3 papers
math.ST2021
A new stochastic order based on discrete Laplace transform and some ordering results of the order statistics
Fatemeh Gharari, Masoud Ganji
This paper aims to study a new stochastic order based upon discrete Laplace transforms. By this order, in a setup where the sample size is random, having discrete delta and nabla d…
math.DG2020
Lorentzian manifolds with shearfree congruences and Kähler-Sasaki geometry
Dmitri V. Alekseevsky, Masoud Ganji, Gerd Schmalz +1
We study Lorentzian manifolds of dimension , equipped with a maximally twisting shearfree null vector field , for which the leaf space …
math.CV2018
On a criterion for local embeddability of 3-dimensional CR-structures
Masoud Ganji, Gerd Schmalz
We introduce a CR-invariant class of Lorentzian metrics on a circle bundle over a 3-dimensional CR-structure, which we call quasi-Fefferman metrics. These metrics generalise the Fe…