29 citations · 367 across the 66 of their papers we have counts for
15 papers · 1 filter
Brownian markets
R. Tsekov
Financial market dynamics is rigorously studied via the exact generalized Langevin equation. Assuming market Brownian self-similarity, the market return rate memory and autocorrela…
Where is liquid-vapor interface located in solutions?
R. Tsekov, B. Cohen, B. Radoev +1
Two-component liquid-vapor systems are modeled as two bulk phases divided by a two-dimensional surface phase and the mass and momentum balances are theoretically studied. Comparing…
Transport coefficients in composites
K. Dimitrov, B. Radoev, R. Tsekov
The Maxwell approach from electrostatics is applied for calculation of transport coefficients in composites. The viscosity of a dilute emulsion is obtained as a function of the vol…
Resonant diffusion on solid surfaces
Roumen Tsekov
A new approach to Brownian motion of atomic clusters on solid surfaces is developed. The main topic discussed is the dependence of the diffusion coefficient on the fit between the…
Drainage of foam films
Roumen Tsekov
A brief review of the classical theory of foam film drainage is presented as well as a new theory accounting for the effect of thickness non-homogeneities in the film developed by…
On the rheology of a liquid-vapor interface
Roumen Tsekov, Boryan Radoev
The mass and momentum balances are theoretically studied in heterogeneous two-component systems. Following Gibbs the system is presented as two bulk and a single surface phases. Co…