Journal of the Chungcheong Mathematical Society (충청수학회지)
- Volume 18 Issue 1
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- Pages.65-72
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- 2005
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- 1226-3524(pISSN)
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- 2383-6245(eISSN)
THE INVARIANT OF IMMERSIONS UNDER ISOTWIST FOLDING
- El-Ghoul, Mabrouk Salam (Department of Mathematics Faculty of Science, Tanta University) ;
- Basher, Mohamed Esmail (Department of Mathematics Faculty of Education(Suez), Suez-Canal University)
- Received : 2005.02.11
- Published : 2005.04.30
Abstract
In this paper we will introduce all types of 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 folding are achieved. Finally the variant and invariant of the immersion under the type of folding are deduced.