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References
- ↑ Walter, Wolfgang (1970). Differential and Integral Inequalities. Berlin, Heidelberg: Springer Berlin Heidelberg. doi:10.1007/978-3-642-86405-6. ISBN 978-3-642-86407-0.
- ↑ Lakshmikantham, Vangipuram (1969). Differential and integral inequalities: theory and applications. Mathematics in science and engineering. Srinivasa Leela. New York: Academic Press. ISBN 978-0-08-095563-6.
- ↑ Aronson, D. G.; Weinberger, H. F. (1975). Goldstein, Jerome A. (ed.). "Nonlinear diffusion in population genetics, combustion, and nerve pulse propagation". Partial Differential Equations and Related Topics. Berlin, Heidelberg: Springer: 5–49. doi:10.1007/BFb0070595. ISBN 978-3-540-37440-4.
- ↑ Jeff Cheeger and David Gregory Ebin: Comparison theorems in Riemannian Geometry, North Holland 1975.
- ↑ M. Berger, "An Extension of Rauch's Metric Comparison Theorem and some Applications", Illinois J. Math., vol. 6 (1962) 700–712
- ↑ Weisstein, Eric W. "Berger-Kazdan Comparison Theorem". MathWorld .
- ↑ F.W. Warner, "Extensions of the Rauch Comparison Theorem to Submanifolds" (Trans. Amer. Math. Soc., vol. 122, 1966, pp. 341–356
- ↑ R.L. Bishop & R. Crittenden, Geometry of manifolds
