3 papers
math.AP2020
On the inverse source identification problem in for fully nonlinear elliptic PDE
Birzhan Ayanbayev, Nikos Katzourakis
In this paper we generalise the results proved in [N. Katzourakis, An regularisation strategy to the inverse source identification problem for elliptic equations, SIAM J…
math.AP2018
Vectorial variational principles in and their characterisation through PDE systems
Birzhan Ayanbayev, Nikos Katzourakis
We discuss two distinct minimality principles for general supremal first order functionals for maps and characterise them through solvability of associated second order PDE systems…
math.AP2018
Explicit -harmonic functions in high dimensions
Birzhan Ayanbayev
The aim of this work is to derive new explicit solutions to the -Laplace equation, the fundamental PDE arising in Calculus of Variations in the space . These solu…