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[6] Saitoh, S. (1988) Quadratic Inequalities Associated with Integrals of Reproducing Kernels. Linear Algebra and Its Applications, 101, 269-280.
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[7] Saitoh, S. (2003) Generalizations of the Triangle Inequality. Journal of Inequalities in Pure and Applied Mathematics, 4, Article 62.
[8] Sawano, Y. (2011) Pasting Reproducing Kernel Hilbert Spaces. Jaen Journal on Approximation, 3, 135-141.
[9] Yamada, A. (2012) Oppenheim’s Inequality and RKHS. Mathematical Inequalities and Applications, 15, 449-456.
[10] Saitoh, S. (1997) Integral Transforms, Reproducing Kernels and their Applications. Pitman Research Notes in Math. Series 369, Addison Wesley Longman, Harlow.
[11] Saitoh, S. (2010) Theory of Reproducing Kernels: Applications to Approximate Solutions of Bounded Linear Operator Functions on Hilbert Spaces. American Mathematical Society Translations: Series 2, 230, Amer. Math. Soc., Providence, RI.
[12] Castro, L.P., Fujiwara, H., Saitoh, S., Sawano, Y., Yamada, A. and Yamada, M. (2012) Fundamental Error Estimates Inequalities for the Tikhonov Regularization Using Rreproducing Kernels. International Series of Numerical Mathematics 161, Inequalities and Appications 2010, Springer, Basel, 87-101.
[13] Castro, L.P., Saitoh, S., Sawano, Y. and Silva, A.S. (2012) Discrete Linear Differential Equations. Analysis, 32, 181- 191.
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[14] Castro, L.P., Fujiwara, H., Rodrigues, M. M., Saitoh, S. and Tuan, V.K. (2014) Aveiro Discretization Method in Mathematics: A New Discretization Principle. In: Pardalos, P. and Rassias, T.M., Eds., Mathematics without Boundaries: Surveys in Pure Mathematics, in press.
[15] Castro, L.P., Fujiwara, H., Qian, T. and Saitoh, S. (2014) How to Catch Smoothing Properties and Analyticity of Functions by Computers? In: Pardalos, P. and Rassias, T.M., Eds., Mathematics without Boundaries: Surveys in Interdisipinary Research, in press.
[16] Castro, L. P., Saitoh, S. and Yamada, A. (2014) Representations of Solutions of Tichhonov Functional Equations and Applications to Multiplication Operators of the Szego Spaces (submitted).
[17] Takahashi, S. (2014) On the Identities 100/0=0 and 0/0=0. (submitted).
[18] Kuroda, T., Michiwaki, H., Saitoh, S. and Yamane, M. (2014) New Meanings of the Division by Zero and Interpretations on 100/0 = 0 and on 0/0 = 0. International Journal of Applied Mathematics, 27, 191-198.