Complex-valued functions f 1 , ..., f r on R d are refinable if they are linear combinations of finitely many of the rescaled and translated functions f i (Ax&k), where the translates k are taken along a lattice 1/R d and A is a dilation matrix that expansively maps 1 into itself. Refinable function
Approximation by translates of refinable functions
โ Scribed by Christopher Heil; Gilbert Strang; Vasily Strela
- Publisher
- Springer-Verlag
- Year
- 1996
- Tongue
- English
- Weight
- 160 KB
- Volume
- 73
- Category
- Article
- ISSN
- 0029-599X
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๐ SIMILAR VOLUMES
We consider \(L_{p}\)-approximation ( \(1 \leqslant p \leqslant \infty\) ) from the dilates of a space generated by a finite number of functions that have mild polynomial decay at infinity. In particular, the local-controlled density order of such a family of approximating spaces is characterized in
If f t and its Fourier transform F t satisfy some growth conditions and if c n 0 is a sequence of distinct real numbers satisfying a certain separation condition, we ลฝ . represent those functions g t which are in the closure of the linear span of a ร ลฝ .4 ลฝ . nonfundamental sequence f c y t in L R .