Add spaces: HewasalsoaveryinfluentialfigurewithinGermanmathematics:

Answer: He was also a very influential figure within German mathematics :

Add spaces: OriginalThuleAudioPA250Blogosignwithsilvertextfordesignupdateorspareparts.

Answer: Original Thule Audio PA250Blogo sign with silvertext for design update or spare parts.

Add spaces: OnIntercity-Expresstrains(ICE)youhavethechoice:youcanmakecallswithouttheconnectionbeinglostinthecellphonearea.Oryoucanrelaxwithoutbeingdisturbedintherestarea.

Answer:
On Intercity-Express trains (ICE) you have the choice: you can make calls without the connection being lost in the cell phone area. Or you can relax without being disturbed in the rest area.