@Article{, title={The Brauer trees of the symmetric group S21 modulo P=13 ﺷﺠﺮات ﺑﺮاور ﻟﻠﺰﻣﺮه اﻟﺘﻨﺎظﺮﯾﮫ 21 ﻣﻌﯿﺎرp=13}, author={AbdulKareem A.Yaseen ﺒﺪاﻟﻜﺮﯾﻢ ﻋﺒﺪاﻟﺮﺣﻤﻦ ﯾﺎﺳﯿﻦ}, journal={Basrah Journal of Science (Bas J Sci) مجلة البصرة للعلوم}, volume={37}, number={1}, pages={126-140}, year={2019}, abstract={The main object of this paper is to find the Brauer Trees of the symmetric group S modulo P 13 which can give the irreducible modular spin characters of which can give the irreducible modular spin characters of

} }