Homomorphisms on Banach Spaces
نویسنده
چکیده
If & ^ 1 for each v, then by reasoning analogous to that of the preceding example, it may be shown, for any set (a), that there is no point p such that tp implies that log St(a, £) is concave. Hence Theorem 4 applies to all such functions log St(a, £). However, for this case the conclusion of the general theorem is weaker than the known result that log St(a, £) is convex for all positive t and concave for all negative L
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