Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Evolving extrinsic curvature and the cosmological constant problem   The concept of smooth deformation of Riemannian manifolds associated with the
extrinsic curvature is explained and applied to the FLRW cosmology. We show
that such deformation can be derived from Einstein-Hilbert-like dynamical
principle producing an observable effect in the sense of Noether. As a result,
we notice on how the extrinsic curvature compensates both quantitative and
qualitative difference between the cosmological constant $ \Lambda$ and the
vacuum energy $\rho_{vac}$ obtaining the observed upper bound for the
cosmological constant problem at electroweak scale. The topological
characteristics of the extrinsic curvature are discussed showing that the
produced extrinsic scalar curvature is an evolving dynamical quantity.

22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
23
The categories of this paper are: solv-int
9
The categories of this paper are: nlin
28
The categories of this paper are: alg-geom
19
The categories of this paper are: eess
11
The categories of this paper are: hep-lat
37
The categories of this paper are: supr-con
6
The categories of this paper are: astro-ph
29
The categories of this paper are: funct-an
16
The categories of this paper are: stat
14
The categories of this paper are: math-ph
0
The categories of this paper are: hep-ph
31
The categories of this paper are: ao-sci
12
The categories of this paper are: nucl-th
24
The categories of this paper are: dg-ga