Some results for one class of discontinuous operators with fixed points.
Morales, R., Rojas, E. (2007)
Acta Mathematica Universitatis Comenianae. New Series
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Morales, R., Rojas, E. (2007)
Acta Mathematica Universitatis Comenianae. New Series
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Parfenov, A. I. (2003)
Sibirskij Matematicheskij Zhurnal
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Cherednichenko, V.G. (2002)
Sibirskij Matematicheskij Zhurnal
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John W. Lee, Donal O'Regan (1993)
Commentationes Mathematicae Universitatis Carolinae
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This paper presents existence results for initial and boundary value problems for nonlinear differential equations in Banach spaces.
Murzina, V.F. (2008)
Sibirskij Matematicheskij Zhurnal
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Alimohammady, M., Shahmari, A. (2009)
The Journal of Nonlinear Sciences and its Applications
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Gerd Herzog (1998)
Colloquium Mathematicae
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We prove that the initial value problem x’(t) = f(t,x(t)), is uniquely solvable in certain ordered Banach spaces if f is quasimonotone increasing with respect to x and f satisfies a one-sided Lipschitz condition with respect to a certain convex functional.
Sababheh, M., Khalil, R. (2009)
The Journal of Nonlinear Sciences and its Applications
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Chueshev, A.V. (2002)
Sibirskij Matematicheskij Zhurnal
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F. Azarpanah, O. Karamzadeh, A. Rezai Aliabad (1999)
Fundamenta Mathematicae
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An ideal I in a commutative ring R is called a z°-ideal if I consists of zero divisors and for each a ∈ I the intersection of all minimal prime ideals containing a is contained in I. We characterize topological spaces X for which z-ideals and z°-ideals coincide in , or equivalently, the sum of any two ideals consisting entirely of zero divisors consists entirely of zero divisors. Basically disconnected spaces, extremally disconnected and P-spaces are characterized in terms of z°-ideals....
Maksa, Gyula, Nizsalóczki, Enikő (2006)
Acta Mathematica Academiae Paedagogicae Nyí regyháziensis. New Series [electronic only]
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