1 citations · 1 across the 5 of their papers we have counts for
5 papers
λ-Biharmonic hypersurfaces in the product space L^{m}\times \mathbb{R}
Chao Yang, Zhen Zhao
In this paper, we study λ-biharmonic hypersurfaces in the product space L^{m}\times\mathbb{R}, where L^{m} is an Einstein space and \mathbb{R} is a real line. We prove that λ-bihar…
Hopf actions on vertex algebras
Chongying Dong, Li Ren, Chao Yang
In this article, we investigate Hopf actions on vertex algebras. Our first main result is that every finite-dimensional Hopf algebra that inner faithfully acts on a given π_2-injec…
Hawkes Processes with Delayed Granger Causality
Chao Yang, Hengyuan Miao, Shuang Li
We aim to explicitly model the delayed Granger causal effects based on multivariate Hawkes processes. The idea is inspired by the fact that a causal event usually takes some time t…
Four dimensional hypersurfaces with proper mean curvature vector field in pseudo-Riemannian space forms
Chao Yang, Jiancheng Liu, Li Du
In this paper, we study four dimensional hypersurface M^4_r with proper mean curvature vector field (i.e. Δ\vec{H} is proportional to \vec{H}) in pseudo-Riemannian space form N^5_s…
Orbifold theory for vertex algebras and Galois correspondence
Chongying Dong, Li Ren, Chao Yang
Let be a simple vertex algebra of countable dimension, be a finite automorphism group of and be a central element of . Assume that is a finite set of…