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    COLLOQUIUM OF THE LABORATORY FOR COMPUTER DESIGN OF MATERIALS
        Institute for Computational Sciences and Informatics
	                      CSI 898-Sec 001  
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                     Parametric Hamiltonians

		        Fernando Ruette
        Instituto de Investigaciones Cientificas, Venezuela, and
              Physical and Chemical Properties Division,
         Institute of Standards and Technology, Gaithersburg, MD

The solution of the Schroedinger equation for systems with many electrons
is a formidable computational challenge. Recently we have implemented a
new approximation to solve this equation based on a generalization of
the so called "semi-empirical" methods. The new approach is computationally
efficient and allows for the study of rather large systems. A discussion
on the application of parametric Hamiltonians to the study of atomic clusters
and catalytic reactions will be given in this talk.

	                 Monday , March 29 1999
                                 4:30 pm
                        Room 206, Science & Tech. I

Refreshments will be served.
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(http://www.csi.gmu.edu/lcdm/seminar/schedule.html)