30 citations · 211 across the 17 of their papers we have counts for
15 papers · 1 filter
Ghost-free infinite-derivative dilaton gravity in two dimensions
Ulrich K. Beckering Vinckers, Álvaro de la Cruz-Dombriz, Ivan Kolář +2
We present the ghost-free infinite-derivative extensions of the Spherically-Reduced Gravity (SRG) and Callan-Giddings-Harvey-Strominger (CGHS) theories in two space-time dimensions…
Infinite-derivative linearized gravity in convolutional form
Carlos Heredia, Ivan Kolář, Josep Llosa +2
This article aims to transform the infinite-order Lagrangian density for ghost-free infinite-derivative linearized gravity into non-local. To achieve it, we use the theory of gener…
New non-singular cosmological solution of non-local gravity
Ivan Kolář, Francisco José Maldonado Torralba, Anupam Mazumdar
We present a new bouncing cosmological solution of the non-local theory known as infinite derivative gravity, which goes beyond the recursive ansatz, . The n…
Exact gyratons in higher and infinite derivative gravity
Ivan Kolář, Tomáš Málek, Suat Dengiz +1
We study solutions describing spinning null sources called gyratons in generic theories of gravity with terms that are quadratic in curvature and contain an arbitrary number of cov…
Non-locality and gravitoelectromagnetic duality
Jens Boos, Ivan Kolář
The weak-field Schwarzschild and NUT solutions of general relativity are gravitoelectromagnetically dual to each other, except on the positive -axis. The presence of non-localit…
Exact solutions of non-local gravity in a class of almost universal spacetimes
Ivan Kolář, Tomáš Málek, Anupam Mazumdar
We study exact solutions of the infinite derivative gravity with null radiation which belong to the class of almost universal Weyl type III/N Kundt spacetimes. This class is define…