We present a heterogeneous domain decomposition approach to the Richards equation coupled with surface water flow. Assuming piecewise constant soil parameters in the constitutive equations for saturation and relative permeability, we present a novel domain decomposition approch to the Richards equation involving on fast and robust subdomain solver based on optimization techniques. The coupling ...

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In recognition of his exact determinations of the atomic weights of a large number of the chemical elements, T. W. Richards received the Nobel Prize in Chemistry in 1914. His meticulous techniques resulted in "a degree of accuracy never before attained". This Essay follows Richards from his precocious youth to becoming a celebrated chemist and emphasizes his dedication to forseeing likely sourc...

1 Agribusiness, Arizona State University East, 7001 E. Williams Field Road, Bldg. 130, Mesa, AZ. 85212. Hamilton is Professor in the Orfalea College of Business, Cal Poly University, San Luis Obispo, CA. 93407. Contact author: Richards, phone: 480-727-1488 FAX: 480-727-1510 email: [email protected]. Copyright 2006 Timothy J. Richards. All rights reserved. Do not cite or quote without permission...