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Date: 15-8-2021
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Date: 26-9-2016
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Date: 17-7-2021
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Any nondegenerate closed space curve may be nondegenerately deformed into either of the two curves illustrated above. Neither of these can be nondegenerately transformed into the other.
REFERENCES:
Feldman, E. A. "Deformations of Closed Space Curves." J. Diff. Geom. 2, 67-75, 1968.
Pohl, W. F. "The Self-Linking Number of a Closed Space Curve." J. Math. Mech. 17, 975-985, 1968.
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هل تعرف كيف يؤثر الطقس على ضغط إطارات سيارتك؟ إليك الإجابة
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معهد القرآن الكريم النسوي يقدم خدماته لزائري الإمام الكاظم (عليه السلام)
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