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Hyperstability of the Fréchet equation and a characterization of inner product spaces
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نویسنده
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bahyrycz a. ,brzdȩk j. ,piszczek m. ,sikorska j.
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منبع
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journal of function spaces - 2013 - دوره : 2013 - شماره : 0
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چکیده
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We prove some stability and hyperstability results for the well-known fréchet equation stemming from one of the characterizations of the inner product spaces. as the main tool,we use a fixed point theorem for the function spaces. we finish the paper with some new inequalities characterizing the inner product spaces. © 2013 anna bahyrycz et al.
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آدرس
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department of mathematics,pedagogical university,podchorazych 2, Poland, department of mathematics,pedagogical university,podchorazych 2, Poland, department of mathematics,pedagogical university,podchorazych 2, Poland, institute of mathematics,university of silesia,bankowa 14, Poland
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Authors
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