Thank you Professor!
Then should we expect this be fixed or ignored ? When I read your thesis about the generation algorithm ,the subset elimination method impressed me . In fact , in the simple case, this stage is already enough. However, a complex case need further process. I think the concept of 'surveillance 'and the 'topological rings' is clear enough, but still can not get a clear thought about how the further operation starts or works... Would you please give me some guidance about this?
Best,
Max
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