Numerical Analysis:  I obtained my PhD. in Numerical Analysis at the University of Iowa (1990) under the direction of professor Kendall E. Atkinson. The title of my thesis is "Iterative Method for Solving Integral Equations of Second Kind." 

Mathematical Ecology: Recently I have been working in mathematical models derived from ecological problems; predator-prey type of models with Allee effect and ecological networks algorithms. 

  1. During the summer 2009 I participated as visiting research faculty at the Mathematical and Theoretical Biology Institute MTBI an academic institute at  the Mathematical , in the  Computational, and Modeling Sciences Center (CMSC) at Arizona State University.
  2. I collaborate with the group of Mathematical Ecology at the Pontificia Universidad Catolica de Valparaiso, in Valparaiso Chile. We are working in predator-prey models incorporating Allee effect in the prey population.
  3. I collaborate with the Ecological Network group at the Universidad de Chile in Santiago Chile.  Our work consists in computational analysis and algorithms of ecological networks.
  4. I collaborate with the a colleague at the Universidad Catolica del Maule, Talca, Chile.

Research profile

Recent publications and Presentation (PDF)  

Technology in the mathematics curriculum

Multivariable calculus material:

  1. Animated version of Lagrange's Theorem (in spanish). 
  2. My MERLOT page. 
  3. Calculus III.