時間分数対称正則化長波方程式の解析技術と多様なカオス識別ツール
Mohammad Safi Ullah1, Md Mehedi Hasan1, Md Aman Mahbub2
1Department of Mathematics, Comilla University, Cumilla, 3506, Bangladesh.
Scientific reports
|December 30, 2025
まとめ
本研究では、[数式:テキスト参照]-展開法を用いて非線形適合時間分数対称正則化長波方程式を解き、多様な厳密解を明らかにし、その手法を確認する。
科学分野:
- 非線形ダイナミクス
- 数理物理学
- 分数階計算
背景:
- 非線形適合時間分数対称正則化長波(SRLW)方程式は、流体中の記憶効果や、光ファイバーにおける弱非線形パルス伝搬をモデル化する。
- これらの現象を理解するには、複雑な分数階微分方程式を解くための堅牢な解析的および数値的方法が必要である。
研究 の 目的:
- 非線形適合時間分数SRLW方程式を解くこと。
- 多様な厳密解を得て、システムのカオス的挙動を解析すること。
主な方法:
- 厳密解を導出するために[数式:テキスト参照]-展開法が採用された。
- ストレンジアトラクタ、リターンマップ、リアプノフ指数などのカオス識別ツールが利用された。
- 解の3次元表現と密度プロットが生成された。
主要な成果:
- 多様な厳密解(ブリーザー波、キンキーブリーザー、二重キンク、およびキンク、ランプ、またはダーク・ブライト・ソリトン波を伴う局所ブリーザー)が得られた。
- システムのカオス的性質は、様々な解析ツールを用いて検出された。
- 解の実部、虚部、絶対値の部分の可視化が提示された。
結論:
- [数式:テキスト参照]-展開法は、非線形適合時間分数問題を解くのに有効である。
- 本研究は、SRLW方程式によって記述される複雑なダイナミクスに関する貴重な洞察を提供する。
- 本研究の結果は、この手法が様々な科学的および数学的分野に適用可能であることを示している。
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