Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Nikolaos Chalmoukis"'
Publikováno v:
Web of Science
We present various results concerning the two-weight Hardy's inequality on infinite trees. Our main scope is to survey known characterizations (and proofs) for trace measures, as well as to provide some new ones. Also for some of the known characteri
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http://arxiv.org/abs/2110.05450
http://arxiv.org/abs/2110.05450
We discuss random interpolation in weighted Dirichlet spaces $\mathcal{D}_\alpha$, $0\leq \alpha\leq 1$. While conditions for deterministic interpolation in these spaces depend on capacities which are very hard to estimate in general, we show that ra
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http://hdl.handle.net/11585/851846
http://hdl.handle.net/11585/851846
It is a classical theorem of Sarason that an analytic function of bounded mean oscillation ($BMOA$), is of vanishing mean oscillation if and only if its rotations converge in norm to the original function as the angle of the rotation tends to zero. I
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In this work we study what we call Siegel--dissipative vector of commuting operators $(A_1,\ldots, A_{d+1})$ on a Hilbert space $\mathcal H$ and we obtain a von Neumann type inequality which involves the Drury--Arveson space $DA$ on the Siegel upper
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Autor:
Nikolaos Chalmoukis, Matteo Levi
Publikováno v:
Concrete Operators, Vol 6, Iss 1, Pp 20-32 (2019)
We consider the Dirichlet problem on infinite and locally finite rooted trees, and we prove that the set of irregular points for continuous data has zero capacity. We also give some uniqueness results for solutions in Sobolev $ W^{1,p} $ of the tree.
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http://arxiv.org/abs/1811.02263
http://arxiv.org/abs/1811.02263
Autor:
Nikolaos Chalmoukis
Publikováno v:
Proceedings of the American Mathematical Society
We introduce a natural generalization of a well studied integration operator acting on the family of Hardy spaces in the unit disc. We study the boundedness and compactness properties of the operator and finally we use these results to give simple pr
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http://arxiv.org/abs/1909.00636
http://arxiv.org/abs/1909.00636
Autor:
Nikolaos Chalmoukis
Publikováno v:
Advances in Mathematics. 381:107634
We give a characterization of onto interpolating sequences with finite associated measure for the Dirichlet space in terms of condenser capacity. In the Sobolev space H 1 ( D ) we define a natural notion of onto interpolation and we prove that the sa
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https://doi.org/10.1016/j.aim.2021.107634
https://doi.org/10.1016/j.aim.2021.107634
Publikováno v:
Results in Mathematics. 76(4)
We study the quasi-nilpotency of generalized Volterra operators on spaces of power series with Taylor coefficients in weighted $\ell^p$ spaces $1
Comment: 14 pages; The main theorems are the same as in v1, the presentation of the material though
Comment: 14 pages; The main theorems are the same as in v1, the presentation of the material though
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