EntityQ2509489· pop 10· linked from 131 articlesHilbert's sixteenth problemSign in to saveOn topology of algebraic curves and surfacesConnectionsParisEntityDavid HilbertEntityHenri PoincaréEntityreal numberEntityWayback MachineEntitydigital object identifierEntitybibcodeEntitydynamical systemEntityHilbert's problemsEntitycontinuum hypothesisEntityQ22908627EntityInternational Congress of MathematiciansEntityalgebraic curveEntityAxel HarnackEntityIvan PetrovskyEntitystationary pointEntitylimit cycleEntityreal projective planeEntityHilbert's third problemEntityHilbert's seventh problemEntityCategoriesDynamical systemsHidden oscillationHilbert's problemsReal algebraic geometryUnsolved problems in geometry