S. Biswas

collaborators

2 papers

math.AT2026

Rigidity of self-maps of $V_{n, 2}$ and manifolds tangentially homotopy equivalent to $V_{n, 2} \times S^{k}$

Sagnik Biswas

We study two problems concerning the Stiefel manifolds $V_{n, 2}$ and their products with spheres. First, we address a rigidity problem: we determine, for most values of~ $n$ , all se…

math.AT2026

Smooth manifolds homotopy equivalent to products of spheres

Sagnik Biswas

We classify, up to almost diffeomorphism, the smooth closed oriented manifolds homotopy equivalent to each of the sphere products $S^{4 k - 1} \times S^{4 k}$ , $S^{4 k} \times S^{4 k}$ , an…

Rigidity of self-maps of Vn,2​ and manifolds tangentially homotopy equivalent to Vn,2​×Sk

Smooth manifolds homotopy equivalent to products of spheres

Rigidity of self-maps of $V_{n, 2}$ and manifolds tangentially homotopy equivalent to $V_{n, 2} \times S^{k}$