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International Journal of Mathematical Education in Science and Technology Volume 26, 1995 - Issue 4

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Pages 619-637 | Published online: 09 Jul 2006

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https://doi.org/10.1080/0020739950260416

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References

Protter , M. H. and Weinberger , H. F. 1967 . Maximum Principles in Differential Equations , Englewood Cliffs, NJ : Prentice Hall .
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Cosner , C. and Schaefer , P. W. 1989 . Proc. Royal Soc. Edinburgh , 111A : 347
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Collatz , L. 1948 . Eigenwertprobleme und Ihre Numerische Behandlung , 73 76 New York : Chelsea Publ. Co. .
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Schröder , J. 1980 . Operator Inequalities , 100 New York : Academic Press .
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References

Frink , O. 1990 . Amer. Math. Monthly , 97 : 849 – 850 . (Problem E3283).
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Toumasis , C. 1992 . Int. J. Math. Educ. Sci. Technol., , 23 : 359 – 369 .
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Reference

Istratescu , V. I. 1981 . Fixed Point Theory , Dordrecht : D. Reidel .
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