N. Yannakakis

activity

20082025

most citedA Neumann problem involving the

p (x)

-Laplacian with

p = \infty

in a subdomain

26 citations · 45 across the 10 of their papers we have counts for

collaborators

Showing 2014 · math.FAShow all

2 papers · 2 filters

math.FA2014

The angle of an operator and range and kernel complementarity

Dimosthenis Drivaliaris, Nikos Yannakakis

We show that if the angle of a bounded linear operator on a Banach space, with closed range and closed sum of its range and kernel, is less than $π$ , then its range and kernel are…

math.FA2014

Density of smooth functions in variable exponent Sobolev spaces

Thanasis Kostopoulos, Nikos Yannakakis

We show that if $p_{-} \geq 2$ , then a sufficient condition for the density of smooth functions with compact support, in the variable exponent Sobolev space $W^{1,p(\cdot)}(\mathbb R^…