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From: eas@utcsrgv.UUCP (Ann Struthers)
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Subject: Numerical Analysis Seminar
Message-ID: <526@utcsrgv.UUCP>
Date: Wed, 28-Nov-84 16:20:26 EST
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Posted: Wed Nov 28 16:20:26 1984
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Organization: CSRI, University of Toronto
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		       NUMERICAL ANALYSIS SEMINAR

		      Thursday, December 6, 1984

			     3:00 P.M.

		    Sandford Fleming Building 1101



	        	Professor Rudi Mathon
	             Department of Computer Science
			University of Toronto


          "Boundary Mehtods for Solving Elliptic Problems with 
		     Singularities and Interfaces"

Boundary approximation techniques are described for solving homogeneous
self-adjoint elliptic equations.  Piecewise expansions into particular
solutions are used which approximate both the boundary and interface
conditions in a least squares sense.  Convergence of such approximations
is proved and error estimates are derived in a natural norm.  Numerical
experiments are reported for the singular Motz problem which yield 
extremely accurate solutions with only a modest computational effort.