Прегледај по Аутор "Mišić, Vesna"

Сада се приказује 1 - 5 од 5
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    A Common Fixed Point Theorem for Nonlinear Quasi- Contractions on b-Metric Spaces with Application in Integral Equations
    (Hindawi, 2020) Mitrović, Zoran D.; Aranđelović, Ivan D.; Mišić, Vesna; Dinmohammadi, Abdollah; Parvaneh, Vahid
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    A New Model for Defining the Criteria of Service Quality in Rail Transport: The Full Consistency Method Based on a Rough Power Heronian Aggregator
    (MDPI, 2019) Đorđević, Dragan; Stojić, Gordan; Stević, Željko; Pamučar, Dragan; Vulević, Ana; Mišić, Vesna
    The European standard on transport logistics and services in public passenger transport EN 13816 is based on a relationship between the perception of users and transport carriers throughout the groups of criteria taken as a basis for observation in this paper. The constant development and improvement of services in order to achieve sustainability of passenger transport is an imperative on the one hand and a challenge on the other. This is highly evident in persons with disabilities who are faced with many physical and social barriers related to access to rail transport. In this paper, a new model for the selection of criteria for the quality of passenger service in rail transport, from the perspective of persons with disabilities as the main category of passengers, has been created. The survey has covered 168 criteria classified in several groups and the entire territory of Serbia. In order to select the most important criteria, a new model that implies the integration of Full Consistency Method and a Rough Power Heronian aggregator has been developed. The development of a new aggregator enables more accurate decision-making in the process of group decision-making. The results obtained in this paper show that the most important criteria according to importance are Accessibility, Availability, Security, Time, Customer care, Information, Comfort, Environmental impact. Based on the criteria obtained for the service quality of rail transport for persons with disabilities, railway carriers will be able to change and improve the existing services, content, characteristics, equipment of railway stations and vehicles.
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    Contractive Linear Operators and their Applications in F - Cone Metric Fixed Point Theory
    (Hikari Ltd., 2010) Aranđelović, Ivan D.; Mišić, Vesna
    In this paper we introduce the notion of a F - cone metric space. Furthermore we define and study contractive bounded linear operators on complete F - normed space. We also present some fixed point results on F - cone metric space, with operator’s contractive condition which generalizes some results from [6] and [11].
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    On d*-Complete Topological Spaces and Related Fixed Point Results
    (MDPI, 2020) Mitrović, Zoran D.; Aranđelović, Ivan; Mišić, Vesna; Aydi, Hassen; Samet, Bessem
    In this paper, we introduce the concept of d -complete topological spaces, which include earlier defined classes of complete metric spaces and quasi b-metric spaces. Further, we prove some fixed point results for mappings defined on d -complete topological spaces, generalizing earlier results of Tasković, Ćirić and Prešić, Prešić, Bryant,Marjanović, Yen, Caccioppoli, Reich and Bianchini.
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    Some Fixed Points Results in b-Metric and Quasi b-Metric Spaces
    (Hindawi, 2022) George, Reny; Aranđelović, Ivan D.; Mišić, Vesna; Mitrović, Zoran D.
    We present a fixed point result in quasi b-metric spaces. Our result generalizes recent fixed point results obtained by Aleksić et al., Dung and Hang, Jovanović et al., Sarwar, and Rahman and classical results obtained by Hardy, Rogers, and Ćirić. Also, we obtain a common fixed point result in -metric spaces. As a special case, we get a result of Ćirić and Wong.