3 citations · 6 across the 5 of their papers we have counts for
6 papers
Generating Function of Single Centered Black Hole Index from the Igusa Cusp Form
Ajit Bhand, Ashoke Sen, Ranveer Kumar Singh
We introduce manifestly duality invariant generating function of the index of single centered black holes in the heterotic string theory compactified on a six dimensional torus. Th…
Mock Modularity In CHL Models
Ajit Bhand, Ashoke Sen, Ranveer Kumar Singh
Dabholkar, Murthy and Zagier (DMZ) proved that there is a canonical decomposition of a meromorphic Jacobi form of integral index for with poles on tors…
Zagier's weight mock modular form
Ajit Bhand, Ranveer Kumar Singh
Mock modular forms have their origins in Ramanujan's pioneering work on mock theta functions. In a 1975 paper, Zagier proved certain transformation properties of the generating fun…
Maass lifts of half-integral weight Eisenstein series and theta powers
Ajit Bhand, Karam Deo Shankhadhar, Ranveer Kumar Singh
In this paper, we explicitly construct mock modular forms whose shadows are Eisenstein series of arbitrary integral and half-integral weight, level and character at the cusps $\inf…
Bhargava's Cube and Black Hole Charges
Nabamita Banerjee, Ajit Bhand, Suvankar Dutta +2
Black holes in a class of string compactifications, known as STU models, carry four electric and four magnetic charges. Furthermore a duality group, given by the product of three c…
Geodesic Reduction via Frame Bundle Geometry
Ajit Bhand
A manifold with an arbitrary affine connection is considered and the geodesic spray associated with the connection is studied in the presence of a Lie group action. In particular,…