Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Single amplifier biquad based inductor-free Chua's circuit   The present paper reports an inductor-free realization of Chua's circuit,
which is designed by suitably cascading a single amplifier biquad based active
band pass filter with a Chua's diode. The system has been mathematically
modeled with three-coupled first-order autonomous nonlinear differential
equations. It has been shown through numerical simulations of the mathematical
model and hardware experiments, that the circuit emulates the behaviors of a
classical Chua's circuit, e.g., fixed point behavior, limit cycle oscillation,
period doubling cascade, chaotic spiral attractors, chaotic double scrolls and
boundary crisis. The occurrence of chaotic oscillation has been established
through experimental power spectrum, and quantified with the dynamical measure
like Lyapunov exponents.

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The categories of this paper are: math-ph
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The categories of this paper are: cs
2
The categories of this paper are: math
0
The categories of this paper are: hep-ph
12
The categories of this paper are: nucl-th
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The categories of this paper are: hep-lat
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The categories of this paper are: cmp-lg
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The categories of this paper are: quant-ph
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The categories of this paper are: stat
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The categories of this paper are: chao-dyn
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The categories of this paper are: nucl-ex
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The categories of this paper are: atom-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: mtrl-th
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The categories of this paper are: gr-qc
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The categories of this paper are: cond-mat