EntityQ3925845· pop 5· linked from 40 articlesregular singular pointSign in to saveconcept in differential equation mathematicsConnectionsBessel functionEntityhypergeometric functionEntityFrobenius methodEntitymathematicsEntityInternational Standard Book NumberEntitycomplex numberEntityintegerEntityProvidenceEntityHenri PoincaréEntitySchrödinger equationEntitymathematical physicsEntityordinary differential equationEntityspherical coordinate systemEntitycomplex planeEntitypower seriesEntityLaplace's equationEntityanalytic functionEntityRiemann surfaceEntitycylindrical coordinate systemEntitymeromorphic functionEntityCategoriesComplex analysisOrdinary differential equations