Abstract
We consider the nonlinear fractional problem $$\begin{aligned} (-\Delta )^{s} u + V(x) u = f(x,u)&\quad \hbox {in } \mathbb {R}^N \end{aligned}$$
(
-
Δ
)
s
u
+
V
(
x
)
u
=
f
(
x
,
u
)
in
R
N
We show that ground state solutions converge (along a subsequence) in $$L^2_{\mathrm {loc}} (\mathbb {R}^N)$$
L
loc
2
(
R
N
)
, under suitable conditions on f and V, to a ground state solution of the local problem as $$s \rightarrow 1^-$$
s
→
1
-
.