Some topics of current interest in dislocation theory are discussed. Includ
ed are considerations of the elastic fields of dislocations with emphasis o
n nonlinear and anisotropic elastic effects and boundary conditions for com
puter simulations. Also discussed are core structures, extended dislocation
arrays, boundaries and interfaces and dislocations in thin films. (C) 2000
Acta Metallurgica Inc. Published by Elsevier Science Ltd. All rights reser
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