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a ε-projectively flat connection on kenmotsu manifolds
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نویسنده
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pirhadi vahid
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منبع
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mathematical analysis and convex optimization - 2020 - دوره : 1 - شماره : 1 - صفحه:7 -14
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چکیده
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In this paper, we introduce a semi-symmetric non-metric connection on ε- kenmotsu manifolds that changes an ε-kenmotsu manifold into an einstein manifold. next, we consider an especial version of this connection and show that every kenmotsu manifold is ε-projectively flat with respect to this connection. also, we prove that if the kenmotsu manifold m is a ε-concircular flat with respect to the new connection, then m is necessarily of zero scalar curvature. then, we review the sense of ε-conformally flat on kenmotsu manifolds and show that a ε-conformally flat kenmotsu manifold with respect to the new connection is an ε-einstein with respect to the levi-civita connection. finally, we prove that there is no ε-conharmonically flat kenmotsu manifold with respect to this connection.
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کلیدواژه
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kenmotsu manifold ,ε-einstein manifold ,ε-concircular flat manifold ,ε-conformally flat manifold ,ε-conharmonically flat manifold ,ε-projectively flat manifold
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آدرس
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university of kashan, faculty of mathematical sciences, iran
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پست الکترونیکی
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v.pirhadi@aut.ac.ir;v.pirhadi@kashanu.ac.ir
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Authors
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