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Some invariants of quarter-symmetric metric connections under the projective transformation

Han Yanling (Dept. of Applied Mathematics, Nanjing University of Science and Technology, Nanjing, P. R. China + School of Science, Qilu University of Technology, Jinan, P. R. China)
Yun Tal Ho (Faculty of Mathematics, Kim Tl Sung University, Pyongyang, Democratic People's Republic of Korea)
Zhao Peibiao (Dept. of Applied Mathematics, Nanjing University of Science and Technology, Nanjing, P. R. China)

This paper studies the characteristics of quarter-symmetric metric connections. Some invariants with respect to the projective transformation are obtained.

Keywords: Connection Transformations, Semi-symmetric Connections, Weyl Curvature tensors, Quarter-symmetric Metric Connections