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The Invariant of Immersions under Isotwist Folding
EL-GOUL, MABROUK SALAM,BASHER, MOHAMED ESMAIL 대한수학회 2006 Kyungpook mathematical journal Vol.46 No.1
In this paper, we will introduce the isotwist foldings of a manifold M into itself. The limits of the isotwist foldings of a manifold are obtained. Also the relations between conditional retraction and this type of the foldings are achieved. Finally the variant and invariant of the immersion under this type of foldings are deduced.
The Invariant of Immersions under Isotwist Folding
El-Goul, Mabrouk Salam,Basher, Mohamed Esmail Department of Mathematics 2006 Kyungpook mathematical journal Vol.46 No.1
In this paper, we will introduce the isotwist foldings of a manifold M into itself. The limits of the isotwist foldings of a manifold are obtained. Also the relations be-tween conditional retraction and this type of the foldings are achieved. Finally the variant and invariant of the immersion under this type of foldings are deduced.