On closed timelike and spacelike ruled surfaces
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DOI: 10.1002/mma.4011
Abstract: In this study, by using the concepts and results on spherical curves in dual Lorentzian space, we give the criterions for ruled surfaces with non-lightlike ruling to be closed (periodic). Moreover, we obtain the necessary… read more here.
Keywords: spacelike ruled; ruled surfaces; closed timelike; timelike spacelike ... See more keywords