Now showing items 1-4 of 4

• #### Attractors for a class of semi-linear degenerate parabolic equations ﻿

(2013-12-31)
We consider degenerate parabolic equations of the form ∂tu = Δλu + f(u) u{pipe}∂Ω = 0, u{pipe}t=0 = u0 in a bounded domain Ω ⊂N, where Δλ is a subelliptic operator of the type (Formula presented.) We prove global existence ...
• #### Attractors met X-elliptic operators ﻿

(2014-12-31)
We consider degenerate parabolic and damped hyperbolic equations involving an operator L, that is X-elliptic with respect to a family of locally Lipschitz continuous vector fields X={X1,... Xm}. The local well-posedness ...
• #### Hard-type inequalities for $\Delta_{\lambda}$-Laplacians ﻿

(2015-12-31)
We derive Hardy-type inequalities for a large class of sub-elliptic operators that belong to the class of (Formula presented.) -Laplacians and find explicit values for the constants involved. Our results generalize previous ...
• #### Hardy type inequalities for $\Delta_{\lambda}$-Laplacians ﻿

(2016-01-01)
We derive Hardy-type inequalities for a large class of sub-elliptic operators that belong to the class of $\Delta_{\lambda}$-Laplacians and find explicit values for the constants involved. Our results generalize previous ...