1 citations · 2 across the 6 of their papers we have counts for
8 papers
Smooth Quasi--Einstein Lifts of Locally Embeddable Three-Dimensional CR Manifolds
Masoud Ganji
We prove a analogue of the real-analytic quasi--Einstein lifting theorem of Hill, Lewandowski and Nurowski \cite[Theorem~2.5]{HLN2008}. Every smooth, locally CR-embeddab…
Spatio-temporal determinantal point processes
Nafiseh Vafaei, Mohammad Ghorbani, Masoud Ganji +1
Determinantal point processes are models for regular spatial point patterns, with appealing probabilistic properties. We present their spatio-temporal counterparts and give example…
CR embeddings of nilpotent Lie groups
M. G. Cowling, M. Ganji, A. Ottazzi +1
We show that a connected, simply connected nilpotent Lie group with an integrable left-invariant complex structure on a generating and suitably complemented subbundle of the tangen…
CR embeddings of CR manifolds
M. G. Cowling, M. Ganji, A. Ottazzi +1
We improve results of Baouendi, Rothschild and Treves and of Hill and Nacinovich by finding a much weaker sufficient condition for a CR manifold of type to admit a local CR…
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…
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 …
Quasi-Einstein shearfree spacetimes lifted from Sasakian manifolds
Masoud Ganji, Gerd Schmalz, Daniel Sykes
In this article we prove that a certain class of {\it smooth} Sasakian manifolds admits lifts to 4-dimensional quasi-Einstein shearfree spacetimes of Petrov type II or D. This is r…
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…