On the Fejér kernel functions with respect to the Walsh-Kaczmarz system.
Gát, György (2001)
Acta Mathematica Academiae Paedagogicae Nyí regyháziensis. New Series [electronic only]
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Gát, György (2001)
Acta Mathematica Academiae Paedagogicae Nyí regyháziensis. New Series [electronic only]
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Schipp, Ferenc (2004)
Acta Mathematica Academiae Paedagogicae Nyí regyháziensis. New Series [electronic only]
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Gát, Gy. (2004)
Acta Mathematica Academiae Paedagogicae Nyí regyháziensis. New Series [electronic only]
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Nagy, Károly (2004)
Acta Mathematica Academiae Paedagogicae Nyí regyháziensis. New Series [electronic only]
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Memic, Nacima (2010)
Mathematica Balkanica New Series
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AMS Subj. Classification: MSC2010: 42C10, 43A50, 43A75 We perform analysis of certain aspects of approximation in multiplicative systems that appear as duals of ultrametric structures, e.g. in cases of local fields, totally disconnected Abelian groups satisfying the second axiom of countability or more general ultrametric spaces that do not necessarily possess a group structure. Using the fact that the unit sphere of a local field is a Vilenkin group, we introduce a new concept...
Goginava, U. (2002)
Georgian Mathematical Journal
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Toka Diagana (2005)
Annales mathématiques Blaise Pascal
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We are concerned with some unbounded linear operators on the so-called -adic Hilbert space . Both the Closedness and the self-adjointness of those unbounded linear operators are investigated. As applications, we shall consider the diagonal operator on , and the solvability of the equation where is a linear operator on .
Konyagin, Sergei V. (2007)
Banach Journal of Mathematical Analysis [electronic only]
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Runovski, K., Schmeisser, H.-J. (2001)
Georgian Mathematical Journal
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