128 citations · 473 across the 27 of their papers we have counts for
6 papers · 1 filter
Pure Gauss-Bonnet NUT black hole with and without non-central singularity
Sajal Mukherjee, Naresh Dadhich
It is known that NUT solution has many interesting features and pathologies like being non-singular and having closed timelike curves. It turns out that in higher dimensions horizo…
Possible connection between the reflection symmetry and existence of equatorial circular orbit
Sayak Datta, Sajal Mukherjee
We study a viable connection between the circular-equatorial orbits and reflection symmetry across the equatorial plane of a vacuum stationary axis-symmetric spacetime in general r…
Gravitational Wave observatories may be able to detect hyperbolic encounters of Black Holes
Sajal Mukherjee, Sanjit Mitra, Sourav Chatterjee
Gravitational Wave (GW) astronomy promises to observe different kinds of astrophysical sources. Here we explore the possibility of detection of GWs from hyperbolic interactions of…
Multipole moments of compact objects with NUT charge: Theoretical and observational implications
Sajal Mukherjee, Sumanta Chakraborty
We derive the multipole moments of the Kerr-NUT black hole spacetime using the Geroch-Hansen formalism, even though the spacetime is not asymptotically flat. Intriguingly, in the p…
On the connectivity of enhanced power graph of finite group
Sudip Bera, Hiranya Kishore Dey, Sajal Kumar Mukherjee
This paper deals with the vertex connectivity of enhanced power graph of finite group. We classify all abelian groups G such that vertex connectivity of enhanced power graph of G i…
Generalized power sum and Newton-Girard identities
Sudip Bera, Sajal Kumar Mukherjee
In this article we prove an algebraic identity which significantly generalizes the formula for sum of powers of consecutive integers involving Stirling numbers of the second kind.…