A generalization of trigonometric convexity and its relation to positive harmonic functions in homogeneous domains

V. Azarin, D. Drasin, P. Poggi-Corradini

We consider functions which are subfunctions with respect to the differential operator $$L_ρ= \frac{\partial^2}{\partial x^2} + \frac{\partial^2}{\partial y^2} + 2ρ\frac{\partial}{…