13531 - Unipotent algebraic groups |
13532 - Unipotent and nilpotent classes in simple algebraic groups and Lie algebras |
13533 - Uniqueness and non-uniqueness of semigroups generated by singular diffusion operators |
13534 - Unit equations in diophantine number theory |
13535 - Unit groups of classical rings |
13536 - Unitäre Darstellungen der Klassischen Gruppen |
13537 - Unitary representation theory of exponential Lie groups |
13538 - Unitary representations of groups, duals and characters |
13539 - Unitary representations of reductive Lie groups |
13540 - Unitary representations of solvable Lie groups |