Sumários

Lie groups and Lie algebras

4 Abril 2017, 17:00 Susana Duarte Santos

The complexification of a real Lie algebra.

Tangent bundle of a manifold M, rough and smooth vector fields on M, derivations on C(M): examples. Lie brackets of smooth vector fields. Results and properties. Related smooth vector fields: results, properties and examples. The pushforward of a smooth vector field by a diffeomorphism.   


Lie groups and Lie algebras

29 Março 2017, 14:00 Susana Duarte Santos

Direct product of two Lie algebras. Quotient of a Lie algebra by a Lie ideal. Lie algebra homomorphisms. Examples. First isomorphism theorem. Examples. Representations of a Lie algebra and Ado's theorem. The adjoint representation of a Lie algebra. Derivations of an algebra. The inner derivations of a Lie algebra: properties. Structure constants.


Lie groups and Lie algebras

28 Março 2017, 18:30 Susana Duarte Santos

Examples related to the theory already developed.


Lie groups and Lie algebras

28 Março 2017, 17:00 Susana Duarte Santos

More results about Lie group homomorphisms. One more example of Lie subgroups: a dense Lie subgroup of the 2-torus.

Lie algebra: definition, examples and properties. Lie subalgebras and Lie ideals of a Lie algebra: examples. The center and the derived algebra of a Lie algebra. Simple Lie algebras: examples.


Lie groups and Lie algebras

22 Março 2017, 14:00 Susana Duarte Santos

Lie group homomorphisms and Lie group isomorphisms: properties and examples. Quaternions. Some examples of isomorphic Lie groups.