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On an Extension of Shapiro's Cyclic Inequality
Author(s) -
NguyenMinh Tuan,
LeQuy Thuong
Publication year - 2009
Publication title -
journal of inequalities and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.735
H-Index - 50
eISSN - 1029-242X
pISSN - 1025-5834
DOI - 10.1155/2009/491576
Subject(s) - mathematics , extension (predicate logic) , inequality , mathematical proof , generalization , log sum inequality , quadratic equation , pure mathematics , rearrangement inequality , calculus (dental) , mathematical analysis , geometry , medicine , dentistry , computer science , programming language
We prove an interesting extension of the Shapiro's cyclic inequality for four and five variables and formulate a generalization of the well-known Shapiro's cyclic inequality. The method used in the proofs of the theorems in the paper concerns the positive quadratic forms

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