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Square integrable eigenfunctions of the Schrodinger equation decay exponentially. More precisely, let i-1 ' i

In various numerical problems one is confronted with the task of solving a system of linear inequalities:(1.1) (i = 1, … ,m)assuming, of course, that the above system is consistent. Sometimes one has, in addition, to minimize a given linear form l(x). Thus, in linear programming one obtains a problem of the latter type.

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