Egyptian Mathematical SocietyJournal of the Egyptian Mathematical Society1110-256X26320180701SOFT WEAK BAIRE SPACES3954052281010.21608/joems.2018.2729.1028ENA. GhareebDepartment of Mathematics, College of Science, Al-Baha University, Al-Baha, Saudi Arabia.
Department of Mathematics, Faculty of Science, South Valley University, Qena, Egypt.Journal Article20180123It has been noticed that among the dierent elds of theoretical mathematics where soft sets theory is applied ex-<br />tensively, the most of papers are related to topology. In this paper, the concept of soft weak baire spaces, i.e., the soft<br />generalization of the concept of weak baire spaces as dened by Renukadevi and Muthulakshmi [1] has been presented.<br />Finally, the basic properties of such spaces and accordingly the dened continuous soft functions between these spaces<br />have been studied.https://joems.journals.ekb.eg/article_22810_e372a80f53a5f13184fcdc51a4a0308d.pdfEgyptian Mathematical SocietyJournal of the Egyptian Mathematical Society1110-256X26320180701SOME FAMILIES OF MEROMORPHIC p VALENT FUNCTIONS INVOLVINGA NEW OPERATOR DEFINED BY GENERALIZED MITTAG-LEFFLER FUNCTION4064112281110.21608/joems.2018.2884.1043ENM. AoufDepartment of Mathematics, Faculty of Science, Mansoura University, Mansoura 35516, EgyptT. SeoudyDepartment of Mathematics, Faculty of Science, Fayoum University, Fayoum 63514, EgyptJournal Article20180210In this paper, we introduce some classes of meromorphic multivalent functions which are dened by a new<br />linear operator containing the generalized Mittag-Leer function. Using convolution results obtained by Sarkar et al . [1]<br />(see also Mostafa and Aouf [2]), we investigate some properties and inclusion relations for functions in these classes.<br />2010 Mathematics Subject Classication. 30C45, 30C80, 33E12.https://joems.journals.ekb.eg/article_22811_ec3453437152fb144192275571fa9af7.pdfEgyptian Mathematical SocietyJournal of the Egyptian Mathematical Society1110-256X26320180701GENERALIZED TOPOLOGICAL APPROXIMATION SPACES AND THEIR MEDICAL APPLICATIONS4124162314810.21608/joems.2018.2891.1045ENA. SalamaMathematics Department, Faculty of Science, Tanta University, Tanta, Egypt.Journal Article20180210We generalize Pawlak's approximation space to topological approximation spaces using some topological near open<br />sets, such as regular open sets, semi-open sets, pre-open sets, -open sets, -open sets and -open sets and others. The<br />properties of the topological approximations space will be studied. Finally, We applied our results on medical data.https://joems.journals.ekb.eg/article_23148_b594191098a0d8a05f6630f08f095968.pdfEgyptian Mathematical SocietyJournal of the Egyptian Mathematical Society1110-256X26320180701ON GRAPH FOLDING AND MOBILE RADIO FREQUENCY ASSIGNMENT4174222315010.21608/joems.2018.2914.1049ENF. Salama Salamafatma.salama@science.tanta.edu.egH. Rafathesham.abdelmaksoud@science.tanta.edu.egJournal Article20180213In this paper, the definition of a jumping folding of a graph has been introduced. The relations between<br />this type of jumping folding of the graph and its chromatic number will be obtained. Theorems governing these<br />relations have been introduced. Mobile radio frequency assignment has been given as an application.https://joems.journals.ekb.eg/article_23150_042aa1abf177eb5fcb8306ca885afd23.pdfEgyptian Mathematical SocietyJournal of the Egyptian Mathematical Society1110-256X26320180701AUTOMATIC BUILDING ARABIC DOMAIN MORPHOLOGICAL DICTIONARY USING PART OF SPEECH TAGGING4234282315110.21608/joems.2018.2984.1053ENO. El BarbaryMathematics Department, Faculty of Science, Tanta University, EgyptJournal Article20180224Arabic language is still facing some difficulties in automatic processing relating to the richness, morphology,<br />phonetic and lexicon. This paper presents a new strategy for building a morphological field dictionary for Arabic<br />language. Our strategy is divides into two parts. The first, extracts an efficient Field Association FA words for each<br />domain specific. Second, generates the Part Of Speech (POS) tagging for these (FA) word and collect them in one<br />frame. After that, the FA words with its frame collected in alphabetic order. The method of building the automatic<br />morphological field dictionary using a main algorithm is discussed and studied. The advantage of our approach is to<br />build an extended and updated automatic Arabic morphological field dictionary. The average of the accuracy measures<br />(F measures) of the experimental results is up to 76 %.https://joems.journals.ekb.eg/article_23151_bed36769e738b7894b07aed60348c271.pdfEgyptian Mathematical SocietyJournal of the Egyptian Mathematical Society1110-256X26320180701SOME FAMILIES OF ONE AND TWO-STEP ITERATIVE METHODS FOR APPROXIMATING MULTIPLE ROOTS OF NONLINEAR EQUATIONS4294412315210.21608/joems.2018.3054.1055ENMohamed Bahgatmsmbahgat66@hotmail.comMuDa Nasrmofeda.nasr@yahoo.comJournal Article20180301This paper presents a new family of two-step iterative methods as a new modication to the Halley's method. Also a<br />family of one-step iterative methods is generated using the variational iteration technique to approximate the multiple roots<br />of nonlinear equations with unknown multiplicity . The order of convergence is analyzed and proved that, some of the<br />proposed methods reach the optimal order of convergence, which is higher than that of Newton0s method. The outcomes<br />for some numerical examples are given to approve the eciency of the presented methods compared with some other known<br />methods. Mathematics Subject Classication: 34A45, 34A45, 37N30.https://joems.journals.ekb.eg/article_23152_5f214e52b5148ccc63e1a2683e60752d.pdfEgyptian Mathematical SocietyJournal of the Egyptian Mathematical Society1110-256X26320180701A NEW TRIPLE OPTIMALITY CRITERION CDKL4424492315310.21608/joems.2018.3117.1058ENM. Seyamm.seyam@science.tanta.edu.eg
Faculty of Science, Tanta UniversityJournal Article20180307In this paper, three optimality criteria will be compounded to give a new criterion, namely,<br />CDKL-optimality for parameter estimation, estimating the area under curve and model<br />discrimination for any kind of regression models, with homoscedastic or herteroscedastic errors,<br />which may be Gaussian or not. CDKL-compound criterion is proposed for copula models.https://joems.journals.ekb.eg/article_23153_eb030aad0f5377f44cc8a51644507c32.pdfEgyptian Mathematical SocietyJournal of the Egyptian Mathematical Society1110-256X26320180701REDUCTION OF KNOWLEDGE VIA MINIMAL APPROXIMATION SPACE AND GRAPHS4504572315510.21608/joems.2018.3241.1062ENM. El-SharkasyDepartment of Mathematics, Faculty of Science, Tanta University, Tanta, Egypt.Journal Article20180318In this paper, we introduce a simple undirected graph based on a binary relation by using the<br />notion of right neighborhood and minimal approximation space. Also, we investigate the lower<br />approximation and the upper approximation of a subgraph to compute the rough subgraph. Finally, we<br />will make a reduction of an information system and compute the core of knowledge by using a minimal<br />approximation space and a graph theory.https://joems.journals.ekb.eg/article_23155_0ba822f5d7349ced126ad3b36bb38a22.pdfEgyptian Mathematical SocietyJournal of the Egyptian Mathematical Society1110-256X26320180701New Algorithm for Chromatic Number of Graphs and their Applications4584682315610.21608/joems.2018.3353.1076ENH. RafatMathematics Department, Faculty of Science, Tanta University, Tanta, EgyptJournal Article20180318In this paper, we have designed a new algorithm for calculating the exact value of the chromatic<br />number of a graph and dubbed it as R- coloring algorithm. Using this R- coloring algorithm, we have proved<br />some results. We have discussed some application in different fields of our life by using this new algorithm.https://joems.journals.ekb.eg/article_23156_01844b4ce0de3766907196653f28aaab.pdfEgyptian Mathematical SocietyJournal of the Egyptian Mathematical Society1110-256X26320180701EXISTENCE OF POSITIVE SOLUTIONS FOR A SINGULAR FRACTIONAL NONLINEAR DIFFERENTIAL EQUATION WITH FRACTIONAL INTEGRAL BOUNDARY CONDITIONS4694822315710.21608/joems.2018.3796.1102ENF. GaafarFaculty of Science, Damanhour University, Damanhour, Egypt
E-mail: fatmagaafar2@yahoo.comJournal Article20180510In this paper, we investigate the appropriate conditions for the presence of positive solutions for a singular fractional<br />dierential equation (SFDE) with fractional integral boundary conditions (FIBCs). Our nonlinear function may has a<br />singularity in its dependent variable. Our investigation is based on the xed point theorem of Krasnosel'skii on a cone<br />and via regularization and sequential techniques (RASTs).https://joems.journals.ekb.eg/article_23157_259191ff544152a03480d85c7f9475d9.pdfEgyptian Mathematical SocietyJournal of the Egyptian Mathematical Society1110-256X26320180701ON NRBUL CLASS OF LIFE DISTRIBUTIONS4834902315810.21608/joems.2018.2649.1035ENM. MahmoudDepartment of Mathematics, Faculty of Science, Al-Azhar University,
Nasr City (11884), Cairo, Egypt.E. HassanDepartment of Mathematics, Faculty of Science, Zagazig University, Cairo, Egypt.A. GadallahDepartment of Basic Sciences, Thebes Higher Institute for Engineering,
Thebes Academy, Cairo, EgyptJournal Article20180129In this paper, moment inequalities for a new class of life distributions called new renewal better than used in Laplace<br />transform order (NRBUL) are proposed. For the new class NRBUL, the preservation under convolution and mixture are<br />studied. A new test statistic for testing exponentiality versus NRBUL is investigated based on these moment inequalities.<br />Pitman asymptotic eciencies of the test are proposed. The critical values of this test are tabulated. Some examples for<br />censored and non-censored data are applied to the new test. Finally a new test for censored data is proposedhttps://joems.journals.ekb.eg/article_23158_cb365d71d95de4f0c483cb90aea74759.pdfEgyptian Mathematical SocietyJournal of the Egyptian Mathematical Society1110-256X26320180701PREDICTION UNDER BURR-XII DISTRIBUTION BASED ON GENERALIZED TYPE-II PROGRESSIVE HYBRID CENSORING SCHEME49150823160ENSaieed AteyaDepartment of Mathematics, Faculty of Science Assiut University, Egypt &
bMathematics and statistics Department, Faculty of Science Taif University, Saudi ArabiaHeba MohammedDepartment of Mathematics, Faculty of Science, New Valley Branch
Assiut University, Egypt
& Mathematical Science, Faculty of Science, Princess Nourah bint Abdularhman University
Riyadh, Saudi ArabiaJournal Article20180329In this paper, the prediction problem of future failure times from Burr-XII distribution based on generalized type-<br />II progressive hybrid censoring scheme (GTIIPHCS) is considered by using maximum likelihood (ML) and (Bayes)<br />methods for one and two-sample prediction schemes. Point and interval predictors, denoted by PP0s and IP0s, of future<br />failure times are computed based on simulated and real data. A comparative study is carried out between the two methods<br />using the mean squared errors (MSE0s) and the relative errors (RE0s) criteria.https://joems.journals.ekb.eg/article_23160_dc73ab6d5f66dcb2d6e288272cc3774c.pdfEgyptian Mathematical SocietyJournal of the Egyptian Mathematical Society1110-256X26320180701EFFICIENT GENERATION OF SHORTEST ADDITION-MULTIPLICATION CHAINS5095212316110.21608/joems.2018.2691.1052ENHatem BahigDepartment of Mathematics, Faculty of Science, Ain Shams University, Cairo, Egypt0000-0002-8137-7939A. MahranDepartment of Mathematics, Faculty of Science, Ain Shams University, Cairo, EgyptJournal Article20180326The aim of this paper is to generalize some results on addition chains to addition-multiplication chains. The pa-<br />per concerns with generating shortest addition-multiplication chains. It rst presents two methods for generating short<br />addition-multiplication chains. Second, it presents an algorithm for generating a shortest addition-multiplication chain.<br />Then it proposes three main improvements for generating a shortest addition-multiplication chain. The practical results<br />show that the proposed improvements reduce, on the average, the running time and storage of the algorithm by about<br />95% and 35% respectively for data range 12 20 bits. Similar practical results are obtained for generating all shortest<br />addition-multiplication chains. Finally, the paper discusses how to apply the algorithm to obtain some results that have<br />been uncovered previously.https://joems.journals.ekb.eg/article_23161_03084e92031c56cdd58800293ee2fdee.pdfEgyptian Mathematical SocietyJournal of the Egyptian Mathematical Society1110-256X26320180701CHARACTERIZATION OF DISTRIBUTIONS BY EQUALITIES OF TWO GENERALIZED OR DUAL GENERALIZED ORDER STATISTICS5225282316310.21608/JOMES.2018.2740.1032ENMagdy El-AdllMathematics Department, Faculty of Science, Helwan University, Ain Helwan, Cairo, Egypt.0000-0001-8117-1212Journal Article20180122In this paper, characterization of probability distributions by equalities of two dierent generalized order statistics<br />(gos) or dual generalized order statistics (dgos) is considered. It is proved that, if two dierent gos or dgos via the same<br />distribution function (df) F are equal, then F has at most two growth pointshttps://joems.journals.ekb.eg/article_23163_8bd00aa106682bacd2f785c32e92e4a3.pdf