3 papers
math.CO2020
Super-simple directed designs and their smallest defining sets with its application in LDPC codes
M. Mohammadnezhad, S. Golalizadeh, M. Boostan +1
In this paper, we show that for all (mod 5) and , there exists a super-simple directed design, also for these parameters there exists a super-simp…
math.CO2019
The minimum possible volume size of u-way (v, k, t) trades
Somayyeh Golalizadeh, Nasrin Soltankhah
A u-way (v; k; t) trade is a pair T = (X; T_1; T2,...,T_u) such that for each t-subset of v-set X the number of blocks containing this t-subset is the same in each Ti (1 <= i <=u).…
math.CO2015
Super-simple (v, 4, 2) directed designs and a lower bound for the minimum size of their defining set
M. Boostan, S. Golalizadeh, N. Soltankhah
In this paper, we show that for all v\pmod 1 (mod 3), there exists a super- simple (v, 4, 2) directed design. Also, we show that for these parameters there exists a super-simple (v…