nLab12d ago

Hitchin-Thrope inequality

Samuel Adrian Antz
synthetic differential geometry Introductions geometry of physics: coordinate systems, smooth spaces, manifolds, smooth homotopy types, supergeometry Differentials Tangency The magic algebraic facts Theorems Axiomatics Models smooth algebra (-ring) differential equations, variational calculus Chern-Weil theory, ∞-Chern-Weil theory Cartan geometry (super, higher) The Hitchin-Thorpe inequality states the Euler characteristic is larger than one and a half times the absolute signature for a smooth..