E. Papageorgiou

activity

20172026

most citedAsymptotic behavior of solutions to the heat equation on noncompact symmetric spaces

9 citations · 11 across the 18 of their papers we have counts for

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3 papers · 1 filter

math.CA2022★ 2 cited

Large sets containing no copies of a given infinite sequence

Mihail N. Kolountzakis, Effie Papageorgiou

Suppose $a_{n}$ is a real, nonnegative sequence that does not increase exponentially. For any $p < 1$ we contruct a Lebesgue measurable set $E \subseteq R$ which has measure a…

math.CA2021

How many Fourier coefficients are needed?

Benedikt Diederichs, Mihail N. Kolountzakis, Effie Papageorgiou

We are looking at families of functions or measures on the torus which are specified by a finite number of parameters $N$ . The task, for a given family, is to look at a small numbe…

math.CA2019

Riesz means on homogeneous trees

Effie Papageorgiou

Let $T$ be a homogeneous tree. We prove that if $f \in L^{p} (X)$ , $1 \leq p \leq 2$ , then the Riesz means $S_{R}^{z} (f)$ converge to $f$ almost everywhere as $R\…