Contributions in algebra and algebraic geometry : International Conference Algebra, Discrete Mathematics and Applications, December 9-11, 2017, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad [...] / Shrikrishna G. Dani, Surender K. Jain, Jugal K. Verma, Meenakshi P. Wasadikar, editors. Providence, Rhode Island : American Mathematical Society, 2019