Did Mileva Mari\'c assist Einstein in writing his 1905 path breaking   papers?
  Writers read Einstein's letter to Mari\'c from 1901 in which he wrote: "bringing our work on relative motion to a successful conclusion!" What came afterwards was boosted by a claim that Joffe had seen the original relativity paper manuscript, and that it was signed "Einstein-Marity" (i.e., "Mari\'c"). This drew the attention of some writers to develop a theory according to which Mileva Mari\'c assisted Albert Einstein in solving his physics problems, but her name was left out of the published article and only Einstein's name appears in the journal as author. Historical and primary sources do not support this scenario. 
Galina Weinstein
physics.hist-ph