Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: SPM Bulletin 17   CONTENTS: Lecce Workshop presentations available online; Borel cardinalities
below c_0; Hereditarily non-topologizable groups; A hodgepodge of sets of
reals; Random gaps; Covering a bounded set of functions by an increasing chain
of slaloms; Baire-one mappings contained in a usco map; Applications of
k-covers II; Additivity numbers of covering properties; Combinatorial images of
sets of reals and semifilter trichotomy; Another algebraic equivalent of the
Continuum Hypothesis; A connection between decomposable ultrafilters and
possible cofinalities II; Game Approach to Universally Kuratowski-Ulam Spaces;
On the density of Banach spaces C(K) with the Grothendieck property; Antichains
in partially ordered sets of singular cofinality; Bolzano-Weierstrass principle
of choice extended towards ordinals; Nonequality of Dimensions for Metric
Groups; Not all pure states on B(H) are diagonalizable; A comment on p<t;
Problem of the Issue.

28
The categories of this paper are: alg-geom
34
The categories of this paper are: chem-ph
24
The categories of this paper are: dg-ga
26
The categories of this paper are: bayes-an
1
The categories of this paper are: cs
20
The categories of this paper are: acc-phys
0
The categories of this paper are: hep-ph
6
The categories of this paper are: astro-ph
19
The categories of this paper are: eess
8
The categories of this paper are: hep-ex
25
The categories of this paper are: patt-sol
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
13
The categories of this paper are: quant-ph
36
The categories of this paper are: cmp-lg