Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Connected Baranyai's Theorem   Let $K_n^h=(V,\binom{V}{h})$ be the complete $h$-uniform hypergraph on vertex
set $V$ with $|V|=n$. Baranyai showed that $K_n^h$ can be expressed as the
union of edge-disjoint $r$-regular factors if and only if $h$ divides $rn$ and
$r$ divides $\binom{n-1}{h-1}$. Using a new proof technique, in this paper we
prove that $\lambda K_n^h$ can be expressed as the union $\mathcal G_1\cup
\ldots \cup\mathcal G_k$ of $k$ edge-disjoint factors, where for $1\leq i\leq
k$, $\mathcal G_i$ is $r_i$-regular, if and only if (i) $h$ divides $r_in$ for
$1\leq i\leq k$, and (ii) $\sum_{i=1}^k r_i=\lambda \binom{n-1}{h-1}$.
Moreover, for any $i$ ($1\leq i\leq k$) for which $r_i\geq 2$, this new
technique allows us to guarantee that $\mathcal G_i$ is connected, generalizing
Baranyai's theorem, and answering a question by Katona.

23
The categories of this paper are: solv-int
18
The categories of this paper are: econ
24
The categories of this paper are: dg-ga
8
The categories of this paper are: hep-ex
7
The categories of this paper are: hep-th
30
The categories of this paper are: q-alg
13
The categories of this paper are: quant-ph
4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio
27
The categories of this paper are: comp-gas
19
The categories of this paper are: eess
3
The categories of this paper are: physics
32
The categories of this paper are: atom-ph
11
The categories of this paper are: hep-lat
17
The categories of this paper are: q-fin
28
The categories of this paper are: alg-geom