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For questions about mathematical problems arising from physics, the natural science studying general properties of matter, radiation and energy.

10 votes

Can the equation of motion with friction be written as Euler-Lagrange equation, and does it ...

There is another way around, starting with Lagrange, but bypassing his variational construction to reach immediately the presymplectic construction. Considering the motion of a point submitted to a fo …
Patrick I-Z's user avatar
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67 votes

A soft introduction to physics for mathematicians who don't know the first thing about physics

If you really know nothing about physics I suggest you begin with any text book on physics for undergrad. Easy to read, it will introduce the main usual suspects. … These answers are the mathematical versions of physics classical constructions, but it would be very difficult to appreciate them if you have no pedestrian introduction of physics. …