References
- Amann , H. 1976 . Nonlinear eigenvalue problems having precisely two solutions . Math. Z , 150 : 27 – 37 .
- Amann , H. 1976 . Fixed point equations and nonlinear eigenvalue problems in ordered Banach spaces . Siam Rev , 18 : 620 – 709 .
- Amann , H. 1974 . Multiple positive fixed points of asymptotically linear maps . J. Fund. Anal , 17 : 174 – 213 .
- Ambrosetti , A. 1978 . On the exact number of positive solutions of convex nonlinear problems . Boll. Un. Mat. Ital , 15 A : 610 – 615 .
- Derailing , K. 1974 . Nichtlineare Gleichungen und Abbildungsgrade , New York : Heidelberg .
- Frank-Kamenetskii , D.A. 1969 . Diffusion and Heat Transfer in Chemical Kinetics New York
- Krein , M.G. and Rutman , M.A. 1962 . Linear operators leaving invariant a cone in a Banach space . Amer. Math. Soc. Transl , 10 : 199 – 325 .
- Protter , M.H. and Weinberger , H.F. 1976 . Maximum Principles in Differential Equations , New York : Englewood Cliffs .
- Voss , H. and Werner , B. 1979 . Ein Quotienteneinschiiessungssatz fiir kntischen Parameter nichtlinearer Randwertaufgaben . ISNM , 49 : 147 – 158 .
- Weinberger , H.F. 1974 . Variational methods for eigenvalue approximation . Regional Conference Series in Applied Mathematics . 1974 .