Results 1 to 10 of about 22 (19)
Notes on Knaster-Tarski Theorem versus Monotone Nonexpansive Mappings [PDF]
Moroccan Journal of Pure and Applied Analysis, 2018 The purpose of this note is to discuss the recent paper of Espínola and Wiśnicki about the fixed point theory of monotone nonexpansive mappings. In their work, it is claimed that most of the fixed point results of this class of mappings boil down to the ...
Khamsi Mohamed Amine
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Common Fixed-Point Theorems in Modular Function Spaces Endowed with Reflexive Digraph
International Journal of Mathematics and Mathematical Sciences, 2020 The purpose of this work is to extend the Knaster–Tarski fixed-point theorem to the wider field of reflexive digraph. We give also a DeMarr-type common fixed-point theorem in this context.
Jaauad Jeddi +2 more
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Advances in Difference Equations, 2021 In this paper, we study the oscillatory and asymptotic behavior of a class of first-order neutral delay impulsive differential systems and establish some new sufficient conditions for oscillation and sufficient and necessary conditions for the asymptotic
Shyam Sundar Santra +3 more
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The Knaster–Tarski theorem versus monotone nonexpansive mappings [PDF]
Bulletin of the Polish Academy of Sciences Mathematics, 2018 Let $X$ be a partially ordered set with the property that each family of order intervals of the form $[a,b],[a,\rightarrow )$ with the finite intersection property has a nonempty intersection. We show that every directed subset of $X$ has a supremum.
Espínola, Rafael, Wiśnicki, Andrzej
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A soft version of the Knaster–Tarski fixed point theorem with applications [PDF]
Journal of Fixed Point Theory and Applications, 2017 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Leyew, Bahru Tsegaye, Abbas, Mujahid
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Network valuation in financial systems
Mathematical Finance, Volume 30, Issue 4, Page 1181-1204, October 2020., 2020 Abstract We introduce a general model for the balance‐sheet consistent valuation of interbank claims within an interconnected financial system. Our model represents an extension of clearing models of interdependent liabilities to account for the presence of uncertainty on banks' external assets. At the same time, it also provides a natural extension of
Paolo Barucca +6 more
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Mathematics, 2017 In the present article, we introduce the new concept of start point in a directed graph and provide the characterizations required for a directed graph to have a start point.
Murchana Neog, Pradip Debnath
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Multiplex network analysis of the UK over‐the‐counter derivatives market
International Journal of Finance &Economics, Volume 24, Issue 4, Page 1520-1544, October 2019., 2019 Abstract In this paper, we analyse the network of exposures constructed by using the UK trade repository data for three different categories of contracts: interest rate, credit, and foreign exchange derivatives. We study how liquidity shocks related to variation margins propagate across the network and translate into payment deficiencies across ...
Marco Bardoscia +2 more
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Span of control, transaction costs, and the structure of production chains
Theoretical Economics, Volume 13, Issue 2, Page 729-760, May 2018., 2018 This paper builds coordination costs, transaction costs, and other aspects of the theory of the firm into a production chain model with an infinite number of ex ante identical producers. The equilibrium determines prices, allocations of productive tasks across firms, firm sizes, and the number of active firms. These prices and allocations match several
Tomoo Kikuchi +2 more
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End Point Results in Metric Spaces Endowed with a Graph
Journal of Mathematics, Volume 2016, Issue 1, 2016., 2016 We introduce the notion of end point of multivalued mappings in the setting of metric space endowed with a graph and prove some existence results in this context. The mappings are assumed to satisfy certain generalized multivalued almost G‐contractive type inequalities.
Binayak S. Choudhury +3 more
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