This is PSTJ Volume 8 Issue 12 first published in December 2017. It is entitled "Progress in Math. Physics: Inextensible Flows, Identities & Lanczos Tensor/Spinor/Scalar" and contains the following articles: (1) A New Approach to Inextensible Flows of Curves with Ribbon Frame; (2) Identities of Gould & Spivey; (3) Non-local Superpotential for the Radiative Part of the Li nard-Wiechert's Electromagnetic Field; (4) Superpotentials for the Lanczos Tensor/Spinor in Godel Geometry; (5) On the Series Transformation Formula of Boyadzhiev; (6) A Note on the Lima's Identity; (7) Paule-Schneider's Identities for Harmonic Numbers; (8) On the Lanczos Generator for Arbitrary Type-D Vacuum Spacetimes; (9) Churchill-Pleba ski & Petrov Classifications for Spacetimes of Embedding Class One; (10) Complex Lanczos Scalar; (11) An Identity Involving Bell & Stirling Numbers; and (12) Identities of Chang-Xu & Spivey. Prespacetime Journal ("PSTJ," http: //www.prespacetime.com) is a publication in which physicists, mathematicians and other learned scholars publish their research results and express their views on the origin, nature and mechanism of spacetime and its possible connection to a prespacetime. It is also a journal where all learned scholars can present their models and experimental results on elemental particles, fundamental forces including gravity and related topics.
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