Yang Huang

activity

20142020

most citedOn Legendrian foliations in contact manifolds II: Deformation theory

2 citations · 6 across the 6 of their papers we have counts for

collaborators

6 papers

math.RA2020

Extensions of Fiedler-Markham's inequality and Thompson's inequality

Yongtao Li, Yang Huang, Lihua Feng +1

We present some new inequalities related to determinant and trace for positive semidefinite block matrices by using symmetric tensor product, which are extensions of Fiedler-Markha…

math.FA2020

Another determinantal inequality involving partial traces

Yongtao Li, Lihua Feng, Weijun Liu +1

Let $A$ be a positive semidefinite $m \times m$ block matrix with each block $n$ -square, then the following determinantal inequality for partial traces holds \[ (\mathrm{tr} A)^{mn}…

math.FA2020★ 2 cited

Some applications of two completely copositive maps

Yongtao Li, Yang Huang, Lihua Feng +1

A linear map $Φ : M_{n} \to M_{k}$ is called completely copositive if the resulting matrix $[Φ (A_{j, i})]_{i, j = 1}^{m}$ is positive semidefinite for any integer $m$ and pos…

math.RT2019

Some properties for morphism of representations

Yang Huang, Yongtao Li, Weijun Liu +1

Let $ψ : G \to G L (V)$ and $φ : G \to G L (W)$ be representations of finite group $G$ . A linear map $T : V \to W$ is called a morphism from $ψ$ to $φ$ if it satisfys $T ψ_{g} = φ_{g} T$ for each…

math.SG2014★ 2 cited

On Legendrian foliations in contact manifolds II: Deformation theory

Yang Huang

Using the structural theorems developed in [Hua13], we study the deformation theory of coisotropic submanifolds in contact manifolds, under the assumption that the characteristic f…

math.SG2014★ 2 cited

Non-existence of certain singularities in Legendrian foliations

Yang Huang

In this paper we show that the singular locus of a Legendrian foliation as defined in [Hua13] is a compact submanifold whose connected components are of codimension at most two. As…