Ning Zhang

collaborators

3 papers

math.FA2025

A solution to Banach conjecture

Ning Zhang

In this paper, we begin by constructing global linear maps on (n-2)-dimensional subspaces, derived from the local continuity of linear transformations among central sections of a c…

math.DG2025

Range decreasing group homomorphisms and weighted composition operators

Ning Zhang

We present necessary and sufficient conditions for a group homomorphism between spaces of smooth sections of Lie group bundles to be a weighted composition operator. These results…

math.CV2022

Holomorphic sections of line bundles on the jet spaces of the Riemann sphere

Xiaokun Wang, Ning Zhang

Fix a point $t_{0}$ in the circle $S^{1}$ . The space $J^{k} (t_{0}, P^{1})$ of $k$ -jets at $t_{0}$ of $C^{\infty}$ maps from $S^{1}$ to the Riemann sphere $P^{1}$ is a $k + 1$ dimen…