A. C. C. and M. S. R. Monteiro
GECCO'11, Dublin, Ireland, Jul 12-16, 2011.
------------ International Conferences ------------

An Ant Colony Optimization Approach for Minimum Spanning Tree Problems in Nonlinear Costs Network Flows (2011)
D. B. M. M. Fontes, Fontes, Fernando A. C. C. and M. S. R. Monteiro
International Conf on Operations Research - OR2011, Zurich, Switzerland, Aug 30 - Sept 2, 2011.
------------ International Conferences ------------

Changing the geometry of agent formations in Minimal time: collision avoidance and variable agent velocities (2011)
Fontes, Fernando A. C. C., D. B. M. M. Fontes and A. Caldeira
3rd Porto Meeting on Mathematics for Industry, Porto, 28-30 April 2011.
------------ National Journals & Conferences ------------

Irrigation Planning in the context of Climate Change (2011)
Fontes, Fernando A. C. C., G. Machado, R. Pereira and S. O. Lopes
International Conf on Mathematical Models for Engineering Science (MMES '11), Tenerife, Dec 10-12, 2011.
------------ International Conferences ------------

Leader Following Formation Control for Omnidirectional Mobile Robots: The Target Chasing Problem (2011)
A. P. Moreira, A. S. Conceição, Fontes, Fernando A. C. C. and T. Nascimento
ICINCO 2011-8th International Conf on Informatics in Control, Automation and Robotics, Noordwijkerhout, Netherlands, Jul 28 - 31, 2011.
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On Constraint Qualifications for Nondegenerate Necessary Conditions of Optimality Applied to Optimal Control Problems (2011)
Fontes, Fernando A. C. C., M. R. de Pinho and S. O. Lopes
Discrete and Continuous Dynamical Systems series A, AIMS, vol. 29, n. 2, 2011.
------------ International Journals ------------

On the Relation Between Inward Pointing Velocity Condition (2011)
Fontes, Fernando A. C. C., M. R. de Pinho and S. O. Lopes
ICNAAM, Halkidiki, Greece, Sept 21, 2011.
------------ International Conferences ------------

Optimal Switching of Agent Formations with Collision Avoidance and Allowing Variable Path Curvatures (2011)
A. Caldeira, Fontes, Fernando A. C. C. and D. B. M. M. Fontes
Optimization 2011, Lisbon (Caparica), Portugal July 24-27, 2011.
------------ National Journals & Conferences ------------

Um algoritmo das formigas para a resolução de problemas de transportes com custos fixos (2011)
M. S. R. Monteiro, Fontes, Fernando A. C. C. and D. B. M. M. Fontes
15º Congresso da Associação Portuguesa de Investigação Operacional - IO2011, Coimbra, 18 a 20 de Abril de 2011.
------------ National Journals & Conferences ------------

A Biased Random Key Genetic Algorithm Approach for the Unit Commitment Problem (2010)
D. B. M. M. Fontes, Fontes, Fernando A. C. C. and L. A. C. Roque
ICEC 2010- International Conf on Evolutionary Computation, Valencia, 24-26 Oct 2010.
------------ International Conferences ------------

A Hybrid Genetic Algorithm for Constrained Combinatorial Problems: An Application to Promotion Planning Problems (2010)
D. B. M. M. Fontes, Fontes, Fernando A. C. C. and P. A. Pereira
International Conf on Operational Research - OR 2010, Munique, Alemanha,Sept 2010.
------------ International Conferences ------------

Model Predictive Control for Path-following of Nonholonomic Systems (2010)
A. Caldeira and Fontes, Fernando A. C. C.
Procs 10th Portuguese Conf on Automatic Control - CONTROLO 2010, pp. 720--725, Coimbra, Sept 2010 .
------------ National Journals & Conferences ------------

On the Degeneracy of Optimality Conditions for Control Problems with Set-Inclusion Constraints (2010)
Fontes, Fernando A. C. C. and S. O. Lopes
Procs 10th Portuguese Conf on Automatic Control – CONTROLO, 2010, pp. 374--379, Coimbra, Sept 2010.
------------ National Journals & Conferences ------------

A Genetic Algorithm Approach for the TV Self-Promotion Assignment Problem (2009)
D. B. M. M. Fontes and Fontes, Fernando A. C. C.
International Conf on Numerical Analysis and Applied Mathematics, 2009, AIP Conf Procs, Vol. 1168, 2009, pp. 1378-1381.
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An Overview of Nondegenerate Necessary Conditions of Optimality for Optimal Control Problems with Higher Index State Constraints (2009)
Fontes, Fernando A. C. C. and S. O. Lopes
International Journal of Mathematics and Statistics, vol. 5, Nº A09, 2009, pp. 83-91.
------------ International Journals ------------

Necessary Conditions of Optimality for Calculus of Variations Problems with Inequality Constraints (2009)
Fontes, Fernando A. C. C. and S. O. Lopes
AIP Conf Procs, Vol. 1168, 2009,pp. 1382-1384.
------------ International Conferences ------------

On Normal Forms of Necessary Conditions of Optimality for Dynamic Optimization Problems with Constraints (2009)
Fontes, Fernando A. C. C. and S. O. Lopes
Joint 48th IEEE Conf on Decision and Control and 28th Chinese Control Conf, Shanghai, P.R. China, 2009.
------------ International Conferences ------------

On Possibly Nonregular Mixed Constrained Optimal Control Problems (2009)
Fontes, Fernando A. C. C., Ferreira, Maria Margarida Amorim and M. R. de Pinho
International J.l of Mathematics and Statistics, Vol. 5, nº A09, 2009, pp.42-51.
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An Overview of Nondegenerate Necessary Conditions of Optimality for Optimal Control Problems with Higher Index State Constraints (2008)
Fontes, Fernando A. C. C. and S. O. Lopes
Procs of Controlo 2008, 6 pages, Vila Real, Jul 21–23, 2008.
------------ International Conferences ------------

On stronger forms of first-order necessary conditions of optimality for state-constrained control problems (2008)
Fontes, Fernando A. C. C. and S. O. Lopes
International Journal of Pure and Applied Mathematics, Vol. 49, 2008, Nº. 4, pp. 459-466.
------------ International Journals ------------

Optimal Formation Switching (2008)
D. B. M. M. Fontes and Fontes, Fernando A. C. C.
Procs 4th WSEAS Int. Conf. on Dynamical Systems and Control, Corfu Island, Greece, Oct 26-28, 7 pages, 2008.
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Optimal Reorganization of Agent Formations (2008)
D. B. M. M. Fontes and Fontes, Fernando A. C. C.
WSEAS Transactions on Systems and Control, Vol. 3, Nº 9, 2008, pp. 789-798.
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Pesquisa tabu para problemas de transportes com custos fixos (2008)
D. B. M. M. Fontes, Fontes, Fernando A. C. C., M. S. R. Monteiro and P. M. Pardalos
IO2008 - 13º Congresso da APDIO, Vila Real, March 16-19, 2008.
------------ National Journals & Conferences ------------

Real Options Using Markov Chains: An Application to Production Capacity Decisions (2008)
D. B. M. M. Fontes, Fontes, Fernando A. C. C., L. Camões and P. M. Pardalos
Journal of Computational Optimization in Economics and Finance, Vol 1, Nº1, 2008, pp. 1-16.
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A Decision Support System for Planning Promotion Time-slots (2007)
D. B. M. M. Fontes, Fontes, Fernando A. C. C. and P. A. Pereira
OR2007 Operations Research 2007, Saarbrücken, Germany, 5th -7th Sept 2007.
------------ International Conferences ------------

A Genetic Algorithm Approach to the Allocation of TV Self-Promotion Space (2007)
D. B. M. M. Fontes, Fontes, Fernando A. C. C. and P. A. Pereira
EURO 2007, 22nd European Conf on Operational Research, Prague, Check Republic, 8th -11th Jul 2007.
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A Special Class of Mixed Constrained Optimal Control Problems (2007)
Ferreira, Maria Margarida Amorim, Fontes, Fernando A. C. C. and M. R. de Pinho
ECC'07, Kos, Greece, 2nd -5th Jul 2007.
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An Evolutionary Algorithm Approach for Planning Promotion Time-Slots (2007)
Fontes, Fernando A. C. C. and Lobo Pereira, F.
Optimization 2007, Porto, Portugal, 22-25 Jul 2007.
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Model Predictive Control of Underactuated Mechanical Systems (2007)
A. Caldeira and Fontes, Fernando A. C. C.
RoboMat 2007, Workshop on Robotics and Mathematics, Coimbra, 17th -19th Sept 2007.
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Necessary Conditions of Optimality for Control Problems with State Constraints: Avoiding degeneracy with an integral-type constraint qualification (2007)
Fontes, Fernando A. C. C. and M. R. de Pinho
Optimization 2007 – Porto, Portugal, 22nd -25th Jul 2007.
------------ International Conferences ------------

Nondegenerate Necessary Conditions for Nonlinear Optimal Control Problems with Higher-Index State Constraints (2007)
Fontes, Fernando A. C. C. and S. O. Lopes
ICIAM 2007, Zurich, 16th -20th Jun 2007.
------------ International Conferences ------------

Nondegenerate necessary conditions for nonlinear optimal control problems with higher-index state constraints (2007)
Fontes, Fernando A. C. C. and S. O. Lopes
Proceedings in Applied Mathematics and Mechanics, Wiley Interscience, Vol. 7, Nº 1, 2007, pp: 1061-701-1061-702.
------------ International Journals ------------

Nondegenerate Necessary Conditions for Optimal Control Problems with State Constraints: Integral-Type Constraint Qualification (2007)
Fontes, Fernando A. C. C. and S. O. Lopes
ECC2007, Kos, Greece, 2nd -5th Jul 2007.
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On Necessary Conditions for State Constrained Problems (2007)
Ferreira, Maria Margarida Amorim, Fontes, Fernando A. C. C. and M. R. de Pinho
ICIAM 2007-, Zurich, 16th -20th Jun 2007.
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On necessary conditions for state constrained problems (2007)
Fontes, Fernando A. C. C., Ferreira, Maria Margarida Amorim and M. R. de Pinho
Proceedings in Applied Mathematics and Mechanics, Wiley Interscience, Vol.7, Nº 1, 2007, pp. 559-575.
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On the degeneracy phenomenon in optimization problems with inequality constraints (2007)
Fontes, Fernando A. C. C. and S. O. Lopes
ORP3 2007- Operational Research Peripatetic Post-Graduate Programme, Guimarães, Portugal, 12th -15th Sept 2007.
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Optimal Control Problems with Nonregular Mixed Constraints (2007)
Ferreira, Maria Margarida Amorim, Fontes, Fernando A. C. C. and M. R. de Pinho
SSSC07 3rd IFAC Symposium on System, Structure and Control, Foz do Iguaçu, Brazil, 17th- 19th Oct 2007.
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Optimal investment timing using jump price processes, A real options approach (2007)
Fontes, Fernando A. C. C.
WMCTF 2007- Workshop on Mathematical Control Theory and Finance, Lisbon, Portugal, 10th -14th Apr 2007.
------------ International Conferences ------------

Optimal timing for market entry (2007)
D. B. M. M. Fontes and Fontes, Fernando A. C. C.
ICORD-VI - International Conf on Operational Research for Development, Fortaleza, Brazil, 29th -31st Aug, 2007.
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Valuing the Pumped Storage Option in Electric Power Systems (2007)
D. B. M. M. Fontes, Fontes, Fernando A. C. C. and L. A. C. Roque
Optimization 2007 – Porto, Portugal, 22nd -25th Jul 2007.89.
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