Aane Systems in L 2 Ir D Ii:dual Systems Aane Systems in L 2 Ir D Ii:dual Systems
نویسندگان
چکیده
The berization of a ne systems via dual Gramian techniques, that was developed in previous papers of the authors, is applied here for the study of a ne frames which have an a ne dual system. Gramian techniques are also used to verify whether a dual pair of a ne frames is a also a pair of bi-orthogonal Riesz bases. A general method for a painless derivation of a dual pair of a ne frames from an arbitrary MRA is obtained via the mixed extension principle. AMS (MOS) Subject Classi cations: Primary 42C15, Secondary 42C30
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