Sharif University of Technology Scientia Iranica 1026-3098 28 2 2021 04 01 T -spherical fuzzy soft sets and its aggregation operators with application in decision-making 1014 1029 21477 10.24200/sci.2019.53027.3018 EN A. Guleria Department of Mathematics, Jaypee University of Information Technology, Waknaghat, Solan, Pin-173 234, Himachal Pradesh, India 0000-0001-8756-0833 R. K. Bajaj Department of Mathematics, Jaypee University of Information Technology, Waknaghat, Solan, Pin-173 234, Himachal Pradesh, India 0000-0002-9312-0866 Journal Article 2019 02 25 In the present manuscript, we introduce a novel concept of T-spherical fuzzy soft set with various important operations and properties. In the field of information theory, an aggregation operator is a structured mathematical function which aggregates all the information received as input and provides a single output entity, which are found to be applicable for various important decision making applications. Some averaging aggregation operators and geometric aggregation operators (weighted, ordered and hybrid) for T-spherical fuzzy soft numbers have been proposed with their various properties. Further, utilizing the proposed aggregation operators of various types along with the properly defined score function/accuracy function, an algorithm for solving a decision making problem has been provided. The proposed methodology has also been well illustrated with the help of a numerical example. Some comparative remarks and advantages of the introduced notion of T-spherical fuzzy soft set and the proposed methodology have been listed for a better motivation and readability. https://scientiairanica.sharif.edu/article_21477_ee2584054b4963d51cf5e2387604cd86.pdf