We hereby review a class of quantum gravitational theories based on weakly nonlocal
analytic classical actions. The most general action is characterized by two nonpolynomial …

The dawn of the twenty-first century came with very positive prospects for gravity, cosmology,
and astrophysics. Technological progress made it possible for cosmology to enter to its …

Abstract The Event Horizon Telescope (EHT) Collaboration recently published the first
images of the supermassive black holes in the cores of the Messier 87 and Milky Way …

We discuss static spherically symmetric metrics which represent nonsingular black holes in
four-and higher-dimensional spacetime. We impose a set of restrictions, such as a regularity …

This study focuses on investigating a regular black hole within the framework of Verlinde's
emergent gravity. In particular, we explore the main aspects of the modified Simpson–Visser …

This work focuses on the examination of a regular black hole within Verlinde's emergent
gravity, specifically investigating the Hayward-like (modified) solution. The study reveals the …

In this paper we will show all the linearized curvature tensors in the infinite derivative ghost
and singularity free theory of gravity in the static limit. We have found that in the region of …

We suggest and briefly review a new sort of superrenormalizable models of higher
derivative quantum gravity. The higher derivative terms in the action can be introduced in …

A bstract The R+ R 2, shortly named “R 2”(“Starobinsky”) inflationary model, represents a
fully consistent example of a one-parameter inflationary scenario. This model has a “graceful …

We propose a class of multidimensional higher derivative theories of gravity without extra
real degrees of freedom besides the graviton field. The propagator shows up the usual real …