A vacuum solution is a solution of a field equation in which the sources of the field are taken to be identically zero. That is, such field equations are written without matter interaction (i.e.- set to zero).
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Famous quotes containing the words vacuum and/or solution:
“Teenagers who are never required to vacuum are living in one.”
—Fred G. Gosman (20th century)
“Any solution to a problem changes the problem.”
—R.W. (Richard William)