Summation Formulas of Arithmetic Functions

This lecture covers the application of the method of convolution, the Dirichlet hyperbola method, and the 'large value' of the divisor function tau(n). The slides discuss the existence of a constant Cxo in the error term for the sum of the divisor function, the method of convolution, and the interchange of the order of sum. The lecture also explores the Dirichlet hyperbola method and its application in obtaining a good error term for the sum of the divisor function. Additionally, it delves into the large value of the divisor function tau(n) and the application of the same method to other arithmetic functions.