An alternative formalism for the method
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R. A. Sack
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Article
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1972
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John Wiley and Sons
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English
β 509 KB
## Abstract The methods of intermediate Hamiltonians and of inner projections for the determination of lower bounds of eigenvalues of a Hermitian operator __H__ are analysed and reformulated as linear matrix problems. Submatrices T which are only defined implicitly through the product TT^dΜ^ are be