https://www.cimat.mx/wp-content/uploads/2021/04/transparent.png00Jean Paul Delaye Arredondohttps://www.cimat.mx/wp-content/uploads/2021/04/transparent.pngJean Paul Delaye Arredondo2021-03-23 20:33:402021-03-23 20:33:40Extremal values of the trace norm over oriented trees