Abraham A. Ungar

Beyond the Einstein Addition Law and its Gyroscopic Thomas Precession

Hyperbolic triangle centers

Analytic hyperbolic geometry and Albert Einstein's special theory of relativity

Analytic hyperbolic geometry

Beyond the Einstein addition law and its gyroscopic Thomas precession

Barycentric Calculus : In Euclidean and Hyperbolic Geometry

Analytic Hyperbolic Geometry and Albert Einsteins Special Theory of Relativity

A Gyrovector Space Approach To Hyperbolic Geometry