International Journal of Mathematics and Mathematical Sciences
Volume 15 (1992), Issue 3, Pages 465-468
doi:10.1155/S0161171292000620
On cat (X\p)
Juan Julian Rivadeneyra Perez1
1Departamento de Matemáticas, Universidad Autonoma Metropolitana, A.P. 55-534
2C.P. 09340, México D.F., Iztapalapa, Mexico
Abstract
The Lusternik-Schnirelmann category of a PL-manifold does not increase if we delete a point of it. This is false in the CW-complex category.