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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5 papers · 1 filter

math.FA2026

Uncentred maximal operators with respect to half balls on Damek--Ricci spaces

Nikolaos Chalmoukis, Stefano Meda, Effie Papageorgiou +1

In this paper we study a variant of the uncentred Hardy--Littlewood maximal operator on Damek--Ricci spaces in which balls are replaced by suitable half balls. Perhaps surprisingly…

math.FA2025

Mass Functions and Asymptotic Behavior of Caloric Functions on Affine Buildings

Effie Papageorgiou, Bartosz Trojan

We study the large-time asymptotic behavior of solutions to the discrete-time heat equation, i.e., caloric functions, on affine buildings, including those without transitive group…

math.FA2024

Counting function estimates for coherent frames and Riesz sequences

Effie Papageorgiou, Jordy Timo van Velthoven

We prove various estimates for the asymptotics of counting functions associated to point sets of coherent frames and Riesz sequences. The obtained results recover the necessary den…

math.FA2020

Riesz means on locally symmetric spaces

Effie Papageorgiou

We prove that for a certain class of $n$ dimensional rank one locally symmetric spaces, if $f \in L^{p}$ , $1 \leq p \leq 2$ , then the Riesz means of order $z$ of $f$ converge to $f$ a…

math.FA2019

Riesz means on symmetric spaces

Anestis Fotiadis, Effie Papageorgiou

Let $X$ be a non-compact symmetric space of dimension $n$ . 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…