6533b7d5fe1ef96bd1263e52

RESEARCH PRODUCT

Characterization of greedy bases in Banach spaces

Oscar BlascoPablo M. Berná

subject

Numerical AnalysisPure mathematicsProperty (philosophy)Basis (linear algebra)Applied MathematicsGeneral Mathematics010102 general mathematicsBanach space010103 numerical & computational mathematicsCharacterization (mathematics)01 natural sciencesLinear subspaceFunctional Analysis (math.FA)Mathematics - Functional AnalysisFOS: MathematicsProperty a0101 mathematicsAnalysisMathematics

description

Abstract We shall present a new characterization of greedy bases and 1-greedy bases in terms of certain functionals defined using distances to one dimensional subspaces generated by the basis. We also introduce a new property that unifies the notions of unconditionality and democracy and allows us to recover a better dependence on the constants.

https://dx.doi.org/10.48550/arxiv.1604.07260