The Invariants of Dual Parallel Equidistant Ruled Surfaces
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DOI: 10.3390/sym15010206
Abstract: In this paper, we calculate the Gaussian curvatures of the dual spherical indicatrix curves formed on unit dual sphere by the Blaschke vectors and dual instantaneous Pfaff vectors of dual parallel equidistant ruled surfaces (DPERS)… read more here.
Keywords: ruled surfaces; parallel equidistant; dual parallel; indicatrix curves ... See more keywords