| Ikeda, Nobuyuki | Stochastic Differential Equations and Diffusion Processes | 60 Probability theory and stochastic processes |
| Imrich, Wilfried | Topics in Graph Theory: Graphs and Their Cartesian Product | 05 Combinatorics |
| Ince, E | Ordinary Differential Equations | 34 Ordinary differential equations |
| Isaacson, Eugene | Analysis of Numerical Methods | 65 Numerical analysis |
| Ito, K. | Lectures on Stochastic Processes | 60 Probability theory and stochastic processes |
| Ito, Kiyosi | Encyclopedic Dictionary of Mathematics, Second Edition | 00 General and overarching topics; collections |
| Itô, Kiyosi | Foundations of Stochastic Differential Equations in Infinite Dimensional Spaces | 60 Probability theory and stochastic processes |