A geometrical proof of a new inequality for the gamma function.
On the determination of strict t-norms on some diagonal segments.
On some Orthogonality Relations in Real Normed Spaces and Characterizations of Inner Products
Using some functionals which fulfil much more general requirements than the usual axioms of inner products and by considering some weak versions of orthogonal relations in real normed spaces we find new characterizations of inner products in the cases of James and Pythagoras orthogonalities but we show that this is not the case when Birkhoff orthogonality is postulated.
Some remarkable lines of triangles in real normed spaces and characterizations of inner product structures.
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