Wolfgang Hasse

Observable effects in a class of spherically symmetric static Finsler spacetimes

After some introductory discussion of the definition of Finsler spacetimes and their symmetries, we consider a class of spherically symmetric and static Finsler spacetimes which are small perturbations of the Schwarzschild spacetime. The deviations from the Schwarzschild spacetime are encoded in three perturbation functions

Geometrical and kinematical characterization of parallax‐free world models

\phi_0(r)

A Morse-theoretical analysis of gravitational lensing by a Kerr-Newman black hole

,

Gravitational Lensing in Spherically Symmetric Static Spacetimes with Centrifugal Force Reversal

\phi_1(r)

Inertial forces and photon surfaces in arbitrary spacetimes

and

On spacetime models with an isotropic Hubble law

\phi_2(r)

Gravitational Faraday effect in conformally stationary spacetimes

which have the following interpretations:

The apparent size of distant objects

\phi_0

Some optical and dynamical phenomena in the Rindler model

perturbs the time function,

Caustics of wavefronts in general relativity

\phi_1