A norm inequality for a “finite-section” Wiener-Hopf equation
نویسندگان
چکیده
منابع مشابه
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in this paper, we study the chebyshev centres of bounded subsets of normed spaces and obtain a norm inequality for relative centres. in particular, we prove that if t is a remotal subset of an inner product space h, and f is a star-shaped set at a relative chebyshev centre c of t with respect to f, then llx - qt (x)1i2 2 ilx-cll2 + ilc-qt (c) 112 x e f, where qt : f + t is any choice function s...
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ژورنال
عنوان ژورنال: Illinois Journal of Mathematics
سال: 1963
ISSN: 0019-2082
DOI: 10.1215/ijm/1255637484