510 abstractharmonicanalysis algebra classicalandquantumgravitation cosmology diffeomorphisms differential differentialequations differentialgeometry fourieranalysis functionalanalysis geometry globalanalysis(mathematics) globaldifferentialgeometry harmonicanalysis mathematicalandcomputationalphysics mathematicalmethodsinphysics mathematicalphysics mathematics non-associativeringsandalgebras partial partialdifferentialequations pseudodifferentialoperators relativitytheory shapes theoretical visualization