About: http://webisa.webdatacommons.org/43779972

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	where r is position, ?? is the Bloch wave, u is a periodic function with the same periodicity as the crystal, k is a vector of real numbers called the crystal wave vector, e is Euler's number, and i is the imaginary unit.
http://www.w3.org/ns/prov#wasQuotedFrom	wikipedia.org