Cesàro summability of Taylor series in higher order weighted Dirichlet type spaces

preprint2023arXivOpen access

Abstract

For a positive integer mm and a finite non-negative Borel measure μμ on the unit circle, we study the Hadamard multipliers of higher order weighted Dirichlet-type spaces Hμ,m\mathcal H_{μ, m}. We show that if α>12,α>\frac{1}{2}, then for any ff in Hμ,m,\mathcal H_{μ, m}, the sequence of generalized Ces{à}ro sums {σnα[f]}\{σ_n^α[f]\} converges to ff. We further show that if α=12α=\frac{1}{2} then for the Dirac delta measure supported at any point on the unit circle, the previous statement breaks down for every positive integer mm.

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