From the 1 of 2 papers with an AI index.
2 papers
math.DG2026
Existence of the longest arcs for left-invariant three-dimensional contact sub-Lorentzian structures
A. V. Podobryaev
The paper studies the existence of longest arcs—optimal curves—for left-invariant three-dimensional contact sub-Lorentzian structures, providing sufficient conditions for such arcs…
math.DG2026
One-parametric series of SO(1,1)-symmetric (sub-)Lorentzian structures on the universal covering of SL(2,R)
A. V. Podobryaev
We consider a one-parametric series of left-invariant Lorentzian structures on the universal covering of the Lie group SL(2,R). These structures have SO(1,1)-symmetry and they are…