Differential operators Spectral geometry 2 Spectral theory (Mathematics) 2 Atiyah-Singer index theorem 1 Case studies 1 Congresses 1 Differential equations 1 المزيد ... Differential equations, Elliptic 1 Elliptic operators 1 Heat equation 1 Invariants 1 Iterative methods (Mathematics) 1 Laplacian operator 1 Manifolds (Mathematics) 1 Mathematical physics 1 Spherical harmonics 1 Torus (Geometry) 1 أقل ...