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On Bessel's and Grüss Inequalities for Orthonormal Families in 2-Inner Product Spaces and Applications

  • Dragomir, Sever Silverstru (School of Computer Science and Mathematics, Victoria University of Technology) ;
  • Cho, Yeol-Je (Department of Mathematics Education, The Research Institute of Natural Sciences, Gyeongsang National University) ;
  • Kim, Seong-Sik (Department of Mathematics, Dongeui University) ;
  • Kim, Young-Ho (Department of Applied Mathematics, Changwon National University)
  • Received : 2005.04.15
  • Published : 2008.06.30

Abstract

A new counterpart of Bessel's inequality for orthonormal families in real or complex 2-inner product spaces is obtained. Applications for some Gr$\"{u}$ss inequality for determinantal integral inequalities are also provided.

Keywords

References

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  3. S. S. Dragomir, Y. J. Cho, S. S. Kim and J. Roumeliotis, A reverse of Bessel's inequality in 2-inner product spaces and some Gr¨uss type related results with applications, J. Appl. Math. & Computing, 20(1-2)(2006), pp. 279-292. https://doi.org/10.1007/BF02831938
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