ISSN 2086-0382
E-ISSN 2477-3344
CAUCHY
Jurnal Matematika Murni dan Aplikasi
Volume 6, Issue 2, May 2020
CAUCHY
Vol. 6
No. 2
Pages:
49 – 99
Malang
May 2020
ISSN
2086-0382
E-ISSN
2477-3344
𝜒
CAUCHY
Jurnal Matematika Murni dan Aplikasi
Volume 6, Issue 2, May 2020
ISSN : 2086-0382
E-ISSN : 2477-3344
CAUCHY is a mathematical journal published twice a year on May and November by the
Mathematics Department, Faculty of Science and Technology, Universitas Islam Negeri Maulana
Malik Ibrahim Malang. This journal includes research papers, literature studies, analysis, and
problem solving in Mathematics (Algebra, Analysis, Statistics, Computing and Applied
Mathematics).
EDITORIAL BOARD
Editor in Chief : Dr. Sri Harini, M.Si, Maulana Malik Ibrahim State Islamic University of
Malang, Indonesia.
Managing Editor : Mohammad Jamhuri, M.Si, Maulana Malik Ibrahim State Islamic University
of Malang, Indonesia.
Juhari, M.Si, Maulana Malik Ibrahim State Islamic University of Malang,
Indonesia.
Editorial Board : Mario Rosario Guarracino, Computational and Data Science Laboratory
High Performance Computing and Networking Institute National
Research Council of Italy, Italy
Kartick Chandra Mondal, Jadavpur University, Salt Lake Campus, India
Rowena Alma L. Betty, University of the Philippines Diliman, Philippines
Subanar Seno, Gadjah Mada University, Indonesia
Toto Nusantara, State University Of Malang, Indonesia
Edy Tri Baskoro, Institut Teknologi Bandung, Indonesia
Eridani Eridani, Airlangga University, Indonesia
Abdul Halim Abdullah, University of Technology Malaysia, Malaysia
Kusno, University of Jember, Indonesia
Slamin, University of Jember, Indonesia
Riswan Efendi, UIN Sultan Syarif Kasim Riau, Indonesia
Arief Fatchul Huda, UIN Sunan Gunung Djati Bandung, Indonesia
Usman Pagalay, Maulana Malik Ibrahim State Islamic University of Malang,
Indonesia
Abdussakir, Maulana Malik Ibrahim State Islamic University of Malang,
Indonesia
Ari Kusumastuti, Maulana Malik Ibrahim State Islamic University of
Malang, Indonesia
Fachrur Rozi, Maulana Malik Ibrahim State Islamic University of Malang,
Indonesia
CAUCHY
Jurnal Matematika Murni dan Aplikasi
Volume 6, Issue 2, May 2020
ISSN : 2086-0382
E-ISSN : 2477-3344
EDITORIAL BOARD
Elly Susanti, Universitas Islam Negeri Maulana Malik Ibrahim Malang,
Indonesia
Assistant Editor : Mohammad Nafie Jauhari, M.Si, Maulana Malik Ibrahim State Islamic
University of Malang, Indonesia.
Editorial Office
Mathematics Department,
Maulana Malik Ibrahim State Islamic University of Malang
Gajayana st. 50 Malang, East Java, Indonesia 65144
Phone (+62) 81336397956, Faximile (+62) 341 558933
e-mail: cauchy@uin-malang.ac.id
CAUCHY
Jurnal Matematika Murni dan Aplikasi
Volume 6, Issue 2, May 2020
ISSN : 2086-0382
E-ISSN : 2477-3344
FOCUS AND SCOPE
CAUCHY-Jurnal Matematika Murni dan Aplikasi is a mathematical journal published twice a year in
May and November by the Mathematics Department, Faculty of Science and Technology, Maulana Malik
Ibrahim State Islamic University of Malang.
We we lc om e a u t h or s for original articles (research), review articles, interesting case reports, special
articles illustrations that focus on the Mathematics Pure and Applied. Subjects suitable for publication
include, but are not limited to the following fields of:
1. Actuaria
2. Algebra
3. Analysis
4. Applied
5. Computing
6. Econometry
7. Statistics
CAUCHY
Jurnal Matematika Murni dan Aplikasi
Volume 6, Issue 2, May 2020
ISSN : 2086-0382
E-ISSN : 2477-3344
INDEXING AND ABSTRACTING
CAUCHY-Jurnal Matematika Murni dan Aplikasi has been covered (indexed and abstracted)
by following services:
1. DOAJ - (2016-,)(https://doaj.org/toc/2477-3344)
2. D i m e n s i o n s
3. Moraref - (2015-,)-(http://moraref.or.id/index.php/browse/index/36)
4. OneSearch Indonesia - (2015-,)-(http://onesearch.id/Search/Results?filter[]=repoId:IOS2732)
5. Mendeley - (2013-,)-(https://www.mendeley.com/groups/5034091/cauchy/papers/)
6. Indonesian Scientific Journal Database (ISJD) - (2013-,)-(http://isjd.pdii.lipi.go.id/index.php/Direktori- Jurnal.html)
7. Google Scholar - (2009-,)-(https://scholar.google.co.id/citations?hl=en&view_op=list_works&gmla=AJsN-
F6OmoFBk7Q0o2Q-9-
XUIMca1zI8OZ9Lp2EhCtubhL9dCisxNYH9sAiEAU0g0UDT8tyM6Jk3Z666Zu46VRsBYZ6Vjc2a_w&user=dr K-5HkAAAAJ)
8. IPI - (2009-,)-(http://id.portalgaruda.org/?ref=browse&mod=viewjournal&journal=5272)
http://moraref.or.id/index.php/
http://onesearch.id/Search/Results
http://www.mendeley.com/groups/5034091/cauchy/papers/
http://isjd.pdii.lipi.go.id/index.php/
http://id.portalgaruda.org/
CAUCHY
Jurnal Matematika Murni dan Aplikasi
Volume 6, Issue 2, May 2020
ISSN : 2086-0382
E-ISSN : 2477-3344
TABLE OF CONTENTS
Cross-Covariance Weight of GSTAR-SUR Model for Rainfall Forecasting in
Agricultural Areas ..................................................................................................................... 49 – 57
Basis Existence of Internal n-Graph Space ........................................................................... 58 – 65
Pyramid Population Prediction using Age Structure Model .......................................... 66 – 76
Mathematical Model Quartic Curve Bezier of Modification Cubic Curve Bezier .... 77 – 83
On Square-Integrable Representations of A Lie Group of 4-Dimensional Standard
Filiform Lie Algebra ................................................................................................................. 84 – 90
Sensitivity Analysis of Mathematical Model of Coronavirus Disease (COVID-19)
Transmission .............................................................................................................................. 91 – 99
http://ejournal.uin-malang.ac.id/index.php/Math/article/view/5516
http://ejournal.uin-malang.ac.id/index.php/Math/article/view/5516