一类对偶平坦的球对称的芬斯勒度量（英文）

本文研究了对偶平坦的芬斯勒度量的构造问题.通过分析球对称的对偶平坦的芬斯勒度量的方程的解,我们构造了一类新的对偶平坦的芬斯勒度量,并得到了球对称的芬斯勒度量成为对偶平坦的充分必要条件.     

一类射影平坦的球对称的芬斯勒度量

本文研究了射影平坦芬斯勒度量的构造问题.通过分析射影平坦的球对称的芬斯勒度量的方程的解,构造了一类新的射影平坦的芬斯勒度量,并得到了射影平坦的球对称的芬斯勒度量的射影因子和旗曲率.     

一类射影平坦的球对称的芬斯勒度量（英文）

本文研究了射影平坦芬斯勒度量的构造问题.通过分析射影平坦的球对称的芬斯勒度量的方程的解,构造了一类新的射影平坦的芬斯勒度量,并得到了射影平坦的球对称的芬斯勒度量的射影因子和旗曲率.     

对偶平坦Kropina度量（英文）

本文研究了一类具有奇性的芬斯勒度量——广义Kropina度量.文中给出了刻画广义Kropina度量的等价方程.进一步的研究工作表明,由共形1-形式β构造的Kropina度量是对偶平坦的,当且仅当其中的黎曼度量α是欧氏的,且该1-形式β是常向量场.还给出了一类很有意思的非平凡局部对偶平坦Kropina度量的例子.     

一些球对称射影平坦的Finsler度量的构造

研究刻画球对称Finsler度量的射影平坦性质的偏微分方程,通过对射影平坦Finsler度量PDE的研究,构造了两类球对称射影平坦Finsler度量,得到了一些球对称的射影平坦Finsler度量,并进一步给出这些Finsler度量的射影因子和旗曲率.     

具有迷向$\textbf{E}$曲率的球对称的芬斯勒度量

在这篇文章中, 我们得到了一个偏微分方程,这个方程可以用来描述具有迷向$\textbf{E}$曲率的球对称的芬斯勒度量,通过这个方程,我们讨论了一种特殊的情况.     

芬斯勒—里奇流下若干几何量的演化

本文主要研究了芬斯勒几何中若干重要的几何量沿芬斯勒—里奇流的变化规律.我们首先在芬斯勒—里奇流下得到了若干基本几何量的演化方程,它们对关于芬斯勒—里奇流的研究是至关重要的.进一步,我们在芬斯勒—里奇流下刻画了芬斯勒度量的测地系数和S-曲率的演化规律.     

关于芬斯勒可反系数的一个注记

该文在加权Ricci曲率具有下界时给出了关于芬斯勒Laplacian第一特征值的郑绍远型及Mckean型比较定理,并在加权Ricci曲率非负时得到Calabi-Yau型体积增长定理.这改进和推广了已有的方法和结果.特别地,该文利用芬斯勒度量及其反向度量对应的几何对象之间的关系,去掉或减弱了可反系数有限的条件限制.     

对偶平坦和共形平坦的(α,β)-度量(英文)

本文主要研究了对偶平坦和共形平坦的(α,β)-度量.利用对偶平坦和共形平坦与其测地线的关系,得到了局部对偶平坦和共形平坦的Randers度量是Minkowskian度量的结论.进一步,推广到非Randers型的情形,我们证明了局部对偶平坦和共形平坦的非Randers型的(α,β)-度量在附加的条件下一定是Minkowskian度量.     

芬斯勒几何:一个充满生机的数学领域

回顾芬斯勒几何的发展史,介绍芬斯勒几何的若干主要研究进展,并对芬斯勒几何的发展前景作出积极展望.     

一类对偶平坦的球对称的芬斯勒度量

In this paper,we study spherically symmetric Finsler metrics.By analysing the solution of the spherically symmetric dually flat equation,we construct several new families of dually flat spherically symmetric Finsler metrics.     

On dually flat Finsler metrics

In this paper, we study the locally dually flat Finsler metrics which arise from information geometry. An equivalent condition of locally dually flat Finsler metrics is given. We find a new method to construct locally dually flat Finsler metrics by using a projectively flat Finsler metric under the condition that the projective factor is also a Finsler metric. Finally, we find that many known Finsler metrics are locally dually flat Finsler metrics determined by some projectively flat Finsler metrics.     

Dually flat general spherically symmetric Finsler metrics

Dually flat Finsler metrics arise from information geometry which has attracted some geometers and statisticians. In this paper, we study dually flat general spherically symmetric Finsler metrics which are defined by a Euclidean metric and two related 1-forms. We give the equivalent conditions for those metrics to be locally dually flat. By solving the equivalent equations, a group of new locally dually flat Finsler metrics is constructed.     

On dually flat square metrics

Square metrics arise from several classification problems in Finsler geometry. They are the rare Finsler metrics to be of excellent geometry properties. It is proved that every non-Riemannian dually flat square metric must be Minkowskian if the dimension ≥3. We also obtain a rigidity result in dually flat Matsumoto metrics.     

A new class of projectively flat Finsler metrics with constant flag curvature K=1

In this paper, we consider a class of Finsler metrics which obtained by Kropina change of the class of generalized m-th root Finsler metrics. We classify projectively flat Finsler metrics in this class of metrics. Then under a condition, we show that every projectively flat Finsler metric in this class with constant flag curvature is locally Minkowskian. Finally, we find necessary and sufficient condition under which this class of metrics be locally dually flat.     

一类射影平坦的球对称芬斯勒度量

In this paper, we study spherically symmetric Finsler metrics. Analyzing the solution of the projectively flat equation, we construct a new class of projectively flat Finsler metrics.     

On generalized m-th root finsler metrics

In this paper, we characterize locally dually flat generalized m-th root Finsler metrics. Then we find a condition under which a generalized m-th root metric is projectively related to a m-th root metric. Finally, we prove that if a generalized m-th root metric is conformal to a m-th root metric, then both of them reduce to Riemannian metrics.     

Finsler warped product metrics with special Riemannian curvature properties

One of the fundamental problems in Finsler geometry is to study Finsler metrics of constant(or scalar) curvature. In this paper, we refine and improve Chen-Shen-Zhao equations characterizing Finsler warped product metrics of scalar flag curvature. In particular, we find equations that characterize Finsler warped product metrics of constant flag curvature. Then we improve the Chen-Shen-Zhao result on characterizing Einstein Finsler warped product metrics. As its application we construct explicitly many new warped product Douglas metrics of constant Ricci curvature by using known locally projectively flat spherically symmetric metrics of constant flag curvature.     

On a subclass of the class of generalized Douglas-Weyl metrics

We study a class of Finsler metrics whose Douglas curvature is constant along any Finslerian geodesics. This class of Finsler metrics is a subclass of the class of generalized Douglas-Weyl metrics and contains the class of Douglas metrics as a special case. We find a condition under which this class of Finsler metrics reduces to the class of Landsberg metrics. Then we show this class of metrics contains the class of R-quadratic metrics.