Transcritical and pitchfork bifurcation in differential algebraic equations without reduction
Joint Authors
Yasir, Kamal Hamid
Lahmood, Ibrahim H.
Source
Journal of College of Education for Pure Sciences
Issue
Vol. 4, Issue 2 (30 Jun. 2014), pp.88-99, 12 p.
Publisher
University of Thi-Qar College of Education for Pure Sciences
Publication Date
2014-06-30
Country of Publication
Iraq
No. of Pages
12
Main Subjects
Abstract AR
تناول هذا البحث موضوع التفرغ في نظام المعادلات التفاضلية.
تم وضع شروط لجعل نقطة الأصل تقع تحت تأثير نوعان من التفرغ هما (transcritial) و (pitchfork).
تم العمل على جعل هذه الشروط تتناسب مع النظام ذو الدليل 1 و الدليل 2, كذلك ؛ تم تطبيق طريقتين مختلفتين للحصول على هذه الشروط هاتان الطريقتان هما الاعتماد على الجزء التفاضلي و الطريقة الثانية الاعتماد على القيد. يعتبر البحث تعميما للطريقة في المصدر [Wiggins, 1990] الذي طبق على نظام المعادلات التفاضلية الاعتيادية حيث تتلخص طريقة عمله كما يلي : 1.
الاعتماد على الحل في النقطة الحرجة بدلا من الحل العام. 2.
دراسة نوع التفرع من خلال شكل مخطط التفرع و ليس الاستقرارية. هنا تم تعميم هذه الفكرة لكي تتناسب مع نظام المعادلات التفاضلية الجبرية بالاعتماد على الجزء التفاضلي مرة و أخرى بالاعتماد على القيد.
Abstract EN
In this paper, the system of differential algebraic equations (DAEs) are considered and sufficient conditions to make the origin undergoes a transcortical or a pitchfork bi¬furcation are given.
Those conditions talk about index one and index two DAE systems, and gotted by applying two strategies : depending on differential part and depending on constraint.
We generalize the work of [Stephen, 1990] and apply his strategy on index one and two DAEs.
His work applied on Ordinary differential equations (ODEs) with : 1.
equilibrium solution are dealt with instead of solution, and 2.
the shape of bifurcation diagram is looked for instead of looking for the stability of equilibrium solution.
Depending on this we can determine which kind of bifurcation will occur in the system of differential algebraic equations.
Investigate bifurcation points depending on only the constraint equation in [Ian, 1992] had considered here and upgraded to go with DAEs of index one and two.
American Psychological Association (APA)
Yasir, Kamal Hamid& Lahmood, Ibrahim H.. 2014. Transcritical and pitchfork bifurcation in differential algebraic equations without reduction. Journal of College of Education for Pure Sciences،Vol. 4, no. 2, pp.88-99.
https://search.emarefa.net/detail/BIM-411859
Modern Language Association (MLA)
Yasir, Kamal Hamid& Lahmood, Ibrahim H.. Transcritical and pitchfork bifurcation in differential algebraic equations without reduction. Journal of College of Education for Pure Sciences Vol. 4, no. 2 (2014), pp.88-99.
https://search.emarefa.net/detail/BIM-411859
American Medical Association (AMA)
Yasir, Kamal Hamid& Lahmood, Ibrahim H.. Transcritical and pitchfork bifurcation in differential algebraic equations without reduction. Journal of College of Education for Pure Sciences. 2014. Vol. 4, no. 2, pp.88-99.
https://search.emarefa.net/detail/BIM-411859
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 99
Record ID
BIM-411859