Forbidden minor multibranched surfaces and critical 2-complexes

Resumen:

In a similar way to the forbidden graph characterization in Graph Theory, we define a minor for multibranched surfaces and consider the forbidden minor.

On the other hand, we define a critical 2-complex.

It turns out that any forbidden multibranched surface contains a critical 2-complex.

In this talk, we exhibit forbidden minor multibranched surfaces which are $K_5 \times S^1$ and $K_{3,3} \times S^1$ families and critical 2-complexes which are contained in that.

This is a joint work with Mario Eudave-Muñoz.

Where to watch:

In-Person:

Auditorium of UCIM, at Cuernavaca Morelos, México.

Or Join the Zoom Meeting:

https://us06web.zoom.us/j/86157130564?pwd=OWFZSU8zUmptSThvLzg2WmpCZE9kdz09

Meeting ID: 861 5713 0564
Passcode: 682467

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