234 citations · 2.3k across the 73 of their papers we have counts for
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Exact Solutions in Nonlocal Linear Models
S. Yu. Vernov
A general class of cosmological models driven by a nonlocal scalar field inspired by the string field theory is studied. Using the fact that the considering linear nonlocal model i…
Construction of Exact Solutions in Two-Fields Models and the Crossing of the Cosmological Constant Barrier
S. Yu. Vernov
A dark energy model with a phantom scalar field, an usual scalar field and the string field theory inspired polynomial potential has been constructed. A two-parameter set of exact…
Crossing of the w=-1 Barrier by D3-brane Dark Energy Model
I. Ya. Aref'eva, A. S. Koshelev, S. Yu. Vernov
We explore a possibility for the Universe to cross the w=-1 cosmological constant barrier for the dark energy state parameter. We consider the Universe as a slowly decaying D3-bran…
Stringy Dark Energy Model with Cold Dark Matter
I. Ya. Aref'eva, A. S. Koshelev, S. Yu. Vernov
Cosmological consequences of adding the Cold Dark Matter (CDM) to the exactly solvable stringy Dark Energy (DE) model are investigated. The model is motivated by the consideration…
Construction of Special Solutions for Nonintegrable Systems
S. Yu. Vernov
The Painleve test is very useful to construct not only the Laurent series solutions of systems of nonlinear ordinary differential equations but also the elliptic and trigonometric…
Exactly Solvable SFT Inspired Phantom Model
I. Ya. Aref'eva, A. S. Koshelev, S. Yu. Vernov
An exact solution to the Friedmann equations with a string inspired phantom scalar matter field is constructed and the absence of the "Big Rip" singularity is shown explicitly. The…