Andronicou, Savvas; Milakis, Emmanouil (Springer, 2023)
In this paper, we prove existence and uniqueness of viscosity solutions to the following
system: For i ∈ {1, 2,..., m}
min
F
y, x, ui(y, x), Dui(y, x), D2ui(y, x)
, ui(y, x) − max
j=i
u j(y, x) − ci j(y, x)
...