Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An estimation of level sets for non local KPP equations with delay   We study the large time asymptotic behavior of the solutions of the linear
parabolic equation with delay $(*)$: $u_{t}(t,x) = u_{xx}(t,x) - u(t,x) +
\int_{\mathbb{R}} k(x-y) \, u (t-h, y)\, dy$, $x \in \R$, $\ t >0$, and $k(x)
\in L^1(\R)$. As an application we get estimates on the measure of level sets
of non local KPP type equations with delay. For this type of nonlinear
equations we prove that, in contrast with the classical case, the solution to
the initial value problem with data of compact support may not be persistent.

22
The categories of this paper are: chao-dyn
23
The categories of this paper are: solv-int
26
The categories of this paper are: bayes-an
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an
20
The categories of this paper are: acc-phys
18
The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio
21
The categories of this paper are: adap-org
8
The categories of this paper are: hep-ex
24
The categories of this paper are: dg-ga
30
The categories of this paper are: q-alg
1
The categories of this paper are: cs