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一般化フェラー理論の展開
Christa Cuchiero1, Tonio Möllmann2, Josef Teichmann3
1Department of Statistics and Operations Research, Data Science @ Uni Vienna, Vienna University, Kolingasse 14-16 1, 1090 Wien, Austria.
まとめ
一般化フェラー理論は、局所コンパクトでない空間にフェラー理論を拡張し、確率微分方程式や分数プロセスを支援する。本研究では、構築、経路特性を詳述し、拡張フェラープロセスを導入する。
科学分野:
- 確率論;確率過程;数理解析
背景:
- フェラー理論は、マルコフ過程を分析するための基礎であり、通常は局所コンパクトな状態空間で分析される。;一般化フェラー理論は、これらの概念をより広い状態空間に拡張し、高度な確率モデリングに不可欠である。;応用には、確率偏微分方程式や署名確率微分方程式が含まれる。
研究 の 目的:
- 一般化フェラー過程に関するフォークロアの結果を拡張し、厳密に証明すること。;拡張フェラー過程という新しい概念を導入し、分析すること。;一般化フェラー半群と重み付き空間上の微分方程式との関連を確立すること。
主な方法:
- 一般化フェラー過程の構築と経路特性の詳細な数学的証明。;古典的なフェラー過程およびドゥーブのh変換との一般化フェラー過程の比較分析。;半群と輸送方程式および半流を関連付けるための特性評価方法の適用。
主要な成果:
- 一般化フェラー過程に関するいくつかの主要な結果の拡張と厳密な検証。;確率解析のための新しいフレームワークを提供する拡張フェラー過程の導入。;フェラー半群を用いた重み付き空間上の微分方程式を解くための一般的な方法の実証。
結論:
- 一般化フェラー理論は、複雑な確率システムを分析するための強力なツールである。;新たに導入された拡張フェラー過程は、さらなる調査に値する。;反例は、一般化フェラー半群の定義におけるすべての条件の必要性を確認する。
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