A Necessary and Suucient Condition for Equality in the Matrix Fisher-information-inequality

نویسنده

  • Ram Zamir
چکیده

A necessary and suucient condition for equality in the matrix form of the Fisher-Information inequality is derived. In this technical report we consider the matrix form of the Fisher Information Inequality (FII), which was introduced in 5]. In particular, we provide a necessary and suucient condition for equality in the matrix-FII. We rst introduce a special form of Fisher Information (FI), called the FI with respect to a translation parameter, which does not involve explicitly a parameter. Let f(x) be the density of

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تاریخ انتشار 1997