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Register a new userIsomorphism-invariants and their applications in testing for isomorphism between finitely presented groups
الصفات الثابتة بالتماثل و تطبيقها في التحقق من تماثل الزمر منتهية التمثيل
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تقدم هذه الورقة العلمية بعض الصفات الثابتة بالتماثل في الزمر مع توظيفها في خوارزمية لاختبار زمرتين منتهيتي التمثيل. و تبدأ هذه الخوارزمية بإيجاد الزمر الدوارة المحتواة في كل من الزمرتين المطلوب اختبارهما، و من ثم يقارن توزع مجموعة معينة من عناصر الزمرتين الخاضعتين للاختبار ضمن تلك الزمر الدوارة. تهدف الخوارزمية إلى الوصول إلى إحدى النتيجتين: 1. الحصول على زمرتين تملكان البصمة نفسها. 2. إثبات أن الزمرتين الخاضعتين للاختبار غير متماثلتين.
This paper introduces some isomorphism-invariants for groups and uses them to test two finitely presented groups. The introduced algorithm starts with the construction of all cyclic groups contained in the groups under test, then it compares the distribution of a particular set of elements in the constructed cyclic groups. The algorithm leads to one of these two results: 1. The groups have the same "fingerprint" 2. The groups are not isomorphic
References used
Holt, D. F., Bettina Eick and Eamonn A.O’Brien. (2005). Handbook of Computational Group Theory. Chapman & Hall/CRC Press
Holt, D. F. and Sarah Rees. (1992). Testing for isomorphism between finitely presented groups. Groups, Combinatorics & Geometry Durham, 1990. London Mathematical Society Lecture Note Series 165. 459-475
Magnus, W., Karrass, A. and Solitar, D. (1966). Combinatorial Group Theory Presentations of Groups in Terms of Generators and Relations. Dover Publications, INC. New York
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