Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hubble multi-scalar inflation   Multiple field models of inflation exhibit new features than single field
models. In this work, we study the hierarchy of parameters based on Hubble
expansion rate in curved field space and derive the system of flow equations
that describe their evolution. Then we focus on obtaining derivatives of number
of $e$-folds with respect to scalar fields during inflation and at hypersurface
of the end of inflation.

37
The categories of this paper are: supr-con
23
The categories of this paper are: solv-int
16
The categories of this paper are: stat
29
The categories of this paper are: funct-an
27
The categories of this paper are: comp-gas
28
The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th
14
The categories of this paper are: math-ph
10
The categories of this paper are: q-bio
8
The categories of this paper are: hep-ex
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an
33
The categories of this paper are: plasm-ph
22
The categories of this paper are: chao-dyn
24
The categories of this paper are: dg-ga