Geodesic
Semi-symmetric four dimensional neutral Lie groups
Czechoslovak Mathematical Journal, Tome 70 (2020) no. 2, pp. 393-410.

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The present paper is concerned with obtaining a classification regarding to four-dimensional semi-symmetric neutral Lie groups. Moreover, we discuss some geometric properties of these spaces. We exhibit a rich class of non-Einstein Ricci soliton examples.
DOI : 10.21136/CMJ.2019.0342-18
Classification : 53C25, 53C30, 53C50
Keywords: semi-symmetric; Lie group, Ricci soliton 
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Haji-Badali, Ali; Zaeim, Amirhesam. Semi-symmetric four dimensional neutral Lie groups. Czechoslovak Mathematical Journal, Tome 70 (2020) no. 2, pp. 393-410. doi : 10.21136/CMJ.2019.0342-18. http://geodesic.mathdoc.fr/articles/10.21136/CMJ.2019.0342-18/

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