MATH
functional analysis
Shapiro - Functional Analysis Lecture Notes
Reed & Simon - Methods of Modern Mathematics I: Functional Analysis
Rudin - Functional Analysis
Aliprantis & Border - Infinite-Dimensional Analysis: A Hitchhiker's Guide
Conway - A Course in Functional Analysis
Oxtoby - Measure and Category
Rordam - An Introduction to K-Theory for C* Algebras
Jaksic - Topics in Spectral Theory
Szego - Orthogonal Polynomials
GMT and geometry
Heinonen - Nonsmooth Calculus
Krantz & Parks - Geometric Integration Theory
Robinson - Dimensions, Embeddings, & Attractors
Adler & Taylor - Random Fields and Geometry
Simon - Introduction to Geometric Measure Theory
Evans & Gareipy - Measure Theory and Fine Properties of Functions
Vakil - The Rising Sea: Foundations of Algebraic Geometry
Camillo - Lecture Notes on Rectifiable Sets, Densities, and Tangent Measures
"An introduction to infinite-dimensional differential geometry"
- A. Schmeding
probability theory
Van Handel - Probability in High Dimension
Klenke - Probability Theory: A Comprehensive Course
Kemp - Random Matrix Theory
Kallenberg - Foundations of Modern Probability
convex analysis
Bauschke - Convex Analysis
algebraic things
Judson - Abstract Algebra: Theory and Applications
Ghrist - Elementary Applied Topology
PHYSICS
Hall - Quantum Theory for Mathematicians
Cheung - Phase Transitions and Collective Phenomena
Tong - Statistical Field Theory
COMPUTER SCIENCE
Boumal - An introduction to optimization on smooth manifolds
Hanin, Roberts, Yaida - The Principles of Deep Learning Theory
Telgarsky - Deep Learning Theory
Baserville - Random Matrix Theory and the Loss Surfaces of Neural Networks
Hazan & Singh - Online Nonstochastic Control
Hazan - Online Convex Optimization