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- W2358709969 abstract "For more comprehensive studying portfolio investment model,on the basis of analysing paper[1],an ameliorable method for portfolio investment model after non-positive definite covariance matrix is presented,which used quadric form and symmetrical matrix in the linear algebra.The research has some reference worthiness for optimal investment proportional coefficient." @default.
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- W2358709969 date "2011-01-01" @default.
- W2358709969 modified "2023-09-23" @default.
- W2358709969 title "Ameliorable Model for Portfolio Investment Under Non-Positive Definite Covariance Matrix" @default.
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