added references for stratified version of PT construction

]]>Thanks for alerting me. I’ll look into harmonizing the notation.

]]>What’s the least expensive route to fix the mistake in the second line, i.e., it should be $Y$ rather than $X$? Trouble is that the graphic has $X$ as the manifold. But later the page persists with $X$ as submanifold of $Y$.

]]>added to the Idea-section (here) the description of PT-collapse as the function that assigns “asymptotic distance form the submanifold”, an illustrating graphics, and a comment that this represents the Cohomotopy charge of the submanifold

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