𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Fundamental groups, Γ-groups, and codimension two submanifolds

✍ Scribed by Sylvain E. Cappell; Julius L. Shaneson


Book ID
112783610
Publisher
European Mathematical Society
Year
1976
Tongue
English
Weight
568 KB
Volume
51
Category
Article
ISSN
0010-2571

No coin nor oath required. For personal study only.


📜 SIMILAR VOLUMES


Manifolds with finite cyclic fundamental
✍ Naotsugu Chinen 📂 Article 📅 2000 🏛 Elsevier Science 🌐 English ⚖ 123 KB

A closed connected n-manifold N is called a codimension 2 fibrator (codimension 2 orientable fibrator, respectively) if each proper map p : M → B on an (orientable, respectively) (n+2)-manifold M each fiber of which is shape equivalent to N is an approximate fibration. Let r be a nonnegative integer

Manifolds with hyperhopfian fundamental
✍ Yongkuk Kim 📂 Article 📅 1999 🏛 Elsevier Science 🌐 English ⚖ 77 KB

Every hopfian n-manifold N with hyperhopfian fundamental group is known to be a codimension-2 orientable fibrator. In this paper, we generalize to the non-orientable setting by considering the covering space N of N corresponding to H , where H is the intersection of all subgroups H i of index 2 in π

Trees, fundamental groups and homology g
✍ Katsuya Eda; Masasi Higasikawa 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 173 KB

For a tree T of its height equal to or less than !1, we construct a space XT by attaching a circle to each node and connecting each node to its successors by intervals. H is the Hawaiian earring and H T 1 (X ) denotes a canonical factor of the ÿrst integral singular homology group. The following equ