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Extension of covariant derivative(Ⅱ): From flat space to curved space 被引量:4
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作者 Ya-Jun Yin 《Acta Mechanica Sinica》 SCIE EI CAS CSCD 2015年第1期88-95,共8页
This paper extends the classical covariant deriva tive to the generalized covariant derivative on curved sur faces. The basement for the extension is similar to the pre vious paper, i.e., the axiom of the covariant fo... This paper extends the classical covariant deriva tive to the generalized covariant derivative on curved sur faces. The basement for the extension is similar to the pre vious paper, i.e., the axiom of the covariant form invariabil ity. Based on the generalized covariant derivative, a covari ant differential transformation group with orthogonal duality is set up. Through such orthogonal duality, tensor analy sis on curved surfaces is simplified intensively. Under the covariant differential transformation group, the differential invariabilities and integral invariabilities are constructed on curved surfaces. 展开更多
关键词 Tensor analysis on curved surfaces Classicalcovariant derivative and generalized covariant derivative axiom of the covariant form invariability covariant differ-ential transformation group Differential invariabilities andintegral invariabilities
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Generalized covariant differentiation and axiom-based tensor analysis 被引量:3
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作者 Yajun YIN 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI CSCD 2016年第3期379-394,共16页
This paper reports the new progresses in the axiomatization of tensor anal- ysis, including the thought of axiomatization, the concept of generalized components, the axiom of covariant form invariability, the axiomati... This paper reports the new progresses in the axiomatization of tensor anal- ysis, including the thought of axiomatization, the concept of generalized components, the axiom of covariant form invariability, the axiomatized definition, the algebraic structure, the transformation group, and the simple calculation of generalized covariant differentia- tions. These progresses strengthen the tendency of the axiomatization of tensor analysis. 展开更多
关键词 tensor analysis axiom of covariant form invariability generalized compo-nent generalized covariant differentiation covariant differential transformation group
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