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7 papers · 1 filter
Gorenstein homological properties of tensor rings
Xiao-Wu Chen, Ming Lu
Let be a two-sided noetherian ring and be a nilpotent -bimodule, which is finitely generated on both sides. We study Gorenstein homological properties of the tensor ring…
Virtual Neighborhood Technique for Holomorphic Curve Moduli Spaces
An-Min Li, Li Sheng
In this paper we use the approach of Ruan and Li-Ruan to construct virtual neighborhoods and show that the Gromov-Witten invariants can be defined as an integral over top strata of…
Dynamics of social contagions with local trend imitation
Xuzhen Zhu, Wei Wang, Shimin Cai +1
Research on social contagion dynamics has not yet including a theoretical analysis of the ubiquitous local trend imitation (LTI) characteristic. We propose a social contagion model…
Spin-selectable, region-tunable negative differential resistance in graphene double ferromagnetic barriers
Yu Song, Yang Liu, Xiaolong Feng +2
We propose a graphene device that can generate spin-dependent negative differential resistance (NDR). The device is composed of a sufficiently wide and short graphene and two gated…
Modified Ringel-Hall Algebras, Green's formula and Derived Hall Algebras
Ji Lin, Liangang Peng
In this paper we define the modified Ringel-Hall algebra $\cm\ch(\ca)$ of a hereditary abelian category $\ca$ from the category of bounded -graded co…
The core entropy for polynomials of higher degree
Yan Gao, Giulio Tiozzo
As defined by W. Thurston, the core entropy of a polynomial is the entropy of the restriction to its Hubbard tree. For each d >= 2, we study the core entropy as a function on the p…