Complex sentence: Ingarden became a professor at Nicolaus Copernicus University in Toruń in 1945 shortly after the war, but was banned in 1946 because of the Communist government moved to Jagiellonian University in Kraków, where he was offered a position.
Split into simpler sentences: Ingarden became a professor at Nicolaus Copernicus University in Toruń in 1945 shortly after the war, but was banned in 1946 because of the Communist government. He then moved to the Jagiellonian University in Kraków, where he was offered a position.