Qiquan Fang

activity

20152024

most citedPolynomial control on weighted stability bounds and inversion norms of localized matrices on simple graphs

2 citations · 2 across the 3 of their papers we have counts for

collaborators

3 papers

math.FA2024

On Sylvester equations in Banach subalgebras

Qiquan Fang, Chang Eon Shin, Qiyu Sun

Let $B$ be a Banach algebra and $A$ be a Banach subalgebra that admits norm-controlled inversion in $B$ . In this work, we take $A, B$ in the Banach…

math.FA2019★ 2 cited

Polynomial control on weighted stability bounds and inversion norms of localized matrices on simple graphs

Qiquan Fang, Chang Eon Shin, Qiyu Sun

The (un)weighted stability for some matrices is one of essential hypotheses in time-frequency analysis and applied harmonic analysis. In the first part of this paper, we show that…

math.CA2015

Spectra of Bochner-Riesz means on $L^{p}$

Yang Chen, Qiquan Fang, Qiyu Sun

The Bochner-Riesz means are shown to have either the unit interval $[0, 1]$ or the whole complex plane as their spectra on $L^{p}, 1 \leq p < \infty$

On Sylvester equations in Banach subalgebras

Polynomial control on weighted stability bounds and inversion norms of localized matrices on simple graphs

Spectra of Bochner-Riesz means on Lp

Spectra of Bochner-Riesz means on $L^{p}$