Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Covariant Hysteretic Constitutive Theory for Maxwell's equations:
  Application to Axially Rotating Media   This paper explores a class of non-linear constitutive relations for
materials with memory in the framework of covariant macroscopic Maxwell theory.
Based on earlier models for the response of hysteretic ferromagnetic materials
to prescribed slowly varying magnetic background fields, generalized models are
explored that are applicable to accelerating hysteretic magneto-electric
substances coupled self-consistently to Maxwell fields. Using a parameterized
model consistent with experimental data for a particular material that exhibits
purely ferroelectric hysteresis when at rest in a slowly varying electric
field, a constitutive model is constructed that permits a numerical analysis of
its response to a driven harmonic electromagnetic field in a rectangular
cavity. This response is then contrasted with its predicted response when set
in uniform rotary motion in the cavity.

20
The categories of this paper are: acc-phys
6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
10
The categories of this paper are: q-bio
11
The categories of this paper are: hep-lat
3
The categories of this paper are: physics
15
The categories of this paper are: nucl-ex
31
The categories of this paper are: ao-sci
33
The categories of this paper are: plasm-ph
28
The categories of this paper are: alg-geom
27
The categories of this paper are: comp-gas
19
The categories of this paper are: eess
36
The categories of this paper are: cmp-lg
0
The categories of this paper are: hep-ph
22
The categories of this paper are: chao-dyn
8
The categories of this paper are: hep-ex