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 Pseudo-Hermitian 2-type Legendre surfaces in the unit sphere $S^5$ Commun. Korean Math. Soc. 2020 Vol. 35, No. 1, 251-260 https://doi.org/10.4134/CKMS.c180530Published online January 31, 2020 Ji-Eun Lee Chonnam National University Abstract : In this paper, we show that it is Chen surfaces that non-minimal pseudo-Hermitian mass-symmetric 2-type Legendre surfaces in $S^5$. Moreover, we show that pseudo-Hermitian mass-symmetric 2-type Legendre surfaces in $S^5$ are the locally product of two pseudo-Hermitian circles. Keywords : Legendre surface, Sasakian space forms, pseudo-Hermitian structure, 2-type, mass-symmetric MSC numbers : Primary 53B25, 53C25 Downloads: Full-text PDF   Full-text HTML