## An Introduction to Lie Groups and the Geometry of Homogeneous SpacesIt is remarkable that so much about Lie groups could be packed into this small book. But after reading it, students will be well-prepared to continue with more advanced, graduate-level topics in differential geometry or the theory of Lie groups. The theory of Lie groups involves many areas of mathematics: algebra, differential geometry, algebraic geometry, analysis, and differential equations. In this book, Arvanitoyeorgos outlines enough of the prerequisites to get the reader started. He then chooses a path through this rich and diverse theory that aims for an understanding of the geometry of Lie groups and homogeneous spaces. In this way, he avoids the extra detail needed for a thorough discussion of representation theory. Lie groups and homogeneous spaces are especially useful to study in geometry, as they provide excellent examples where quantities (such as curvature) are easier to compute.A good understanding of them provides lasting intuition, especially in differential geometry. The author provides several examples and computations. Topics discussed include the classification of compact and connected Lie groups, Lie algebras, geometrical aspects of compact Lie groups and reductive homogeneous spaces, and important classes of homogeneous spaces, such as symmetric spaces and flag manifolds. Applications to more advanced topics are also included, such as homogeneous Einstein metrics, Hamiltonian systems, and homogeneous geodesics in homogeneous spaces. The book is suitable for advanced undergraduates, graduate students, and research mathematicians interested in differential geometry and neighboring fields, such as topology, harmonic analysis, and mathematical physics. |

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An Introduction to Lie Groups and the Geometry of Homogeneous Spaces Andreas Arvanitogeōrgos No preview available - 2003 |

### Common terms and phrases

Ad-invariant adjoint orbit adjoint representation Adº algebra g bi-invariant called Chapter compact Lie group complex structure complexification compute connected Lie group coset curvature tensor curve define Definition denote diffeomorphic dimension direct sum Dynkin diagram Einstein metrics example exptX flag manifold function g e G G-invariant metric g.o. Spaces geodesics geometry given Hamiltonian system hence homogeneous geodesics homogeneous space inner product isometry isomorphism isotropy irreducible isotropy representation isotropy subgroup Kähler-Einstein metric Killing form left-invariant Let G Let G/K Lie group G linear maximal torus metric g naturally reductive numbers obtain one-parameter subgroup product on g Proof Proposition reductive decomposition reductive homogeneous space representation of G Ricci curvature Riemannian homogeneous space Riemannian manifold Riemannian metric Riº sectional curvature simple simply connected smooth manifold SO(n SU(n subgroup of G subspace symmetric space symplectic T-roots tangent space Theorem vector field vector space