{"version":"1.0","type":"link","title":"Ursell function - Newikis","description":"In statistical mechanics, an Ursell function or connected correlation function, is a cumulant of a random variable. It can often be obtained by summing over connected Feynman diagrams (the sum over all Feynman diagrams gives the correlation functions).","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400}