Home › Forums › density functional theory › functions and functionals › Field Theory This topic has 0 replies, 1 voice, and was last updated 2 weeks, 2 days ago by mattias12. Viewing 1 post (of 1 total) Author Posts September 27, 2025 at 9:34 am #13137 mattias12Participant action functional in field theory or analytical mechanices Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In