Ashurov, R.; Mukhiddinova, O. of Applied Mathematics Scientific and Practical Conference Karshi State University 24-25 May, 2024 Y. INITIAL-BOUNDARY VALUE PROBLEM ON -DIMENSIONAL TORUS FOR A TIMEFRACTIONAL SUBDIFFUSION EQUATION WITH AN ARBITRARY ELLIPTIC DIFFERENTIAL OPERATOR: Of Applied Mathematics Scientific and Practical Conference Karshi State University 24-25 May, 2024 Y. INITIAL-BOUNDARY VALUE PROBLEM ON -DIMENSIONAL TORUS FOR A TIMEFRACTIONAL SUBDIFFUSION EQUATION WITH AN ARBITRARY ELLIPTIC DIFFERENTIAL OPERATOR. mp 2024, 1.