Some Relations between Eigenvalues and Matrix Elements of Linear Operators.
R. E. Gibson Library bulletin translation series,
JOHNS HOPKINS UNIV SILVER SPRING MD APPLIED PHYSICS LAB
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Let H be a Hilbert space and let G sub p be the set of all linear operators A on H such that the trace of A starA sup p2 is finite. G sub p is a two-sided ideal in the algebra of all bounded operators on H if p or 1 it is a Banach algebra under a suitable norm. The principal aim of this paper is to determine a condition under which a linear operator belongs to G sub p. Author
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