15 citations · 29 across the 7 of their papers we have counts for
8 papers
Constructing strong starters of orders : triplication with SAT solver
Oleg Ogandzhanyants, Sergey Sadov, Margo Kondratieva
A novel approach to building strong starters in cyclic groups of orders divisible by 3 from starters of smaller orders is presented. A strong starter in ( odd) is a pa…
On Products of Strong Skolem Starters
Oleg Ogandzhanyants, Margarita Kondratieva, Nabil Shalaby
In 1991, Shalaby conjectured that any , where or , admits a strong Skolem starter. In 2018, the authors explicitly constructed some…
Strong Skolem Starters
Oleg Ogandzhanyants, Margarita Kondratieva, Nabil Shalaby
This paper concerns a class of combinatorial objects called Skolem starters, and more specifically, strong Skolem starters, which are generated by Skolem sequences. In 1991, Shalab…
On the notion of quantum Lyapunov exponent
M. F. Kondratieva, T. A. Osborn
Classical chaos refers to the property of trajectories to diverge exponentially as time tends to infinity. It is characterized by a positive Lyapunov exponent. There are many diffe…
Numerical study of high frequency asymptotics of the symbol of the Dirichlet-to-Neumann operator in 2D diffraction problems
Margo Kondratieva, Sergey Sadov
A high-frequency asymptotics of the symbol of the Dirichlet-to-Neumann map, treated as a periodic pseudodifferential operator, in 2D diffraction problems is discussed. Numerical re…
Two-system of a Hamiltonian system
M. F. Kondratieva, S. Yu. Sadov
For a Hamiltonian system in R^{2n}, its two-system is defined in the phase space R^{2n} x sp(2n,R). In a sense, it is a combination of the original system and its system in variati…