In 1966, Chern asked which compact orientable manifolds carry a Riemannian metric and a vector field which is parallel under this metric. An earlier paper answered this without assuming orientability.
November 9, 2021 -- NSITEXE, Inc. (headquartered in Minato Ward, Tokyo, Japan; President and CEO: Yukihide Niimi; hereinafter “NSITEXE”) announced that the DR1000C, a RISC-V based parallel processor ...
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