3 papers
math.CV2026
Strong Ramadanov Conjecture for Real Ellipsoids in : two approaches
Jan Gregorovic, Ilya Kossovskiy, Son-Ying Li +1
In this paper, we provide two (significantly different) proofs of the well known Strong Ramadanov Conjecture for the class of real ellipsoids in the complex -space.
math.DG2025
Irreducible Killing and conformal Killing tensors on homogeneous plane waves
Jan Gregorovič, Lenka Zalabová
This paper presents a classification of irreducible Killing and conformal Killing 2-tensors on homogeneous plane waves, a specific class of Lorentzian metrics on four-dimensional m…
math.CV2018
On the Beloshapka's rigidity conjecture for real submanifolds in complex space
Jan Gregorovic
A well known Conjecture due to Beloshapka asserts that all totally nondegenerate polynomial models with the length of their Levi-Tanaka algebra are {\em rigid}, that is,…