Jian-Song Li

activity

20222026

most citedRobust Floquet-induced gap in irradiated graphite

3 citations · 4 across the 8 of their papers we have counts for

collaborators

Showing math.CAShow all

3 papers · 1 filter

math.CA2025

Average Nikolskii factors for random trigonometric polynomials

Yun Ling, Jiaxin Geng, Jiansong Li +1

For $1 \leq p, q \leq \infty$ , the Nikolskii factor for a trigonometric polynomial $T_{a}$ is defined by $$\mathcal N_{p,q}(T_{\bf a})=\frac{\|T_{\bf a}\|_{q}}{\|T_{\bf a}\|_{p}},\…

math.CA2024

Exact $L_{2}$ Bernstein-Markov inequalities for generalized weights

Jiansong Li, Jiaxin Geng, Yun Ling +1

In this paper, we obtain some exact $L_{2}$ Bernstein-Markov inequalities for generalized Hermite and Gegenbauer weight. More precisely, we determine the exact values of the extremal…

math.CA2022★ 1 cited

Weighted $L_{p}$ Markov factors with doubling weights on the ball

Jiansong Li, Heping Wang, Kai Wang

Let $L_{p, w}, 1 \leq p < \infty,$ denote the weighted $L_{p}$ space of functions on the unit ball $B^{d}$ with a doubling weight $w$ on $B^{d}$ . The Markov factor for $L_{p, w}$ o…

Average Nikolskii factors for random trigonometric polynomials

Exact L2​ Bernstein-Markov inequalities for generalized weights

Weighted Lp​ Markov factors with doubling weights on the ball

Exact $L_{2}$ Bernstein-Markov inequalities for generalized weights

Weighted $L_{p}$ Markov factors with doubling weights on the ball