tải kubet cho iphone Extension operators are the most natural way to define for non-integer ''s'' (we cannot work directly on ''X'' since taking Fourier transform is a global operation). We define by saying that ''u'' is in if and only if ''Au'' is in . Equivalently, complex interpolation yields the same spaces so long as ''X'' has an extension operator. If ''X'' does not have an extension operator, complex interpolation is the only way to obtain the spaces. Enhance your purchase with Clyde protection
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