Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Individual and collective dynamics of self-propelled soft particles   Deformable self-propelled particles provide us with one of the most important
nonlinear dissipative systems, which are related, for example, to the motion of
microorganisms. It is emphasized that this is a subject of localized objects in
non-equilibrium open systems. We introduce a coupled set of ordinary
differential equations to study various dynamics of individual soft particles
due to the nonlinear couplings between migration, spinning and deformation. By
introducing interactions among the particles, the collective dynamics and its
collapse are also investigated by changing the particle density and the
interaction strength. We stress that assemblies of self-propelled particles
also exhibit a variety of non-equilibrium localized patterns.

35
The categories of this paper are: mtrl-th
15
The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con
32
The categories of this paper are: atom-ph
16
The categories of this paper are: stat
2
The categories of this paper are: math
36
The categories of this paper are: cmp-lg
19
The categories of this paper are: eess
30
The categories of this paper are: q-alg
28
The categories of this paper are: alg-geom
3
The categories of this paper are: physics
26
The categories of this paper are: bayes-an
18
The categories of this paper are: econ
24
The categories of this paper are: dg-ga
17
The categories of this paper are: q-fin
20
The categories of this paper are: acc-phys