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A method is proposed which allows to calculate within the SCRPA theory theoccupation numbers via the single particle Green function. This scheme complieswith the Hugenholtz van Hove theorem. In an application to the Lipkin model itis found that this prescription gives consistently better results than twoother commonly used approximations: lowest order boson expansion and the numberoperator method.Comment: 25 pages, 10 figures, submitted to Nucl. Phys.

Occupation numbers in Self Consistent RPA