I obtained my PhD. (in Numerical Analysis) at the University of
Iowa in 1990 under the direction of Kendall E. Atkinson. My current
research interest is in mathematical models for
ecological problems: dynamics of predatorprey type models and ecological
networks algorithms.
Academics:
 Professor of Mathematics, Department of Mathematical Sciences at The University of South Dakota.
 Adjunct Professor, Mathematical, Computational & Modeling
Sciences Center (MCMSC)
at Arizona State University.
 Visiting research faculty, Summer Mathematical and
Theoretical Biology Institute (MTBI) at the Center for
Mathematical, Computational, and Modeling Sciences Center.
Arizona State University. 2009Present.
 MTBI is the
recipient of the 2011
presidential award for excellence in sciences, mathematics,
and engineering mentoring.
 External
collaborator in the grants PUCV Nº 124.730/2012, Fondecyt Nº 1120218. "Multistability and periodicity on
predatorprey models due to ecological phenomena affecting some populations"
Director of the grant: Eduardo GonzálezOlivares 20122014.
 International Collaborator at RodrigoRamos research Lab at
Biodiversirty Laboratories of the National Center for the
Environment (CENMA).
 Environmental pollution goes theoretical ecology OIKOSBlog
 Member of the
Editorial board of BIOMAT Institute for Advance Studies in Biosystems.
 Member of the
Empowering Leadership Alliance
 Member of the Math Alliance
Honors and Awards
 2011 Presidential award for excellence in sciences, mathematics,
and engineering mentoring to MTBI.
 2008 Harrington Lecturer "Research in Mathematical
Ecology and the Struggle for Existence"
 2008
Fulbright Scholar
at the
Institute of Mathematics of the Catholic University of
Valparaiso, Valparaiso, Chile.
 2006
Richard
& Sharon Cutler Faculty Award in Liberal Arts

2004 Governor's Faculty Award for Teaching
with Technology

2002 Governor's Faculty
Award for Teaching
with Technology

1998 Governor's Faculty
Award for Teaching
with Technology
 1997 NSFILI
Project
 1996 USD Professor of the year, Student Association.
Technology in the mathematics curriculum
Multivariable calculus material:
 Animated version of Lagrange's Theorem
(in Spanish).

My MERLOT page.
 Calculus III.
