Hyperbolic Partial Differential Equations and Geometric Optics

Solving Mathematical Problems: A Personal Perspective

Analytic Number Theory: Exploring the Anatomy of Integers

Linear and Quasi-linear Evolution Equations in Hilbert Spaces

Regularity of Free Boundaries in Obstacle-Type Problems

Ordinary Differential Equations: Qualitative Theory

Semiclassical Analysis

Compactness and Contradiction

Knowing the Odds: An Introduction to Probability

What Is Mathematics?: An Elementary Approach to Ideas and Methods, Edition 2

Ordinary Differential Equations and Dynamical Systems

A Course in Abstract Analysis

Basics of Math

Higher Order Fourier Analysis

Lecture Notes on Functional Analysis: With Applications to Linear Partial Differential Equations

Poincare's Legacies, Part II: Pages from Year Two of a Mathematical Blog