HURDAL, Norway — Colombia’s first peace talks in a decade were inaugurated half a world away on Thursday with a demonstration of just how differently the two sides view the nearly half-century-old conflict.

The Oslo talks were brief, symbolic, largely perfunctory, and held at a secret venue. They lasted seven hours and were followed by word that substantive talks will begin Nov. 15 in ­Havana, Cuba, and will first tackle ‘‘comprehensive agrarian development.’’