This book discusses the theory of wavelets on local fields of positive characteristic. The discussion starts with a thorough introduction to topological groups and local fields. It then provides a proof of the existence and uniqueness of Haar measures on locally compact groups. It later gives several examples of locally compact groups and describes their Haar measures. The book focuses on multiresolution analysis and wavelets on a local field of positive characteristic. It provides characterizations of various functions associated with wavelet analysis such as scaling functions, wavelets, MRA-wavelets and low-pass filters. Many other concepts which are discussed in details are biorthogonal wavelets, wavelet packets, affine and quasi-affine frames, MSF multiwavelets, multiwavelet sets, generalized scaling sets, scaling sets, unconditional basis properties of wavelets and shift invariant spaces.
责任者译名:博格斯。
Fourierovo predstavljanje signala
Walsh Series: An Introduction to Dyadic Harmonic Analysis
These are used in the last two chapters. The first covers the Heisenberg group which encode the Heisenberg uncertainty principle. This is first instance of the use of infinite dimensional representations.
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These points are worth remembering; they are among the basic lessons of Fourier analysis. The reader can see how they work by examining the entries Table 1 in §2.1. For instance, the sawtooth wave in entry 1 is piecewise smooth but not ...
... light by lens , techniques for character recog- nition , by radar , and stereoscopic illustration in holograms . Underlying princi- ples of these techniques have close connections to FT . Before getting into details , it is necessary to ...
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