Re: My LP Formulation of the TSP: Conclusions

moustapha.diaby@xxxxxxxxxxxxxxxxxx wrote:
....
After further checking, I found that in the absence of Constraints
2.12 - 2.13 (of the previous version), the flow connectivity
constraints on the y-variables *only* (i.e., Constraint 2.8) were not
sufficient for one of the steps of Proposition 2
(Specifically,Expression 2.28 in the proof) to always hold. Hence,
constraints 2.12 - 2.13 were indeed not redundant in the previous
version of the paper.
....

As a programmer, I am interested in the process problems behind errors.
Suppose my program crashes because I got the wrong limit on a loop.
Obviously I need to fix that specific error. I also need to examine how
I decided on the loop limit, to see if the root cause of that error may
have affected other loops.

Until presented with a counter-example, you thought those constraints
were redundant. Do you understand what was wrong with your reasoning
about them? Could the same problem have affected anything else?

Patricia
.

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