Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Non-conservative kinetic exchange model of opinion dynamics with
  randomness and bounded confidence   The concept of a bounded confidence level is incorporated in a
nonconservative kinetic exchange model of opinion dynamics model where opinions
have continuous values $\in [-1,1]$. The characteristics of the unrestricted
model, which has one parameter $\lambda$ representing conviction, undergo
drastic changes with the introduction of bounded confidence parametrised by
$\delta$. Three distinct regions are identified in the phase diagram in the
$\delta-\lambda$ plane and the evidences of a first order phase transition for
$\delta \geq 0.3$ are presented. A neutral state with all opinions equal to
zero occurs for $\lambda \leq \lambda_{c_1} \simeq 2/3$, independent of
$\delta$, while for $\lambda_{c_1} \leq \lambda \leq \lambda_{c_2}(\delta)$, an
ordered region is seen to exist where opinions of only one sign prevail. At
$\lambda_{c_2}(\delta)$, a transition to a disordered state is observed, where
individual opinions of both signs coexist and move closer to the extreme values
($\pm 1$) as $\lambda$ is increased. For confidence level $\delta < 0.3$, the
ordered phase exists for a narrow range of $\lambda$ only. The line $\delta =
0$ is apparently a line of discontinuity and this limit is discussed in some
detail.

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The categories of this paper are: astro-ph
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The categories of this paper are: nlin
37
The categories of this paper are: supr-con
31
The categories of this paper are: ao-sci
29
The categories of this paper are: funct-an
20
The categories of this paper are: acc-phys
11
The categories of this paper are: hep-lat
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The categories of this paper are: q-fin
13
The categories of this paper are: quant-ph
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The categories of this paper are: nucl-th
10
The categories of this paper are: q-bio
32
The categories of this paper are: atom-ph
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The categories of this paper are: math
30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph
25
The categories of this paper are: patt-sol