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This lecture is about mathematics of waves. Waves in structured solids may have interesting and unusual properties. A bridge, for example, can be viewed as a waveguide, and waves can be controlled, so that vibrations are suppressed.

Waves can also be routed around objects by special coatings, ``invisibility cloaks’’. The lecture explains the theory standing behind these interesting phenomena and includes practical examples. Cloaking is explained via a coordinate transformation applied to the wave equation. Implementations of cloaks are also shown.

https://www.liverpool.ac.uk/mathematical-sciences/staff/alexander-movchan/

http://www.independent.co.uk/news/science/revealed-why-the-wobbly-bridge-wobbled-1192835.html/


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