Enumeration of extreme points of the subtour polytope for metric TSP is extended to 14 vertices, identifying missing points for n=11 and n=12.
The integrality gap of the traveling salesman problem is 4/3 if the LP solution has at mostn+ 6 non-zero components
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Extending Exact Integrality Gap Computations for the Metric TSP
Enumeration of extreme points of the subtour polytope for metric TSP is extended to 14 vertices, identifying missing points for n=11 and n=12.