Antonio Pasini

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Questions related from Antonio Pasini

How many ways to replace a Moebius strip with a disk?

Let V be topological surface, connected and with no borders. It is known that if X and Y are closed subspaces of V, both homeomorphic to a disk, then their complements V-X and V-Y are...

11 September 2019 6,173 14 View

Have social networks a special connection with hereafter?

Suppose you have an account in a social or professional network (e.g. RG). Next, suppose you die. This is not a wish, of course; but you know, it can happen. How can the administrators of the...

01 January 1970 8,633 0 View