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Questions that are about research in mathematics, or about the job of a research mathematician, without being mathematical problems or statements in the strictest sense. Do not use this tag for easy or supposedly easy mathematical questions.

3 votes

Interpretation of the action in classical mechanics

(While this is my first answer here, I have been active on physics.stackexchange for multiple years, specifically in the subject of classical mechanics.) The action is purely a mathematical instrumen …
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