December 2016 January 2017 February 2017 Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa 1 2 3 1 2 3 4 5 6 7 1 2 3 4 4 5 6 7 8 9 10 8 9 10 11 12 13 14 5 6 7 8 9 10 11 11 12 13 14 15 16 17 15 16 17 18 19 20 21 12 13 14 15 16 17 18 18 19 20 21 22 23 24 22 23 24 25 26 27 28 19 20 21 22 23 24 25 25 26 27 28 29 30 31 29 30 31 26 27 28 |

4:00 pm Friday, January 20, 2017 Undergraduate Colloquium: Shapeshifting: Things you can and cannot do via cut and pasteby Steve Wang (Rice University) in HBH227- How can we see that two shapes have the same area? One simple method would be to see if we can cut one of them into finitely many pieces, and then move the pieces around so that they exactly cover the second shape. If we have two polygons that have the same area, can we always tell that they have the same area by using this method? We'll play around with this question and some of its generalizations, which will lead us to some interesting places, including one of Hilbert’s problems…
Submitted by mathweb@rice.edu |