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The focus of this work is to investigate Ricci almost solitons (RAS) on Lorentzian manifolds with a special metric connection called a semi-symmetric metric u-connection (SSM-connection). First, we show that any quasi-Einstein Lorentzian manifold having a SSM-connection, whose metric is RS, is Einstein manifold. A similar conclusion also holds for a Lorentzian manifold with SSM-connection admitting RS whose soliton vector Z is parallel to the vector u. Finally, we examine the gradient Ricci almost soliton (GRAS) on Lorentzian manifold admitting SSM-connection.<\/jats:p>","DOI":"10.3390\/sym15061175","type":"journal-article","created":{"date-parts":[[2023,5,31]],"date-time":"2023-05-31T02:57:10Z","timestamp":1685501830000},"page":"1175","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Characterization of Ricci Almost Soliton on Lorentzian Manifolds"],"prefix":"10.3390","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1614-3228","authenticated-orcid":false,"given":"Yanlin","family":"Li","sequence":"first","affiliation":[{"name":"Key Laboratory of Cryptography of Zhejiang Province, School of Mathematics, Hangzhou Normal University, Hangzhou 311121, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4714-3063","authenticated-orcid":false,"given":"Huchchappa A.","family":"Kumara","sequence":"additional","affiliation":[{"name":"Department of Mathematics, BMS Institute of Technology and Management, Yelahanka, Bangalore 560064, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mallannara Siddalingappa","family":"Siddesha","sequence":"additional","affiliation":[{"name":"Department of Mathematics, Global Campus, Jain (Deemed to Be University), Bangalore 562112, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2082-697X","authenticated-orcid":false,"given":"Devaraja Mallesha","family":"Naik","sequence":"additional","affiliation":[{"name":"Department of Mathematics, Kuvempu University, Shivamogga 577451, India"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,5,31]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Yano, K., and Kon, M. 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