Gravitoelectromagnetic analogies are somewhat ubiquitous in General Relativity, and they
are often used to explain peculiar effects of Einstein's theory of gravity in terms of familiar …

Starting from Newton's gravitational theory, we give a general introduction into the
spherically symmetric solution of Einstein's vacuum field equation, the Schwarzschild …

Mass currents in astrophysics generate gravitomagnetic fields of enormous complexity.
Gravitomagnetic helicity, in direct analogy with magnetic helicity, is a measure of entwining …

The general relativistic gravitomagnetic clock effect, in its simplest form, consists of the non‐
vanishing difference in the orbital periods of two counter‐orbiting objects moving in opposite …

We briefly review the current status of nonlocal gravity (NLG), which is a classical nonlocal
generalization of Einstein's theory of gravitation based on a certain analogy with the …

General relativity predicts that two counter-orbiting clocks around a spinning mass differ in
the time required to complete the same orbit. The difference in these two values for the …

Geodesy in a Newtonian framework is based on the Newtonian gravitational potential. The
general-relativistic gravitational field, however, is not fully determined by a single potential …

We present a definition of the geoid that is based on the formalism of general relativity
without approximations; ie, it allows for arbitrarily strong gravitational fields. For this reason …

Extreme-mass-ratio and intermediate-mass-ratio binaries with a millisecond pulsar are
gravitational-wave sources that emit also electromagnetic radiation. The millisecond pulsars …

The orbital motion of a binary system is characterized by various characteristic temporal
intervals which, by definition, are different from each other: the draconitic, anomalistic and …