Formas bilineales simétricas y formas cuadráticas. El radical.
https://us02web.zoom.us/rec/share/fPHwbQNrFombvrVnIRhHnD-Q3uC1qQUtunuhUm5gjXH2YfbOX_96B3IINTMdNiw.8xu6Q37cFLHHKgW6?startTime=1603118310000
https://us02web.zoom.us/rec/share/nr6Ds3jQK3BePDikVzauQMUUPt7UD9e3Ihz2tKSYA_ZtqFL3T07cVfj0kmHyiNJl.1dM3gB1J5tCRMTos?startTime=1603291176000
https://us02web.zoom.us/rec/share/dSu8tqkawFYg-S_E9El9Ua4YBc4jUKUn-r0eY29hnw_wW-P4-_1suMzTeo1SDI4W.gxWJDuaE_TuOnJsg?startTime=1603464064000