2 citations · 2 across the 3 of their papers we have counts for
3 papers
math.AP2024
Nearness and solvability of non-invariant equations on stratified groups
Marianna Chatzakou, Michael Ruzhansky, Nikos Yannakakis
We prove the well-posedness of the differential equation in the setting of a stratified group when the considered second-order differential operator can be…
math.AP2023★ 2 cited
The double phase Dirichlet problem when the lowest exponent is equal to 1
Alexandros Matsoukas, Nikos Yannakakis
In this paper we prove an existence and uniqueness result for the double phase Dirichlet problem when the lowest exponent is equal to 1. Our solution is a function of bounded varia…
math.FA2010
Stampacchia's property, self-duality and orthogonality relations
Nikos Yannakakis
We show that if the conclusion of the well known Stampacchia Theorem, on variational inequalities, holds on a Banach space X, then X is isomorphic to a Hilbert space. Motivated by…