Robuta

https://en.wikibooks.org/wiki/Circuit_Theory/Simultaneous_Equations/ex1MuPad
circuit theorysimultaneous equationsopen bookswikibooks
https://www.arxiv.org/abs/1705.01381
Abstract page for arXiv paper 1705.01381: On the simultaneous Diophantine equations m.(x_1^k+....+x_{t_1}^k)=n.(y_1^k+....+y_{t_2}^k); k=1,3
on thediophantine equationssimultaneous