Grau Gotés, Ma. Àngela (Maria Àngela) (Date of defense: 2015-01-28)
Many of the problems in experimental sciences and other disciplines can be expressed in the form of nonlinear equations. The solution of these equations is rarely obtained in closed form. With the ...
Dall, Aaron Matthew (Date of defense: 2015-02-25)
The main objects of study in this thesis are matroids. In particular we are interested in three particular classes matroids: regular matroids, arithmetic matroids, and internally perfect matroids. Of ...