References
A. Alexiewicz andW. Orlicz, Some remarks on the existence and uniquess of solutions of the hyperbolic equation\(\frac{{\partial ^2 }}{{\partial x\partial y}}z = f(x,y,z,\frac{\partial }{{\partial x}}z,\frac{\partial }{{\partial y}}z),\) Studia Math.15 (1956), 201–215.
L. P. Belluce andW. A. Kirk,Fixed-Point theorems for certain classes of nonexpansive mappings, Proc. Amer. Math. Soc.20 (1969, 141–146.
F. E. Browder,Convergence of approximantes to fixed points of nonexpansive nonlinear mappings in Banach spaces, Arch. Rat. Mech. Anal.24 (1967), 82–90.
F. Cafiero,Sul fenomeno di Peano nelle equazioni differenziali ordinarie del primo ordine, Rend. Accad. Sci. Fis. Mat. Napoli17 (1950), 51–61, and II, 123–126.
F. Cafiero,Sulla classe delle equazioni differenziali ordinarie del primo ordine, i cui punti dí Peano constituiscono um insieme di misura lebesguiana nulla, Rend. Accad. Sci. Fis. Mat. Napoli17 (1950), 127–137.
G. Darbo,Punti uniti in transformazioni a codominio non Compatto, Rend. Sem. Mat. Univ. Padova24 (1955), 84–92.
J. Dugundji, Topology, Allyn and Bacon, Boston, 1966.
A. Lasota andJ. A. Yorke,The generic property of existence of solutions of differential equations in Banach space, J. Diff. Eqs.13 (1973), 1–12.
W. Orlicz,Zur Theorie der Differentialgleichung y′=f(x,y), Bull. Acad. Polon. Sci. (1932), 221–228.
W. V. Petryshyn,Structure of the fixed points sets of k-set-contractions, Arch. Rat. Mech. Anal.40 (1971), 312–328.
Sadovskii,Limit-compact and condensing operators, Russ. Math. Surveys (1972).
G. Vidossich,Approximation of fixed points of compact mappings, J. Math. Anal. Appl.34 (1971), 86–89.
G. Vidossich,Applications of Topology to Analysis: On the topological properties of the set of fixed points of nonlinear operators, Confer. Sem. Mat. Bari126 (1971), 1–62.
G. Vidossich,Existence, comparison and asymptotic behavior of solutions of ordinary differential equations in finite and infinite dimensional Banach spaces, submited.
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Parts of this research were made while the author was at Scuola Normale Superiore, Pisa, Italy, and the University of Cape Town, Rondebosch, South Africa.
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Vidossich, G. Existence, uniqueness and approximation of fixed points as a generic property. Bol. Soc. Bras. Mat 5, 17–29 (1974). https://doi.org/10.1007/BF02584769
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DOI: https://doi.org/10.1007/BF02584769