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some properties of 4-dimensional finsler manifolds
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نویسنده
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tayebi akbar
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منبع
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mathematical analysis and convex optimization - 2023 - دوره : 4 - شماره : 2 - صفحه:45 -50
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چکیده
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In this paper, we study cartan torsion, mean cartan torsion and mean landsberg curvature of 4-dimensional finsler metrics. first, we find the necessary and sufficient condition under which a 4-dimensional finsler manifold has bounded cartan torsion and mean cartan torsion. then, we show that a 4-dimensional finsler manifold has relatively isotropic mean landsberg curvature if and only if it is riemannian or the main scalars of finsler metric satisfy the certain conditions.
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کلیدواژه
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cartan torsion ,mean cartan torsion ,mean landsberg curvature ,landsberg curvature
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آدرس
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university of qom, faculty of science, department of mathematics, iran
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پست الکترونیکی
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akbar.tayebi@gmail.com
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Authors
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