214 citations · 1.8k across the 77 of their papers we have counts for
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Conservation laws for a general Lorentz connection
Nikodem J. Poplawski
We derive conservation laws for energy-momentum (canonical and dynamical) and angular momentum for a general Lorentz connection.
Covariant differentiation of spinors for a general affine connection
Nikodem J. Poplawski
We show that the covariant derivative of a spinor for a general affine connection, not restricted to be metric compatible, is given by the Fock-Ivanenko coefficients with the antis…
Massive vectors from projective-invariance breaking
Nikodem J. Poplawski
A general affine connection has enough degrees of freedom to describe the classical gravitational and electromagnetic fields in the metric-affine formulation of gravity. The gravit…
F(R) gravity in purely affine formulation
Nikodem J. Poplawski
The purely affine, metric-affine and purely metric formulation of general relativity are dynamically equivalent and the relation between them is analogous to the Legendre relation…
A unified, purely affine theory of gravitation and electromagnetism
Nikodem J. Poplawski
In the purely affine formulation of gravity, the gravitational field is represented by the symmetric part of the Ricci tensor of the affine connection. The classical electromagneti…
The Maxwell Lagrangian in purely affine gravity
Nikodem J. Poplawski
The purely affine Lagrangian for linear electrodynamics, that has the form of the Maxwell Lagrangian in which the metric tensor is replaced by the symmetrized Ricci tensor and the…