CAUCHY
http://ejournal.uin-malang.ac.id/index.php/Math
<h3>CAUCHY - Jurnal Matematika Murni dan Aplikasi</h3><p><span lang="id"><span class="hps"><strong>p-ISSN: <a href="http://u.lipi.go.id/1255061534" target="_blank">2086-0382</a> | e-ISSN: <a href="http://u.lipi.go.id/1447468580" target="_blank">2477-3344</a></strong></span></span><strong></strong></p><p><strong><span lang="id"><span class="hps"><br /></span></span></strong><span id="result_box" lang="en"> <strong>CAUCHY</strong> <span>is a</span> <span>mathematical journal</span> <span>published</span> <span>twice a year</span> <span>in May</span> <span>and</span> <span>November</span> <span>by</span> <span>the Mathematics</span> Department, F<span>aculty of</span> <span>Science</span> <span>and</span> T<span>echnology, </span><span>Universitas Islam Negeri Maulana Malik Ibrahim Malang<br /></span></span></p><p><span lang="en">We welcome authors for original articles (research), review articles, interesting case reports, special articles illustrations that focus on the <strong>Pure and Applied <strong>Mathematics.</strong></strong></span></p><p>Subjects suitable for publication include, <strong>but are not limited</strong> <strong>to</strong>, the following fields of:</p><ul><li>Fuzzy Systems and its Applications</li><li>Geometry Theories and its Applications</li><li>Graph Theories and its Applications</li><li>Real Analysis and its Applications </li><li>Operation Research and its Applications</li><li>Statistical Theories and its Applications</li><li>Dinamical Systems and its Applications</li><li>Mathematics Modeling and its Applications</li><li>Discrete Mathematics and its Applications</li><li>Computer Mathematics and its Applications</li><li>Mathematics Actuaria and its Applications</li></ul><p><span lang="en"><span>Our journal is indexed on DOAJ; Indonesian Scientific Journal Database (ISJD); WorldCat; OneSearch; Google Scholar.</span></span></p><p><span lang="en"><span><strong>Journal History</strong><br />CAUCHY: Jurnal Matematika Murni dan Aplikasi has several changes and updates in its history as follows: 1). On 2009-2012, the cover color was changed from yellow to purple; 2). On 2013-2015, it used two-column system for the layout; 3). From 2016, it uses one-column layout and each article submitted to CAUCHY has to be written in English.</span></span></p><strong><span lang="en"><span id="result_box" lang="en"><span id="result_box" lang="en"><span> <a href="http://s1153.photobucket.com/user/joehari1/media/new1.gif.html" target="_blank"><img src="http://i1153.photobucket.com/albums/p503/joehari1/new1.gif" alt=" photo new1.gif" border="0" /></a> </span></span></span><span id="result_box" lang="en"><span id="result_box" lang="en"><span>Starting from Vol</span><span>.</span> <span>4 No.</span> <span>2</span> <span>(2016)</span> <span>Cauchy</span> <span>use a new layout template</span></span><br /></span></span></strong><p>Registration and article submission guidelines can be downloaded <a href="https://goo.gl/crrzlC" target="_blank">here</a>.</p><p><span lang="id"><span class="hps"><br /></span></span></p>en-US<p>Authors who publish with this journal agree to the following terms:</p><ol><li>Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a <a href="http://creativecommons.org/licenses/by-nc/4.0">Creative Commons Attribution License</a> that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.</li><li>Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.</li><li>Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See <a href="http://opcit.eprints.org/oacitation-biblio.html" target="_new">The Effect of Open Access</a>).</li></ol>cauchy@uin-malang.ac.id (Juhari, M.Si)cauchy@uin-malang.ac.id (Juhari, M.Si)Mon, 21 May 2018 05:36:28 +0700OJS 2.4.7.0http://blogs.law.harvard.edu/tech/rss60Front - Matter
http://ejournal.uin-malang.ac.id/index.php/Math/article/view/5064
Front Matter
Copyright (c) 2018 CAUCHY
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http://ejournal.uin-malang.ac.id/index.php/Math/article/view/5064Preface
http://ejournal.uin-malang.ac.id/index.php/Math/article/view/5065
Preface Preface
Copyright (c) 2018 CAUCHY
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http://ejournal.uin-malang.ac.id/index.php/Math/article/view/5065Thu, 31 May 2018 00:00:00 +0700Back - Matter
http://ejournal.uin-malang.ac.id/index.php/Math/article/view/5066
Back Matter
Copyright (c) 2018 CAUCHY
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http://ejournal.uin-malang.ac.id/index.php/Math/article/view/5066Thu, 31 May 2018 00:00:00 +0700A Discrete Numerical Scheme of Modified Leslie-Gower With Harvesting Model
http://ejournal.uin-malang.ac.id/index.php/Math/article/view/4716
Recently, exploitation of biological resources and the harvesting of two populations or more are widely practiced, such as fishery or foresty. The simplest way to describe the interaction of two species is by using predator prey model, that is one species feeds on another. The Leslie-Gower predator prey model has been studied in many works. In this paper, we use Euler method to discretisize the modified Leslie-Gower with harvesting model. The model consists of two simultanious predator prey equations. We show numerically that this discrete numerical scheme model is dynamically consistent with its continuous model only for relatively small step-size. By using computer simulation software, we show that equlibrium points can be stable, saddles, and unstable. It is shown that the numerical simulations not only illustrate the results, but also show the rich dynamics behaviors of the discrete system.Riski Nur Istiqomah Dinnullah, Trija Fayeldi
Copyright (c) 2018 CAUCHY
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http://ejournal.uin-malang.ac.id/index.php/Math/article/view/4716Mon, 21 May 2018 05:36:22 +0700Comparison of Inverse Distance Weighted and Natural Neighbor Interpolation Method at Air Temperature Data in Malang Region
http://ejournal.uin-malang.ac.id/index.php/Math/article/view/4722
The purpose of this study was to compare the results of Inverse Distance Weighted (IDW) and Natural Neighbor interpolation methods for spatial data of air temperature in the Malang Region. Interpolation is one way to determine a point of events from several points around the known value. Spatial interpolation can be used to estimate an area that does not have a data record using the value of its known surroundings. 38 points observation air temperature of Malang Region in 2016 is used as a sample point to interpolate the surrounding air temperature. Obtained optimum parameter power value is 2 for IDW interpolation method. The RMSE comparison results show that IDW method is better to be used than the Natural Neighbor Interpolation method with the RMSE values of 1,2292 for the IDW method and 1,6173 for the NN method.Jaka Pratama Musashi, Henny Pramoedyo, Rahma Fitriani
Copyright (c) 2018 CAUCHY
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http://ejournal.uin-malang.ac.id/index.php/Math/article/view/4722Mon, 21 May 2018 05:36:24 +0700Fitting The First Birth Interval in Indonesia Using Weibull Proportional Hazards Model
http://ejournal.uin-malang.ac.id/index.php/Math/article/view/4060
<p class="Abstract">The first birth interval is one of the indicators of women’s fertility rate. Because in most cases the first birth interval contains censored observations, the only appropriate statistical method to handle such data is survival analysis. The main objective of this study is to analyze several socioeconomic and demographic factors that affect the first birth interval in Indonesia using the univariate and multivariate survival analysis, that is Kaplan-Meier method and Cox regression model, respectively. The sample is obtained from 2012 Indonesian Demographic and Health Survey (IDHS) and consists of 28242 ever married women aged 15-49 at the time of interview. The results show that age at the first birth, women's educational level, husband’s educational level, contraceptive knowledge, wealth index, and employment status are the significant factors affecting the first birth interval in Indonesia.</p>Alfensi Faruk, Endro Setyo Cahyono, Ning Eliyati
Copyright (c) 2018 CAUCHY - JURNAL MATEMATIKA MURNI DAN APLIKASI
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http://ejournal.uin-malang.ac.id/index.php/Math/article/view/4060Mon, 21 May 2018 05:36:25 +0700Fundamental Solution of Elliptic Equation with Positive Definite Matrix Coefficient
http://ejournal.uin-malang.ac.id/index.php/Math/article/view/4717
<p>In this paper, we study the fundamental solution of elliptic equations with real constant coefficients </p><p class="Body">where is a positive definite matrix. We obtained by searching the radial solution so that we solved the equation into ordinary differential equations.</p><h1> </h1>Khoirunisa Khoirunisa, Corina Karim
Copyright (c) 2018 CAUCHY
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http://ejournal.uin-malang.ac.id/index.php/Math/article/view/4717Mon, 21 May 2018 05:36:26 +0700Selection of Ideal Contraceptive Tool Using Hybrid Entropy-Topsis Method
http://ejournal.uin-malang.ac.id/index.php/Math/article/view/4510
<p>The <em>Hybrid Entropy</em>-TOPSIS method is a combination of two methods, <em>Entropy</em> and <em>TOPSIS</em>. The combination of the two methods is used in the decision-making model to improve the quality of a decision. In this research, the <em>Hybrid Entropy</em>-TOPSIS method was applied to determine the ideal contraceptive tool based on the acceptor criteria. Entropy is a method of weighted criteria, while TOPSIS is a method of decision making through the alternative ranking process based on weighted criteria. The criteria are factors which influence to <em>Keluarga Berencana</em> acceptors for selecting contraceptives. The used criteria in this research were the age, blood pressure, menstrual cycle, the use of contraceptives, and the cost. While the Alternative is contraceptive tool itself. The selected alternatives here were Pill, Injection, Condoms, Implant, IUD and MOP / MOW. Based on the results of the questionnaire data and the simulation, it was obtained that pill and implants has the highest ranking and they indicated that pill and implants as an alternative selection of the ideal contraceptives.</p>Endang Wahyu Handamari, Kwardiniya Andawaningtyas, Corina Karim
Copyright (c) 2018 CAUCHY
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http://ejournal.uin-malang.ac.id/index.php/Math/article/view/4510Mon, 21 May 2018 05:36:26 +0700The Construction of Patient Loyalty Model Using Bayesian Structural Equation Modeling Approach
http://ejournal.uin-malang.ac.id/index.php/Math/article/view/5039
<pre>The information on the health status of an individual is often gathered based on a health survey. Patient assessment on the quality of hospital services is important as a reference in improving the service so that it can increase a patient satisfaction and patient loyalty. The concepts of health service are often involve multivariate factors with multidimensional sructure of corresponding factors. One of the methods that can be used to model such these variables is SEM (Structural Equation Modeling). Structural Equation Modelling (SEM) is a multivariate method that incorporates ideas from regression, path-analysis and factor analysis. A Bayesian approach to SEM may enable models that reflect hypotheses based on complex theory. Bayesian SEM is used to construct the model for describing the patient loyalty at <em>Puskesmas</em> in Padang City. The convergence test with the history of trace plot, density plot and the model consistency test were performed with three different prior types. Based on Bayesian SEM approach, it is found that the quality of service and patient satisfaction significantly related to the patient loyalty.</pre>Astari Rahmadita, Ferra Yanuar, Dodi Devianto
Copyright (c) 2018 CAUCHY
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http://ejournal.uin-malang.ac.id/index.php/Math/article/view/5039Mon, 21 May 2018 05:36:27 +0700