activity
20242026
collaborators

10 papers

q-fin.ST2026

What Makes a Peer? Valuation-Anchored Similarity in Private Markets

Sebastian Frank, Jingrao Lyu, Max Jarmey +5

As more investors contemplate private markets and contend with limited transparency, sparse disclosures, and infrequent transactions, identifying economically meaningful peer compa…

gr-qc2026

Modified Double Copy for Quasitopological Gravity with Matter

Valeri P. Frolov

We extend the modified double-copy construction to quasitopological gravity (QTG) coupled to matter. Spherically symmetric QTG solutions in dimensions are generated from an aux…

gr-qc2026

Charged Black Holes in Quasi-Topological Gravity Coupled to Born-Infeld Nonlinear Electrodynamics

Jose Pinedo Soto, Valeri P. Frolov

We construct static, spherically symmetric black hole solutions in quasi-topological gravity (QTG) coupled to Born-Infeld nonlinear electrodynamics. Starting from the spherically r…

gr-qc2026

Quasitopological gravity and double-copy formalism

Valeri P. Frolov

We propose a new approach to the quasitopological theory of gravity based on a modified classical double--copy construction. Focusing on static, spherically symmetric configuration…

gr-qc2025

Spinoptics in the Kerr Spacetime: Polarized Wave Scattering

Valeri P. Frolov, Alex Koek

We study propagation of high-frequency electromagnetic and gravitational waves in the gravitational field of a rotating black hole. Due to the interaction of the spin of the field…

gr-qc2025

Regular black holes inspired by quasi-topological gravity

Valeri P. Frolov, Alex Koek, Jose Pinedo Soto +1

Recently it was demonstrated that by adding to the Einstein-Hilbert action a series in powers of the curvature invariants with specially chosen coefficients one can obtain a theory…