Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A simple class of infinitely many absolutely exotic manifolds   We show that the smooth $4$-manifold $M$ obtained by attaching a $2$-handle
to $B^4$ along a certain knot $K\subset \partial B^4$ admits infinitely many
absolutely exotic copies $M_n$, $n=0,1,2..$, such that each copy $M_n$ is
obtained by attaching $2$-handle to a fixed compact smooth contractible
manifold $W$ along the iterates $f^{n}(c)$ of a knot $c\subset \partial W$ by a
diffeomorphism $f:\partial W \to \partial W$. This generalizes the example in
author's 1991 paper, which corresponds to $n=1$ case.

23
The categories of this paper are: solv-int
8
The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom
26
The categories of this paper are: bayes-an
1
The categories of this paper are: cs
0
The categories of this paper are: hep-ph
3
The categories of this paper are: physics
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
7
The categories of this paper are: hep-th
18
The categories of this paper are: econ
15
The categories of this paper are: nucl-ex
24
The categories of this paper are: dg-ga
16
The categories of this paper are: stat