Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Pulse Propagation in Chains with Nonlinear Interactions   Pulse propagation in nonlinear arrays continues to be of interest because it
provides a possible mechanism for energy transfer with little dispersion. Here
we show that common measures of pulse dispersion might be misleading; in
strongly anharmonic systems they tend to reflect a succession of extremely
narrow pulses traveling at decreasing velocities rather than the actual width
of a single pulse. We present analytic estimates for the fraction of the
initial energy that travels in the leading pulses. We also provide analytic
predictions for the leading pulse velocity in a Fermi-Pasta-Ulam beta-chain.

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The categories of this paper are: funct-an
6
The categories of this paper are: astro-ph
12
The categories of this paper are: nucl-th
30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph
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The categories of this paper are: eess
3
The categories of this paper are: physics
9
The categories of this paper are: nlin
11
The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: alg-geom
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The categories of this paper are: supr-con
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The categories of this paper are: q-fin
31
The categories of this paper are: ao-sci
18
The categories of this paper are: econ