New posts in Mathematical Physics

Is the Dirac $\delta$-function necessarily symmetric?

Canonical isomorphisms vs Legendre transform

What is the analogue for symplectic structure in case of spin variables?

Why are Lagrangians linear in $\dot{q}$ so ubiquitous? Gauge theory, Berry phase, Dirac Equation, and more

A rigorous definition of the exponential of an operator in QM?

Questions about BRST formalism and BV formalism

Non-unique zero function in the function space (Hilbert space)

Physical meaning of the operator $\exp(-a {\hat{p}}^2)$

Operator-valued vectors and representation theory

Does the convergence of van Hove sequence equivalent to thermodynamic limit?