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Positive fixed points of lattices under semigroups of positive linear operators
(University of Hertfordshire, 1993)
Let Z be a Banach lattice endowed with positive cone C and an order-continuous norm [...]. Let G be a semigroup of positive linear endomorphisms of Z. We seek conditions on G sufficient to ensure that the positive fixed ...
Reverse accumulation of functions containing gradients
(1993)
We extend the technique of reverse accumulation so as to allow efficient extraction of gradients of scalar valued functions which are themselves constructed by composing operations which include taking derivatives of ...