Anisotropic scaling matrices and subdivision schemes

Autor: Bozzini, M, Rossini, M, Sauer, T, Volontè, E

Unlike wavelet, shearlets have the capability to detect directional discontinuities together with their directions. To achieve this, the considered scaling matrices have to be not only expanding, but also anisotropic. Shearlets allow for the definiti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______1299::bb829d6ace4be08bde10e10513dc44d6
http://hdl.handle.net/10281/190382

Directional transforms and pseudo-commuting properties

Autor: Bozzini, M, Ghisi, D, Sauer, T., ROSSINI, MILVIA FRANCESCA

Given a diagonal anisotropic expanding matrix $D\in\ZZ^{\di\times\di},$ we show that it is always possible to detect a unimodular matrix $A\in\ZZ^{\di\times\di}$ that satisfies the pseudo-commuting properties \[DA=A^nD.\] In particular when $\di=2$ t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______1299::f2310719d36c4b967efe29d9c3e3ac93
http://hdl.handle.net/10281/158084

Interpolation by basis functions of different scales and shapes.

Autor: Bozzini, M.¹ bozzini@matapp.unimib.it, Lenarduzzi, L.² licia@mi.imati.cnr.it, Rossini, M.¹ rossini@matapp.unimib.it, Schaback, R.³ schaback@math.uni-goettingen.de

Publikováno v: Calcolo. Jun2004, Vol. 41 Issue 2, p77-87. 11p.

Adaptive interpolation by scaled multiquadrics

Autor: Bozzini M., Lenarduzzi L., Schaback R.

Publikováno v: Advances in computational mathematics 16 (2002): 375–387.
info:cnr-pdr/source/autori:Bozzini M., Lenarduzzi L., Schaback R./titolo:Adaptive interpolation by scaled multiquadrics/doi:/rivista:Advances in computational mathematics/anno:2002/pagina_da:375/pagina_a:387/intervallo_pagine:375–387/volume:16

We present an adaptive method to extract shape-preserving information from a univariate data sample. The behavior of the signal is obtained by interpolating at adaptively selected few data points by a linear combination of multiquadrics with variable

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::f73d1ad3fb95a4229310e700b4afa0a8
http://hdl.handle.net/10281/20056

A stable technique for multiquadric approximation

Autor: Bozzini M., Lenarduzzi L.

Publikováno v: Tenth Int. Conf. Zaragoza-Pau in Applied Mathematics and Statistics, Jaca, Spagna, 2008
info:cnr-pdr/source/autori:Bozzini M., Lenarduzzi L./congresso_nome:Tenth Int. Conf. Zaragoza-Pau in Applied Mathematics and Statistics/congresso_luogo:Jaca, Spagna/congresso_data:2008/anno:2008/pagina_da:/pagina_a:/intervallo_pagine

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=cnr_________::3bd08a805ae5994a0ad38571c8b41813
https://publications.cnr.it/doc/113300