Let A and B be m-accretive linear operators in a complex Hubert space H with D{A) C D(B). The method of quasi-reversibility is used to obtain a solution to the Sobolev equation (d/dt)[(I + B)u(t)] + Au(t) = 0, 0 < l < 1, which approximates a specified final value u(\) = f. In general, when D(A) C D(B), it is not possible to find a solution which achieves exactly the final value w(l) = /. 1. Let...

satisfying the prescribed final-value, u(T) = f. We assume A is maximal accretive, so the problem is generally not well-posed. Assume in addition that A2 is accretive. We shall demonstrate that there is at most one solution of this problem, and we give a constructive quasireversibility method of constructing solutions of (1.1) which approximately satisfy the final condition. In particular, one ...

This essay introduces a new featured section, to be published in Small Axe annually, that explores the critical vocabulary of field Caribbean studies.

Abstract “Queer” is a relatively recent and somewhat controversial term in African studies. Yet it proving to be productive, not only for understanding subjectivities of sexuality gender, but also situating Africa’s position the larger economy knowledge. Otu van Klinken explore productive tensions between “queer” “Africa,” aim read Africa as queer from Africa. Thus, rather than imagining polar ...