The ARCTIC CIRCLE THEOREM or Why do physicists play dominoes?

determining trick. For those of you who know a little matrix algebra, you will know that the determinants of many square matrices are just the products of their eigenvalues ​​and that Kasteleyn's formula is really a product of eigenvalues. However, they are not the eigenvalues ​​of our matrices but of some closely related matrices. Another level of cunning. Again, if you're interested in the details, I'll link you to a nice article by Jim Propp that explains it all. Enough for today? I sure do! After this crazy year and yet another video marathon, I really need a very, very, very long vacation.

As usual, let me know in the comments which parts of this video you liked best. What worked for you and what didn't work for you. Stay safe!