44 citations · 139 across the 19 of their papers we have counts for
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Weighing the curvature invariants
Jan Dragašević, Ina Moslavac, Ivica Smolić
We prove several inequalities between the curvature invariants, which impose constraints on curvature singularities. Some of the inequalities hold for a family of spacetimes which…
Near-horizon aspects of black holes in quantum spacetime
Nikola Herceg, Tajron Jurić, A. Naveena Kumara +2
We give a short introduction to the formalism of noncommutative (twisted) differential geometry that is used to derive the equations of motion for the gravitational perturbation of…
Noncommutative quasinormal modes of Schwarzschild black hole
Nikola Herceg, Tajron Jurić, A. Naveena Kumara +2
We study gravitational perturbations of the Schwarzschild metric in the context of noncommutative gravity. and noncommutativity are introduced through a Moyal twist of…
Hexadecapole at the heart of nonlinear electromagnetic fields
Ana Bokulić, Tajron Jurić, Ivica Smolić
In classical Maxwell's electromagnetism, monopole term of the electric field is proportional to , while higher order multipole terms, sourced by anisotropic sources, fall-o…
Generalizations and challenges for the spacetime block-diagonalization
Ana Bokulić, Ivica Smolić
Discovery that gravitational field equations may coerce the spacetime metric with isometries to attain a block-diagonal form compatible with these isometries, was one of the gems b…
Stationary spacetimes with time-dependent real scalar fields
Edgardo Franzin, Ivica Smolić
In 1981 Wyman classified the solutions of the Einstein--Klein--Gordon equations with static spherically symmetric spacetime metric and vanishing scalar potential. For one of these…
Schwarzschild spacetime immersed in test nonlinear electromagnetic fields
Ana Bokulić, Ivica Smolić
Kerr black hole immersed in test, asymptotically homogeneous magnetic field, aligned along the symmetry axis, is described by Wald's solution. We show how the static case of this s…
Generalizations of the Smarr formula for black holes with nonlinear electromagnetic fields
Luka Gulin, Ivica Smolić
We present a direct, geometric derivation of the generalized Smarr formula for the stationary axially symmetric black holes with nonlinear electromagnetic fields. The additional te…
On symmetry inheritance of nonminimally coupled scalar fields
Irena Barjašić, Ivica Smolić
We present the first symmetry inheritance analysis of fields nonminimally coupled to gravity. In this work we are focused on the real scalar field with nonminimal coupling of t…
On the various aspects of electromagnetic potentials in spacetimes with symmetries
Ivica Smolić
We revise and generalize the properties of the electric and the magnetic scalar potentials in spacetimes admitting a Killing vector field: Their constancy on the Killing horizons,…
Killing Horizons as Equipotential Hypersurfaces
Ivica Smolić
In this note we present a new proof that Killing horizons are equipotential hypersurfaces for the electric and the magnetic scalar potential, that makes no use of gravitational fie…