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  • 1 Óbuda University, 1034 Budapest, Hungary
  • 2 Babeş—Bolyai University, Cluj-Napoca 400591, Romania
  • 3 Society for Electronic Transactions and Security, MGR Knowledge City, CIT Campus, Taramani, Chennai 600113, India
  • 4 Indian Institute of Technology Madras, Chennai 600036, India
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In this paper we deduce some tight Turán type inequalities for Tricomi confluent hypergeometric functions of the second kind, which in some cases improve the existing results in the literature. We also give alternative proofs for some already established Turán type inequalities. Moreover, by using these Turán type inequalities, we deduce some new inequalities for Tricomi confluent hypergeometric functions of the second kind. The key tool in the proof of the Turán type inequalities is an integral representation for a quotient of Tricomi confluent hypergeometric functions, which arises in the study of the infinite divisibility of the Fisher-Snedecor F distribution.

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