In this note we give a simple condition for nondegeneracy of symmetric bilinear forms on infinite dimensional vector spaces. We apply this condition and elementary properties of Fourier series to ...
Statistical exponential families invariant with respect to the groups of the cone or the paraboloid of revolution are discussed. B(x,y) denotes the symmetric bilinear form on x0y0 - x1y1 - ⋯ - xdyd on ...
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