3 citations · 4 across the 8 of their papers we have counts for
11 papers
Observation of light-induced Haldane gap in graphene
Fei Wang, Xuanxi Cai, Wanying Chen +13
Symmetry and topology, encoded in electronic wavefunctions, play a central role in the electronic properties and emergent phenomena of quantum materials. While these properties are…
Robust Floquet-induced gap in irradiated graphite
Fei Wang, Xuanxi Cai, Wanying Chen +6
Floquet engineering provides an emerging pathway for tailoring the electronic states of quantum materials through time-periodic drive. A critical step along this direction is achie…
Moiré-modulated valley in twisted bilayer and twisted double-bilayer MoTe
Wanying Chen, Hongyun Zhang, Jinxi Lu +18
Twisted MoTe hosts intriguing correlated quantum phenomena including the fractional quantum anomalous Hall effect in twisted bilayer (t-BL) MoTe near 3.7, which is…
Average Nikolskii factors for random trigonometric polynomials
Yun Ling, Jiaxin Geng, Jiansong Li +1
For , the Nikolskii factor for a trigonometric polynomial is defined by $$\mathcal N_{p,q}(T_{\bf a})=\frac{\|T_{\bf a}\|_{q}}{\|T_{\bf a}\|_{p}},\…
Optimal quadrature for weighted function spaces on multivariate domains
Jiansong Li, Heping Wang
Consider the numerical integration for weighted Sobolev classes …
Exact Bernstein-Markov inequalities for generalized weights
Jiansong Li, Jiaxin Geng, Yun Ling +1
In this paper, we obtain some exact Bernstein-Markov inequalities for generalized Hermite and Gegenbauer weight. More precisely, we determine the exact values of the extremal…
Weighted least approximation on compact Riemannian manifolds
Jiansong Li, Yun Ling, Jiaxin Geng +1
Given a sequence of Marcinkiewicz-Zygmund inequalities in on a compact space, Gröchenig in \cite{G} discussed weighted least squares approximation and least squares quadratur…
Optimal quadrature errors and sampling numbers for Sobolev spaces with logarithmic perturbation on spheres
Jiaxin Geng, Yun Ling, Jiansong Li +1
In this paper, we study optimal quadrature errors, approximation numbers, and sampling numbers in for Sobolev spaces with logarithmic pert…
Weighted Markov factors with doubling weights on the ball
Jiansong Li, Heping Wang, Kai Wang
Let denote the weighted space of functions on the unit ball with a doubling weight on . The Markov factor for o…
Optimal randomized quadrature for weighted Sobolev and Besov classes with the Jacobi weight on the ball
Jiansong Li, Heping Wang
We consider the numerical integration for the weighted Sobolev classes and the weighted Besov classes $BB_τ^r(L…
Weighted approximation problems on the ball and on the sphere
Jiansong Li, Heping Wang
Let denote the weighted space with the classical Jacobi weight on the ball . We consider the weighted least appr…