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All Journal Basis : Jurnal Ilmiah Matematika SCIENCE MATH
Didi Harlianto
Universitas Pembangunan Nasional Veteran Jakarta
Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Mathematics Physics

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ANALISIS KESTABILAN MODEL PENYEBARAN FLU BURUNG TERHADAP POPULASI UNGGAS Syifaul Janan; Tuhfatul Janan; Fani Firmansyah; Didi Harlianto; Nicky Yongkimandalan
SCIENCE MATH: Jurnal Ilmu Sains dan Matematika Vol. 1 No. 2 (2025): May
Publisher : PT Innovative Academic Journals

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.1234/1ccn7t70

Abstract

This research aims to analyze Avian Influenza spread model around the equilibrium point. The population discussed is the poultry population which consists of two sub-populations, namely susceptible and infective. The method used is literature study through reference books and scientific articles related to the models. Then, the mathematical model, equilibrium point, and model stability were calculated. The results of calculations were made into a simulation model using Matlab and Maple software. It was found that there was an Avian Influenza virus spread to the poultry population which was influenced by several factors, namely birth, natural death, death due to infection, and migration (movement).
Representasi Integral Fraksional Fungsi Secan Hiperbolik dan Cosecan Hiperbolik Syifaul Janan; Didi Harlianto; Andro Kurniawan
Basis : Jurnal Ilmiah Matematika Vol. 5 No. 1 (2026): BASIS: Jurnal Ilmiah Matematika
Publisher : Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/jhq2s746

Abstract

Penelitian ini mengkaji representasi integral fraksional Riemann–Liouville pada fungsi secan hiperbolik dan cosecan hiperbolik menggunakan pendekatan deret Maclaurin. Kebaruan penelitian ini terletak pada perolehan bentuk eksplisit integral fraksional kedua fungsi tersebut serta analisis peran singularitas terhadap validitas representasi analitis. Hasil analisis menunjukkan bahwa fungsi secan hiperbolik dapat direpresentasikan secara analitis melalui deret pangkat yang konvergen pada domain |t| < π/2 sehingga integral fraksionalnya konsisten dengan integral klasik. Sebaliknya, fungsi cosecan hiperbolik memiliki singularitas di titik asal yang membatasi representasi analitisnya hanya pada suku non-singular. Implikasi matematis dari hasil ini menunjukkan adanya keterbatasan pendekatan deret untuk fungsi bersingular. Simulasi numerik menggunakan Matlab mendukung hasil teoritis dan memperlihatkan kesesuaian perilaku integral fraksional pada kedua fungsi tersebut.
Co-Authors Andro Kurniawan Fani Firmansyah Nicky Yongkimandalan Syifaul Janan Tuhfatul Janan