On isomorphisms by orthogonality of a normed space and an inner product space.
Miličić, M. (1996)
Publications de l'Institut Mathématique. Nouvelle Série
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Displaying similar documents to “Characterizations of convexities of normed spaces by means of -angles.”
On isomorphisms by orthogonality of a normed space and an inner product space.
On characterizations of inner-product spaces.
Kapoor, O.P., Prasad, Jagadish (1984)
Publications de l'Institut Mathématique. Nouvelle Série
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Characterizations of inner product structures involving the radius of the inscribed or circumscribed circumference
Claudi Alsina, Piedad Guijarro Carranza, M. S. Tomás (1996)
Archivum Mathematicum
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We define the radius of the inscribed and circumscribed circumferences in a triangle located in a real normed space and we obtain new characterizations of inner product spaces.
On the Fekete-Szegő theorem for close-to-convex functions.
Chonweerayoot, A., Thomas, D.K., Upakarnitikaset, W. (1992)
Publications de l'Institut Mathématique. Nouvelle Série
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A remark on polyconvex envelopes of radially symmetric functions in dimension
Ondřej Došlý (1997)
Applications of Mathematics
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We study polyconvex envelopes of a class of functions related to the function of Kohn and Strang introduced in . We present an example of a function of this class for which the polyconvex envelope may be computed explicitly and we also point out some general features of the problem.
Characterizations of inner product spaces through an isosceles trapezoid property
Claudi Alsina, P. Cruells, M. S. Tomás (1999)
Archivum Mathematicum
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Generalizing a property of isosceles trapezoids in the real plane into real normed spaces, a couple of characterizations of inner product spaces (i.p.s) are obtained.