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On determination of best-possible constants in integral inequalities involving derivatives


Author: Beny Neta
Journal: Math. Comp. 35 (1980), 1191-1193
MSC: Primary 26D15; Secondary 46E30, 65J99
DOI: https://doi.org/10.1090/S0025-5718-1980-0583496-X
MathSciNet review: 583496
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Abstract: This paper is concerned with the numerical approximation of the best possible constants ${\gamma _{n,k}}$ in the inequality \[ {\left \| {{F^{(k)}}} \right \|^2} \leqslant \gamma _{n,k}^{ - 1}\;\left \{ {{{\left \| F \right \|}^2} + {{\left \| {{F^{(n)}}} \right \|}^2}} \right \},\] where \[ {\left \| F \right \|^2} = \int _0^\infty |F(x){|^2}\;dx.\] A list of all constants ${\gamma _{n,k}}$ for $n \leqslant 10$ is given.


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Article copyright: © Copyright 1980 American Mathematical Society