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Fixed point results for generalized contractions in gauge spaces and applications
Author(s):
M.
Frigon
Journal:
Proc. Amer. Math. Soc.
128
(2000),
2957-2965.
MSC (1991):
Primary 47H10, 47N20
Posted:
June 6, 2000
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Abstract:
In this paper, we present fixed point results for generalized contractions defined on a complete gauge space . Also, we consider families of generalized contractions where is closed and can have empty interior. We give conditions under which the existence of a fixed point for some imply the existence of a fixed point for every . Finally, we apply those results to infinite systems of first order nonlinear differential equations and to integral equations on the real line.
References:
-
- 1.
- G. L. CAIN JR. AND M. Z. NASHED, Fixed points and stability for a sum of two operators in locally convex spaces, Pacific J. Math. 39 (1971), 581-592. MR 48:968
- 2.
- G. DORE, Sul problema di Cauchy per equazioni differenziali ordinarie in spazi localmente convessi, Rend. Mat. Appl. (7) 1 (1981), 237-247.
- 3.
- J. DUGUNDJI. Topology, Wm. C. Brown Publ., Dubuque, 1989.
- 4.
- M. FRIGON AND A. GRANAS, Résultats du type Leray-Schauder pour des contractions multivoques, Topol. Methods Nonlinear Anal. 4 (1994), 197-208. MR 95m:47110
- 5.
- M. FRIGON AND A. GRANAS, Résultats de type Leray-Schauder pour des contractions sur des espaces de Fréchet, Ann. Sci. Math. Québec 22 (1998), 161-168. CMP 99:09
- 6.
- G. HERZOG, On ordinary linear differential equations in
, Demonstratio Math. 28 (1995), 383-398. - 7.
- G. HERZOG, On Lipschitz conditions for ordinary differential equations in Fréchet spaces, Czechoslovak Math. J. 48 (1998), 95-103. MR 99c:34134
- 8.
- R. J. KNILL, Fixed points of uniform contractions, J. Math. Anal. Appl. 12 (1965), 449-455. MR 33:709
- 9.
- R. LEMMERT AND ¨A. WECKBACH, Charakterisierung zeilenendlicher Matrizen mit abzählbarem Spektrum, Math. Z. 188 (1984), 119-124. MR 87h:47011
- 10.
- R. LEMMERT, On ordinary differential equations in locally convex spaces, Nonlinear Anal. 10 (1986), 1385-1390. MR 88c:34084
- 11.
- K. MOSZYNSKI AND A. POKRZYWA, Sur les systèmes infinis d'équations différentielles ordinaires dans certains espaces de Fréchet, Dissertationes Math. (Rozprawy Mat.) 115 (1974), 1-32. MR 52:11241
- 12.
- S. B. NADLER JR., Multi-valued contraction mappings, Pacific J. Math. 30 (1969), 415-487. MR 40:8035
- 13.
- E. TARAFDAR, An approach to fixed-point theorems on uniform spaces, Trans. Amer. Math. Soc. 191 (1974), 209-225. MR 50:14725
- 14.
- W. W. TAYLOR, Fixed points theorems for nonexpansive mappings in linear topological spaces, J. Math. Anal. Appl. 40 (1972), 164-173. MR 48:974
- 15.
- B. N. SADOVSK
, Measures of noncompactness and condensing operators, Probl. Mat. Anal. 2 (1968), 88-119 (Russian). MR 46:740 - 16.
- B. N. SADOVSK
, Limit compact and condensing operators, Uspekhi Mat. Nauk 27 (1972), 81-146 (Russian). MR 55:1161 - 17.
- T. SENGADIR, D. V. PAI, AND A. K. PANI, A Leray-Schauder type theorem and applications to boundary value problems for neutral equations, Nonlinear Anal. 28 (1997), 701-719. MR 98b:47072
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Additional Information:
M.
Frigon
Affiliation:
Département de Mathématiques et Statistique, Université de Montréal, C. P. 6128, Succ. Centre-ville, Montréal, Canada H3C 3J7
Email:
frigon@dms.umontreal.ca
DOI:
10.1090/S0002-9939-00-05838-X
PII:
S 0002-9939(00)05838-X
Received by editor(s):
November 19, 1998
Posted:
June 6, 2000
Additional Notes:
This work was partially supported by CRSNG Canada.
Communicated by:
David R. Larson
Copyright of article:
Copyright
2000,
American Mathematical Society
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