Ashish Kumar Das

collaborators

3 papers

math.GR2005

On Normal Subgroups of Product of Groups

Ashish Kumar Das

The object of this paper is to find a necessary and sufficient condition for the groups $G_{1}, G_{2}, ..., G_{n}$ so that every normal subgroup of the product $\prod_{i = 1}^{n} G_{i}$ is o…

math.AT2005

Bordism between Dold and Milnor Manifolds

Ashish Kumar Das

It is well known that Dold and Milnor manifolds give generators for the unoriented bordism algebra $N_{*}$ over $Z_{2}$ . The purpose of this paper is to determine thos…

math.AT2004

Cobordism independence of Grassmann manifolds

Ashish Kumar Das

This note proves that, for $F = R, C$ or $H$ , the bordism classes of all non-bounding Grassmannian manifolds $G_{k} (F^{n + k})$ , with $k < n$ and having real dimension $d$ ,…