Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On relative input of viscous shear into the elasticity equation at
  near-front, near-inlet and the major part of a hydraulic fracture   The input of the hydraulically induced shear traction into the elasticity
equation is estimated for the entire fracture surface. It is established that,
except for negligibly small vicinities of a pointed source and of the fluid
front, the relative input of the viscous shear does not exceed 10 - 4 of the
input of the conventionally accounted term. The estimation is true for
Newtonian, as well as non-Newtonian thinning fluids. This implies that there is
no need to account for viscous shear not only in the form of conventional
near-front asymptotics and fracture conditions, but also in factors entering
them.

2
The categories of this paper are: math
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
21
The categories of this paper are: adap-org
25
The categories of this paper are: patt-sol
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
33
The categories of this paper are: plasm-ph
6
The categories of this paper are: astro-ph
10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
16
The categories of this paper are: stat
22
The categories of this paper are: chao-dyn
36
The categories of this paper are: cmp-lg
8
The categories of this paper are: hep-ex
35
The categories of this paper are: mtrl-th