Results 1 to 10 of about 6,544 (137)
Systems of functional-differential equations with maxima, of mixed type [PDF]
Electronic Journal of Qualitative Theory of Differential Equations, 2014 In this paper we study some properties of the solutions of a second order system of functional-differential equations with maxima, of mixed type, with ``boundary" conditions. We use Perov's fixed point theorem and the weakly Picard operator technique.
Diana Otrocol
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Relevant Classes of Weakly Picard Operators [PDF]
Annals of the West University of Timisoara: Mathematics and Computer Science, 2016 In this paper we consider the following problems:
Rus Ioan A.
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Some Properties of Solutions of a Functional-Differential Equation of Second Order with Delay [PDF]
The Scientific World Journal, 2014 Existence, uniqueness, data dependence (monotony, continuity, and differentiability with respect to parameter), and Ulam-Hyers stability results for the solutions of a system of functional-differential equations with delays are proved.
Veronica Ana Ilea, Diana Otrocol
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Weakly Picard pairs of some multivalued operators [PDF]
Mathematical Communications, 2003 The purpose of this paper is to present a partial answer to the following problem: Let (X,d) be a metric space and $T_1,T_2:Xto P(X)$ two multivalued operators.
A. Sîntărian
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A new perspective for multivalued weakly Picard operators [PDF]
Publications de l'Institut Mathematique, 2017 This research contains some recent developments about multivalued weakly Picard operators on complete metric spaces. In addition, taking into account both multivalued ?-contraction and almost contraction on complete metric spaces, we present a new perspective for multivalued weakly Picard operators.
Durmaz, Gonca, Altun, Ishak
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Frum-Ketkov operators which are weakly Picard [PDF]
Carpathian Journal of Mathematics, 2020 In this paper, we will give sufficient conditions ensuring that a Frum-Ketkov operator is weakly Picard. Some generalized Frum-Ketkov operators are also studied.
Petruşel, Adrian +2 more
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The influence of theta-function to the class of MWP operators [PDF]
Mathematica Moravica, 2020 In this work, taking into account the theta-function, we present a general class of multivalued weakly Picard operators on complete metric space. We also provide an example showing that it includes some earlier classes as properly.
Altun Ishak, Durmaz Gonca
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Recent developments about multivalued weakly Picard operators [PDF]
Bulletin of the Belgian Mathematical Society - Simon Stevin, 2015 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Minak, Gülhan +2 more
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On a general class of weakly Picard operators [PDF]
Miskolc Mathematical Notes, 2015 In this paper we show that on complete metric spaces the class of weakly Picard operators contains some operators which are more general than the class of almost contractions.
Altun, Ishak +2 more
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On multivalued weakly Picard operators in partial Hausdorff metric spaces [PDF]
Fixed Point Theory and Applications, 2015 AbstractWe discuss multivalued weakly Picard operators on partial Hausdorff metric spaces. First, we obtain Kikkawa-Suzuki type fixed point theorems for a new type of generalized contractive conditions. Then, we prove data dependence of a fixed points set theorem.
Jleli, Mohamed +3 more
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