Nabanita Ray

activity

20182022

collaborators

3 papers

math.AG2022

Slope Semistability and Positive cones of Grassmann bundles

Snehajit Misra, Nabanita Ray

Let $E$ be a vector bundle of rank $r$ on a smooth complex projective variety $X$ . In this article, we compute the nef and pseudoeffective cones of divisors in the Grassmann bundle…

math.AG2019

Weyl and Zariski chambers on projective surfaces

Krishna Hanumanthu, Nabanita Ray

Let $X$ be a nonsingular complex projective surface. The Weyl and Zariski chambers give two interesting decompositions of the big cone of $X$ . We study these two decompositions and…

math.AG2018

Geometry of $P^{2}$ blown up at seven points

Nabanita Ray

In this paper, we prove that $P^{2}$ blown up at seven general points admits a conic bundle structure over $P^{1}$ and it can be embedded as $(2, 2)$ divisor in $\math…

Slope Semistability and Positive cones of Grassmann bundles

Weyl and Zariski chambers on projective surfaces

Geometry of P2 blown up at seven points

Geometry of $P^{2}$ blown up at seven points