Search Results - "Zhongmin Shen"

On the projective Ricci curvature by Shen, Zhongmin, Sun, Liling

“…The notion of the Ricci curvature is defined for sprays on a manifold. With a volume form on a manifold, every spray can be deformed to a projective spray. The…”
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On strongly Ricci-Quadratic Finsler Metrics by Sevim, Esra Sengelen, Shen, Zhongmin, Ülgen, Semail

“…Finsler metrics being Ricci-quadratic is a non-Riemannian condition since the Ricci curvature (tensor) is always Ricci-quadratic for Riemannian metrics. In…”
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Nonlinear spectrums of Finsler manifolds by Kristály, Alexandru, Shen, Zhongmin, Yuan, Lixia, Zhao, Wei

“…In this paper we investigate the spectral problem in Finsler geometry. Due to the nonlinearity of the Finsler–Laplacian operator, we introduce faithful…”
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On Some Ricci Curvature Tensors in Finsler Geometry by Sevim, Esra Sengelen, Shen, Zhongmin, Ulgen, Semail

“…In this paper, we discuss several Ricci curvature tensors and their relationship with the Ricci curvature and some non-Riemannian quantities. By these Ricci…”
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Some projectively Ricci-flat (α,β)-metrics by Gabrani, Mehran, Sevim, Esra Sengelen, Shen, Zhongmin

“…In this paper, we construct some projectively Ricci-flat Finsler metrics defined by a Riemannian metric α and a 1-form β . Moreover, we classify the…”
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Diagenetic fluid evolution and water-rock interaction model of carbonate cements in sandstone： An example from the reservoir sandstone of the Fourth Member of the Xujiahe Formation of the Xiaoquan-Fenggu area, Sichuan Province, China by Liu, SiBing, Huang, SiJing, Shen, ZhongMin, Lü, ZhengXiang, Song, RongCai

“…Carbonate cement is the most abundant cement type in the Fourth Member of the Xujiahe Formation in the Xiaoquan-Fenggu area of the West Sichuan Depression…”
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Characterization of ultra-deeply buried middle Triassic Leikoupo marine carbonate petroleum system (!) in the Western Sichuan depression, China by Sun, Tengjiao, Luo, Xiaoping, Mi, Wentian, Woods, Adam, Chiarella, Domenico, Qing, Hairuo, Ma, Yongsheng, Kou, Xueling, Shen, Zhongmin, Xu, Guosheng, Yuan, Haifeng, Liang, Jiaju, Xu, Fanghao, Wang, Hao, Gong, Xiaoxing, Luo, Jian, Jin, Tingfu, Lv, Xiaowei

“…Ultra-deeply buried (>5000 m) marine carbonate reservoirs have gradually become important exploration targets. This research focuses on providing an…”
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Geochemical Characteristics and Origin of Formation Water From the Upper Triassic Xujiahe Tight Sandstone in the Xiaoquan-Fenggu Structural Belt, Western Sichuan Depression, China by Wang, Peng, Yin, Shuai, Shen, Zhongmin, Zhu, Tong, Zhang, Wenkai

“…Formation water represents an important driving force and carrier for the migration and accumulation of oil and gas; thus, research on its origin is a hot spot…”
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Einstein Finsler metrics and Killing vector fields on Riemannian manifolds by Cheng, XinYue, Shen, ZhongMin

“…We use a Killing form on a Riemannian manifold to construct a class of Finsler metrics. We find equations that characterize Einstein metrics among this class…”
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Conformal vector fields on some Finsler manifolds by Shen, ZhongMin, Yuan, MinGao

“…We study conformal vector fields on a Finsler manifold whose metric is defined by a Riemannian metric, a 1-form and its norm. We find PDEs characterizing…”
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Carbon and Oxygen Isotopic Composition of Saline Lacustrine Dolomite Cements and Its Palaeoenvironmental Significance: A Case Study of Paleogene Shahejie Formation, Bohai Sea by Hailong Meng, Zhengxiang Lv, Zhongmin Shen, Chenhao Xiong

“…The dolomite reservoirs in the Paleogene Shahejie Formation in the Bozhong area of the Bohai Bay Basin contain a large amount of dolomite cement. Petrologic…”
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Riemann-Finsler Geometry with Applications to Information Geometry by Shen, Zhongmin

“…AbstractInformation geometry is a new branch in mathematics, originated from the applications of differential geometry to statistics. In this paper we briefly…”
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On a class of two-dimensional Finsler manifolds of isotropic S-curvature by Cheng, Xinyue, Shen, Zhongmin, Yang, Guojun

“…For an（α, β）-metric（non-Randers type） of isotropic S-curvature on an n-dimensional manifold with non-constant norm ‖β‖α, we first show that n = 2, and then we…”
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On conformal vector fields on Randers manifolds by Shen, ZhongMin, Xia, QiaoLing

“…In this paper, we study conformal vector fields on a Randers manifold with certain curvature prop- erties. In particular, we completely determine conformal…”
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Fluid-rock interaction and dissolution of feldspar in the Upper Triassic Xujiahe tight sandstone, western Sichuan Basin, China by Liu, Sibing, Chen, Anqing, Shen, Zhongmin, Lv, Zhengxiang, Zhang, Xiaoxing

“…Secondary porosity in the Upper Triassic Xujiahe tight sandstone of the western Sichuan Basin is mainly the product of feldspar dissolution. In the Xu-4…”
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Projectively flat Finsler metrics of constant flag curvature by Shen, Zhongmin

“…Finsler metrics on an open subset in \textup{R}^n with straight geodesics are said to be projective. It is known that the flag curvature of any projective…”
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Volume Comparison and Its Applications in Riemann–Finsler Geometry by Shen, Zhongmin

“…We introduce a new geometric quantity,the mean covariationfor Finsler metrics, and establish a volume comparison theorem. As an application, we obtain some…”
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Effect of welding defects on fatigue behavior of Ni-base superalloy GH4065A by Li, Linhan, Zhang, Ji, Tian, Chenggang, Yang, Shanjie, Shen, Zhongmin, Zhang, Wenyun, Zhang, Beijiang

“…The spot-welding defects of highly alloyed Ni-base superalloy GH4065A were investigated by using SEM and EBSD analysis methods. Effects of the welding defects…”
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Gas and water reservoir differentiation by time-frequency analysis: a case study in southwest China by Hongying, Lu, Bingjie, Cheng, Zhongmin, Shen, Tianji, Xu

“…Since the favorable conditions of gas migration and accumulation in the deep Xujiahe formation of west Sichuan depression, a couple of high-yielding gas wells…”
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Geochemical characteristics of natural gas in the hydrocarbon accumulation history, and its difference among gas reservoirs in the Upper Triassic formation of Sichuan Basin, China by Wang, Peng, Liu, Sibing, Shen, Zhongmin, Huang, Fei, Luo, Zili, Chen, Fei

“…The analysis of hydrocarbon generation, trap formation, inclusion homogenization temperature, authigenic illite dating, and ESR dating were used to understand…”
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