LOWER BOUNDS ON METRIC TSP

New Inapprox Bounds for TSP by Karpinski, Lamis, Schmied 2013 (123/122) HERE

Towards Better Inapprox Bounds for TSP: A Challenge of Global Dependencies, 2015 HERE

Improved Lower buonds on the Approx of the TSP problem HERE

An Explicit Lower bound for TSP with Distances one and two HERE