Four series of hyperbolic space groups with simplicial domains, and their supergroups
Foyers des surfaces du second ordre
Foyers et directrices des surfaces du second ordre
Foyers et directrices des surfaces du second ordre
Free constructions of 2-structures
Free extensions of -systems
Free extensions of coupled systems
Freie Erweiterungen von Schemen -ten Grades
Freie quasiaffine Ebenenerweiterungen.
Frieze patterns
Frobenius collineations in finite projective planes.
Functional equation associated with triangle geometry. (Summary).
Functional equations associated with triangle geometry.
Funktionale von primitiven Polygonen Kleinscher Ebenen.
Further thoughts on a focusing property of the ellipse.
Galilean plane with commutative and nonlinear geometry.
Galilei Laguerre geometry and rational circular offset surfaces.
Galois triangle theory for certain free modules
Galois triangle theory for direct summands of modules
Ganzzahlige Multiplication der elliptischen Functionen in Verbindung mit dem Schliessungsproblem.