Optimal Control of a Delay-Varying Computer Virus Propagation Model

<table>The control variable <svg height="16.275" id="M109" style="vertical-align:-3.13504pt" version="1.1" viewbox="0 0 33.162498 16.275" width="33.162498" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg> versus time <svg height="10.3875" id="M110" style="vertical-align:-0.11285pt" version="1.1" viewbox="0 0 5.9250002 10.3875" width="5.9250002" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg> for different weight factors.</table>

Discrete Dynamics in Nature and Society

Optimal Control of a Delay-Varying Computer Virus Propagation Model

Figure 7