four Laplacian operator
linear operator
mass operator
field operator
machine operator
momentum operator
linear momentum operator
angular momentum operator
parity operator
annihilation operator
annihilation operator
creation operator
displacement operator
infinitesimal time evolution operator
positron operator
angular momentum operator
angular momentum operator
density operator
additive one-particle operator
ladder operator
telegrapher
energy operator
energy-momentum operator
irreducible operator tenso
exchange operator
infinitesimal change operator
operetta
opfics
opiate
opinion