40 citations · 80 across the 7 of their papers we have counts for
7 papers
A Deep Reinforcement Learning Trader without Offline Training
Boian Lazov
In this paper we pursue the question of a fully online trading algorithm (i.e. one that does not need offline training on previously gathered data). For this task we use Double Dee…
Sum of Three Cubes via Optimisation
Boian Lazov, Tsvetan Vetsov
By first solving the equation with fixed for and then considering the distance to the nearest integer function of the result, we turn the sum of three cubes…
Some Order-Theoretic Properties of the Zeros of the Zeta Function
Boian Lazov
The (partially) ordered set of the non-trivial zeros of the zeta function with positive imaginary parts is considered. The order is the coordinatewise order inherited from $\mathbb…
Uniqueness theorem for static phantom wormholes in Einstein-Maxwell-dilaton theory
Boian Lazov, Petya Nedkova, Stoytcho Yazadjiev
We prove a uniqueness theorem for traversable wormhole solutions in the Einstein-Maxwell-dilaton gravity with a phantom scalar field and a possible phantom electromagnetic field. I…
Classification of the static and asymptotically flat Einstein-Maxwell-dilaton spacetimes with a photon sphere
Stoytcho Yazadjiev, Boian Lazov
We consider the problem for the classification of static and asymptotically flat Einstein-Maxwell-dilaton spacetimes with a photon sphere. It is first proven that the photon sphere…
Uniqueness of the static Einstein-Maxwell spacetimes with a photon sphere
Stoytcho Yazadjiev, Boian Lazov
We consider the problem of uniqueness of static and asymptotically flat Einstein-Maxwell spacetimes with a photon sphere . We are using a naturally modified definition of a ph…
Heating of the solar corona by Alfven waves - self-induced opacity
Todor M. Mishonov, Nedeltcho I. Zahariev, Rositsa V. Topchiyska +3
Static distributions of temperature and wind velocity at the transition region are calculated within the framework of magnetohydrodynamics (MHD) of completely ionized hydrogen plas…