Projectively Flat Finslerian Structures: and Concircular Transformations - Softcover

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Summary 1. Projectively flat Finsler spaces were introduced by Douglas [2], and studied by Berwald [1] for 2-dimension. Okumura [11] gave certain properties of projectively flat non-Riemannian spaces admitting concircular and torse-forming vector fields in association with symmetric and recurrent properties of their curvature tensors. Meher [3] studied projective flatness in a Finsler space when Berwald's curvature tensor is recurrent. He derived relations connecting the curvature tensor and the recurrence vector. Pandey [13] derived a necessary and sufficient condition for the projective flatness of a Finsler space in terms of its isotropic property. Currently, projective flatness of Finsler spaces Fn, n > 2, is studied in association with their sectional curvature, symmetric and recurrent character of their curvature, and normal projective curvature tensor. The notation and symbolism used here are mainly based on the works [10] and [14]. 2. Concircular transformations, introduced by Yano [13] in Riemannian geometry, were extended by Takano [12] to affine geometry with recurrent curvature. Okumura [7] extended these to different types of Riemanna

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