51 citations · 66 across the 17 of their papers we have counts for
4 papers · 1 filter
Harmonic maps with free boundary from degenerating bordered Riemann surfaces
Lei Liu, Chong Song, Miaomiao Zhu
We study the blow-up analysis and qualitative behavior for a sequence of harmonic maps with free boundary from degenerating bordered Riemann surfaces with uniformly bounded energy.…
On the -th Eigenvalue of Sturm-Liouville Problem and the Maslov Index
Xijun Hu, Lei Liu, Li Wu +1
In the previous papers \cite{HLWZ,KWZ}, the jump phenomena of the -th eigenvalue were completely characterized for Sturm-Liouville problems. In this paper, we show that the jump…
The number of languages with maximum state complexity
Bjørn Kjos-Hanssen, Lei Liu
Câmpeanu and Ho (2004) determined the maximum finite state complexity of finite languages, building on work of Champarnaud and Pin (1989). They stated that it is very difficult to…
Global existence of the harmonic map heat flow into Lorentzian manifolds
Xiaoli Han, Juergen Jost, Lei Liu +1
We investigate a parabolic-elliptic system for maps from a compact Riemann surface into a Lorentzian manifold with a warped product metric. That s…