Some Coupled Fixed Point Results on Partial Metric Spaces

In this paper we give some coupled fixed point results for mappings satisfying different contractive conditions on complete partial metric spaces.Comment: To appear in International Journal of Mathematics and Mathematical Science

ROLE OF THE HEAD OF SCHOOL AS A MANAGER IN IMPROVING THE QUALITY OF ISLAMIC RELIGIOUS EDUCATION IN MA FATHUL HUDA SIDOREJO SAYUNG DEMAK

There are 2 main problems in this research, namely, first, the role of the head of school as a promoter in improving the quality of Islamic education with the function, second, the role of the head of school as a promoter in improving the quality of Islamic education with function. This research was conducted at MA Fathul Huda Sidorejo Sayung Demak. This type of research is field research using descriptive qualitative analysis research method, namely the researcher observes and interacts with the head of school, teachers, employees and students in MA Fathul Huda Sidoejo Sayung Demak with interviews and observations and reviews the documentation. The results of this study indicate that the role of the head of school as a manager in improving the quality of Islamic Education with administrative functions that include planning, organization, implementation and supervision can work well based on theoretical basis. The role of the head of school as manager in improving the quality of Islamic Religious Education with an operative function focused on their respective fields such as administration, library, laboratory and student affairs. From the fields already mentioned, there are several fields that are in accordance with the theoretical basis and there are also obstacles or obstacles in its implementation, including: not all employees and teachers master the work in accordance with their fields, lack of teaching staff, facilities and infrastructure

An Integrated Multicriteria and Fuzzy Logic Approach for Municipal Solid Waste Landfill Siting

Landfill site selection should take into account a wide range of alternative and evaluation criteria in order to reduce negative impacts on the environment. This study presents a geographic information systems-based multicriteria site selection of municipal solid waste (MSW) landfill in Ariana Region, Tunisia. The multicriteria decision integrates constraints and factors to select MSW landfill suitability. The methodology is used for ranking the best suitable landfill sites by the integration of fuzzy logic and analytic hierarchy process (AHP). The fuzzy set theory is used to standardize criteria using different fuzzy membership functions while the AHP is used to establish the relative importance of the criteria. The AHP makes pairwise comparisons of relative importance between hierarchy elements assembled by environmental and socio-economic decision criteria. The landfill suitability is accomplished by applying weighted linear combination (WLC) that uses a comparison matrix to aggregate different importance scenarios associated with environmental and socio-economic objectives. Data were assorted into five suitability classes within the study area, i.e., high, suitable, moderate, low and very low suitability areas, which represented 5.4, 0.5, 12.5, 3.9 and 2.5%, of the study area, respectively. Additionally, 75.2% was considered to be completely unsuitable for a landfill site. As a result, two candidate landfill sites are suggested

Generalized Altering Distances and Common Fixed Points in Ordered Metric Spaces

Coincidence point and common fixed point results with the concept of generalized altering distance functions in complete ordered metric spaces are derived. These results generalize the existing fixed point results in the literature. To illustrate our results and to distinguish them from the existing ones, we equip the paper with examples. As an application, we study the existence of a common solution to a system of integral equations

Common fixed points for generalized contractive mappings in cone metric spaces

The purpose of this paper is to establish coincidence point and common fixed point results for four maps satisfying generalized weak contractions in cone metric spaces. Also, an example is given to illustrate our results

Fixed Point Theorems for Various Classes of Cyclic Mappings

We introduce new classes of cyclic mappings and we study the existence and uniqueness of fixed points for such mappings. The presented theorems generalize and improve several existing results in the literature