290 citations · 1.8k across the 59 of their papers we have counts for
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Necessary and Sufficient Condition for Asymptotic Standard Normality of the Two Sample Pivot
Rajeshwari Majumdar, Suman Majumdar
The asymptotic solution to the problem of comparing the means of two heteroscedastic populations, based on two random samples from the populations, hinges on the pivot underpinning…
On the regular conditional distribution of a multivariate Normal given a linear transformation
Rajeshwari Majumdar, Suman Majumdar
We show that the orthogonal projection operator onto the range of the adjoint of a linear operator T can be represented as UT, where U is an invertible linear operator. Using this…
Line of sight anisotropies in the Cosmic Dawn and EoR 21-cm power spectrum
Suman Majumdar, Kanan K. Datta, Raghunath Ghara +5
The line of sight direction in the redshifted 21-cm signal coming from the cosmic dawn and the epoch of reionization is quite unique in many ways compared to any other cosmological…
Modelling the 21 cm Signal From the Epoch of Reionization and Cosmic Dawn
T. Roy Choudhury, Kanan Datta, Suman Majumdar +5
Studying the cosmic dawn and the epoch of reionization through the redshifted 21 cm line are among the major science goals of the SKA1. Their significance lies in the fact that the…
Probing individual sources during reionization and cosmic dawn using SKA HI 21-cm observations
Kanan K. Datta, Raghunath Ghara, Suman Majumdar +4
Detection of individual luminous sources during the reionization epoch and cosmic dawn through their signatures in the HI 21-cm signal is one of the direct approaches to probe the…
Statistics of the epoch of reionization (EoR) 21-cm signal -- II. The evolution of the power spectrum error-covariance
Rajesh Mondal, Somnath Bharadwaj, Suman Majumdar
The EoR 21-cm signal is expected to become highly non-Gaussian as reionization progresses. This severely affects the error-covariance of the EoR 21-cm power spectrum which is impor…