We study D-homothetic deformations of almost contact manifolds with B-metric. Some basic classes are known to be invariant under these deformations. We examine the invariance of remaining basic classes. Also we investigate D-homothetic deformations of normal and K-contact structures. We give examples of deformations of almost contact manifolds with B-metric structures in three dimensions.
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Şirin AKTAY (2024) studied this question.
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