# Introduction to Mathematical Physics/Quantum mechanics/Exercises

**Exercice:**

Study the binding between position operator and momentum operator with the infinitesimal generator of the translation group (see

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**Exercice:**

Study the connection between kinetic moment operator and the infinitesimal generator of the rotations group (see

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**Exercice:**

Study the linear response of a classical oscillator whose equation is:

where is the excitation. Compare with the results obtained at section secreplinmq.