Advanced Inequalities (Series on Concrete and Applicable by George A. Anastassiou PDF

By George A. Anastassiou

ISBN-10: 9814317624

ISBN-13: 9789814317627

This monograph offers univariate and multivariate classical analyses of complicated inequalities. This treatise is a fruits of the author's final 13 years of study paintings. The chapters are self-contained and a number of other complicated classes should be taught out of this ebook. broad history and motivations are given in every one bankruptcy with a accomplished checklist of references given on the finish. the subjects coated are wide-ranging and various. fresh advances on Ostrowski style inequalities, Opial sort inequalities, Poincare and Sobolev style inequalities, and Hardy-Opial sort inequalities are tested. Works on usual and distributional Taylor formulae with estimates for his or her remainders and purposes in addition to Chebyshev-Gruss, Gruss and comparability of capability inequalities are studied. the implications provided are often optimum, that's the inequalities are sharp and attained. purposes in lots of components of natural and utilized arithmetic, equivalent to mathematical research, chance, usual and partial differential equations, numerical research, details conception, etc., are explored intimately, as such this monograph is acceptable for researchers and graduate scholars. it will likely be an invaluable instructing fabric at seminars in addition to a useful reference resource in all technological know-how libraries.

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Extra info for Advanced Inequalities (Series on Concrete and Applicable Mathematics)

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Sn , sn+1 ∂xm n+1 xn+1 − sn+1 bn+1 − an+1 ds1 . . dsn xn+1 − an+1 bn+1 − an+1 ds1 . . dsn+1 . Thus is proving the claim. Next we rewrite the last theorem. 15. 10 for m, n ∈ N, xi ∈ [ai , bi ], i = 1, 2, . . , n. Then f Em (x1 , x2 , . . , xn ) := f (x1 , x2 , . . , xn ) 1 − n f (s1 , . . 5in Book˙Adv˙Ineq ADVANCED INEQUALITIES 42 where for j = 1, . . , n we have j−1 i=1 × j−1 [ai ,bi ] i=1 − m−1 1 Aj := Aj (xj , xj+1 , . . , xn ) = (bi − ai ) k=1 (bj − aj )k−1 xj − a j Bk k! bj − a j ∂ k−1 f (s1 , s2 , .

23. 20. We observe for j = 1, . . 50) where (bj − aj )m−1 Γj := m! i=1 × Here we assume (bi − ai ) xj − a j bj − a j Bm j j−1 [ai ,bi ] i=1 ∗ − Bm xj − s j bj − a j ∂mf (s1 , s2 , . . , sj , xj+1 , . . , xn ) ds1 · · · dsj . ∂xm j   j ∂mf  · · · , xj+1 , . . , xn  ∈ L∞ ∂xm j for any (xj+1 , . . 51) j [ai , bi ] i=1 [ai , bi ], any xj ∈ [aj , bj ]. Thus we obtain Γj ≤ (bj − aj )m−1 j−1 Bn j [ai ,bi ] xj − a j bj − a j (bi − ai ) i=1   j m ∂ f × ·, ·, ·, · · · , ·, xj+1 , . . , xn  ∂xm j m!

Let Em (x1 , . . 44), m ∈ N. In particular we assume for j = 1, . . , n that ∂mf (. . , xj+1 , . . , xn ) ∈ L1 ∂xm j for any (xj+1 , . . , xn ) ∈ f |Em (x1 , . . , xn )| ≤ n i=j+1 [ai , bi ]. 1 m! n j [ai , bi ] , i=1 Then (bj − aj )m−1 j−1 j=1 i=1 ∂mf (. . , xj+1 , . . , xn ) ∂xm j (bi − ai ) j 1, [ai ,bi ] i=1 Bm (t) − Bm xj − a j bj − a j . 5in Book˙Adv˙Ineq ADVANCED INEQUALITIES 52 f |E2r (x1 , . . , xn )| ≤ 1 (2r)! n (bj − aj )2r−1 ∂ 2r f (. . , xj+1 , . . , xn ) ∂x2r j j−1 j=1 i=1 (bi − ai ) j 1, [ai ,bi ] i=1 xj − a j bj − a j × (1 − 2−2r )|B2r | + 2−2r B2r − B2r .

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