The construction of the maximal $A_1$'s in the exceptional algebraic groups

Testerman, Donna2008-12-162008-12-162008-12-16199210.1090/S0002-9939-1992-1100666-2https://infoscience.epfl.ch/handle/20.500.14299/32724simply connected simple algebraic groupmaximal closedconnected subgroupsThe construction of the maximal $A_1$'s in the exceptional algebraic groupstext::journal::journal article::research article