Sergey Sadov

collaborators

3 papers

math.CO2026

The triplication method for constructing strong starters

Oleg Ogandzhanyants, Sergey Sadov, Margo Kondratieva

The triplication method for constructing strong starters in $Z_{3 m}$ from starters in $Z_{m}$ (say, a starter of order 21 from a starter of order 7) was proposed by the authors in…

math.CA2025

Around the FejÃ©r-Jackson inequality: Tight bounds for certain oscillatory functions via Laplace transform representations

Sergey Sadov

The error of approximation of the $2 I ¨ $ -periodic sawtooth function $(I ¨ - x) /2$ , $0 \leq x < 2 I ¨ $ , by its $n$ -th Fourier polynomial is shown to be bounded by arccot $((2 n + 1) sin (x /2))$ .…

math.CO2025

Constructing strong starters of orders $3 p$ : triplication with SAT solver

Oleg Ogandzhanyants, Sergey Sadov, Margo Kondratieva

A novel approach to building strong starters in cyclic groups of orders $n$ divisible by 3 from starters of smaller orders is presented. A strong starter in $Z_{n}$ ( $n$ odd) is a pa…

The triplication method for constructing strong starters

Around the FejÃ©r-Jackson inequality: Tight bounds for certain oscillatory functions via Laplace transform representations

Constructing strong starters of orders 3p: triplication with SAT solver

Constructing strong starters of orders $3 p$ : triplication with SAT solver