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内容説明 Over the last two years， wavelet methods have shown themselves to be of considerable use to harmonic analysts and， in particular， advances have been made concerning their applications. The strength of wavelet methods lies in their ability to describe local phenomena more accurately than a traditional expansion in sines and cosines can. Thus， wavelets are ideal in many fields where an approach to transient behaviour is needed， for example， in considering acoustic or seismic signals， or in image processing. Yves Meyer stands the theory of wavelets firmly upon solid ground by basing his book on the fundamental work of Calder-n， Zygmund and their collaborators. For anyone who would like an introduction to wavelets， this book will prove to be a necessary purchase.