Publications

1.     H. Ramírez, A. Rojas, and D. Jeison. Productivity optimization of microalgae cultivation in a batch photobioreactor process. Mathematical Methods in the Applied Sciences, 1-21, 2017. DOI: 10.1002/mma.4621

2.     P. Gajardo, J. Harmand, H. Ramírez C., A. Rapaport, V. Riquelme, A. Rousseau. Modeling and control of in-situ decontamination of large water resources. ESAIM: Proceedings and Surveys, Vol. 57, p. 70-85, 2017.

3.     F. Opazo, J. Outrata and H. Ramírez. Erratum: on the Aubin property of critical points to perturbed second-order cone programs. SIAM J. on Optimization, vol 27(3), 2143-2151, 2017. 

4.     F. Mairet, H. Ramírez C., and A. Rojas-Palma. Modeling and stability analysis of microalgal pond with nitrification. Applied Mathematical Modeling. Vol 51, pp. 448-468 (2017). DOI: 10.1016/j.apm.2017.07.008

5.     A. Rapaport, A. Rojas, J. R. de Dreuzy and H. Ramírez. Equivalence of Finite Dimensioanl Input-Output Models of Solute Transport and Diffusion in Goesciences. IEEE Transactions in Automatic Control. Vol 62(10), pp. 5470-5477 (2017). DOI: 10.1109/TAC.2017.2701150

6.     H. Ramírez and D. Sossa, On the Central Paths in Symmetric Cone Programming. J. Optim. Theory Appl. 172 , no. 2, pp. 649–668 (2017).

7.     H. Ramírez, A. Rapaport and V. Riquelme. Minimal time bioremediation of water resources with two patches. SIAM Journal Control and Optimization. Vol 53(4), pp. 1697-1718 (2016).

8.     Martinet V., Peña-Torres J., De Lara M., Ramírez C. H., Risk and Sustainability: Assessing Fishery Management Strategies. Environmental and Resource Economics. Volume 64, Issue 4, pp. 683–707 (2016).

9.     B. Mordukhovich, J. Outrata, H. Ramírez C. Graphical derivatives and stability analysis for parameterized equilibria with conic constraints. Set-Valued Var. Anal., No 1, Pages 76-101 (2015)

10.   B. Mordukhovich, J. Outrata, H. Ramírez C., Second-Order Variational Analysis in Conic Programming with Applications to Optimality and Stability. SIAM Journal on Optimization, Volume 25, 1, Pages 76-101 (2015).

11.   P. Gajardo, H. Ramírez C., J. Rodríguez, Tools for improving feeding strategies in a SBR with several species. Bioprocess and Biosystems Engineering. Volume 27, Pages 63-70 (2014).

12.   López, Julio; López, Rúben; Ramírez, Héctor A note on the paper "Linear complementarity problems over symmetric cones: characterization of Qb-transformations and existence results''. J. Optim. Theory Appl., Vol 163, no. 1, 351–354, 2014.

13.   Rodríguez, J. C.; Ramírez, H.; Gajardo, P.; Rapaport, A. Optimality of affine control system of several species in competition on a sequential batch reactor. Internat. J. Control 87 (2014), no. 9, 1877–1885.

14.   J. Amaya, H. Ramírez, P., Application of local search to crew scheduling. The Pyrenees International Workshop and Summer School on Statistics, Probability and Operations Research—SPO 2011, 23–32, Monogr. Mat. García Galdeano, 38, Prensas Univ. Zaragoza, Zaragoza, 2013.

15.   J. López, R. López, H. Ramírez C., Linear Complementarity Problems Over Symmetric Cones: Chatacterizations of Q_b-Transformations and Existence Results. Journal of Optimization Theory and Applications. Volume 159, Issue 3 (2013), Pages 741-768

16.   P. Bosch, J. López, H. Ramírez C., H. Robotham, Support vector machine under uncertainty: an application for hydroacoustic classification of fish-schools in Chile. Expert Systems with Applications (2013).

17.   H. Ramírez C., A. Seeger, D. Sossa, Commutation principle for variational problems on Euclidean Jordan algebras. SIAM Journal of Optimization, Vol 23, No 3, Pages  687-694 (2013).

18.   Pedro Gajardo, H. Ramírez C., Alain Rapaport, V. Ríquelme, Bioremediation of Natural Resources via Optimal Control Techniques, International Symposium on Mathematical and Computational Biology, Santiago, Chile, November (2011).

19.   J. López, R. López, H. Ramírez C., Characterizing Q-Linear Transformations for Semidefinite Linear Complementarity Problems. Nonlinear Analysis: Theory, Methods and Applications. Volume 75, Issue 3, February 2012, Pages 1441–1448 (2012).

20.   J. Outrata, H. Ramírez C., On the Aubin Property of Critical Points to Perturbed Second-Order Cone Programs. SIAM Journal on Optimization, vol. 21, Issue 3, pp. 798-823. (2011).

21.   P. Gajardo, J. Peña-Torres, and H. Ramírez C., Harvesting economic models and catch-to-biomass dependence: The case of small pelagic fish. Natural Resource Modeling, 24, (2), pp. 268--296. (2011).

22.   P. Gajardo, J. Harmand, H. Ramírez C., A. Rapaport, Minimal time bioremediation of natural water resources. Automatica, vol. 47, pp. 1764-1769. (2011).

23.   M. De Lara, P. Gajardo, and H. Ramírez C., Viable states for monotone harvest models. Systems and Control Letters, 60, pp. 192--197.  (2011).

24.   J. López, H. Ramírez C., On the Central Path and Cauchy Trajectories in Semidefinite Programming. Kibernetika, vol. 46, no. 3, pp. 524-535. (2010).

25.   F. Alvarez, J. López, H. Ramírez C., Interior proximal algorithm with variable metric for second-order cone programming: applications to structural optimization and support vector machines. Optimization Methods and Software, vol. 25, no. 6, pp. 859-881. (2010).

26.   W. Gómez, H. Ramírez C., A Filter Algorithm for Nonlinear Semidefinite Programming.  Computational and Applied Mathematics, vol. 29, no. 2, pp. 297-328. (2010).

27.   P. Gajardo, F. Mazenc, H. Ramírez C., Competitive exclusion principle in a model of chemostat with delays. Dynamics of Continuous, Discrete and Impulsive Systems Series A: Mathematical Analysis, 16, pp. 253-272. (2009).

28.   P. Gajardo, H. Ramírez C., A. Rapaport,  Minimal Time Sequential Batch Reactors with Bounded and Impulse Controls for One or More Species. SIAM Journal on Control and Optimization, vol. 47, Issue 6, pp. 2827-2856. (2008).

29.   A. Auslender and H. Ramírez C. Penalty and Barrier Methods for Convex  Semidefinite Programmming. Mathematical Methods for Operations Research (Ex ZOR), vol. 63, issue 2, 2006.

30.   J. F. Bonnans and H. Ramírez C. Perturbation Analysis of Second-Order Cone Programming Problems.  Math. Programming Series B, vol. 104, Numbers 2-3,  pp. 205 - 227, November 2005.

31.   R. Correa and H. Ramírez C. A Global Algorithm for Nonlinear Semidefinite Programming. SIAM Journal on Optimization, vol 15, N 1, pp. 303-318, 2004.


Other publications (Proceedings, Reports, etc.)

32.   A. Haddon, J. Harmand, H. Ramírez and A. Rapaport. Guaranteed Value Strategy for the Optimal Control of Biogas Production in Continuous Bio-Reactors. IFAC 2017, World Congress. To appear.

33.   Fontbona, J., Ramírez-Cabrera, H., Riquelme, V. and Silva, F. J. Stochastic modelling and control of bioreactorsIFAC 2017, World Congress. To appear.

34.   P. Gajardo, H. Ramírez C., J. Rodríguez, On Optimal feeding for Feeding in Minimal Time a SBR with Several Species, 20th Mediterranean Conference on Control and Automation, Barcelona, Spain. July 2012.

35.   J. López, R. López, H. Ramírez C., Existence and stability results based on asymptotic analysis for Semidefinite Linear Complementarity Problems. Technical Report DIM-CMM Nº B 11/09-241 (2011). Submitted.

36.   V. Martinet, J. Peña, M. Lara, H. Ramírez C., Evaluation of management procedures: Application to Chilean Jack Mackerel fishery. Proceeding of Economics of Fish Resources and Aquatic Ecosystems (IIEFT). (2010).

37.   A. Rapaport,  P. Gajardo and H. Ramírez C.  About Minimal Time Impulsive Control of Sequential Batch Reactors with Several Species. American Control Conference 2007, pp. 6116-6121, IEEE 2007.

38.   J. F. Bonnans and H. Ramírez C. Strong Regularity of Semidefinite Programming Problems. Technical Report DIM-CMM Nº B-05/06-137, 2005.

Books

  • H. Ramírez and E. Moreno. “Grafos: Fundamentos and Algoritmos” (in Spanish). JC Saez Editor 2011.
  • Editor of Math collection books (in Spanish) “Recursos para la Formación Inicial de Profesores” (ReFIP: http://refip.cmm.uchile.cl/). It constitutes a series of 4 books: numbers, data & randomness, geometry and calculus, oriented to improve the formation of school teachers.

 

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