Dynamics
- Mechanism of the Heavens (1831), by Mary Somerville by Russell McNeil
- Dynamical Systems by George D. Birkhoff
- Dynamics in One Complex Variable: Introductory Lectures by John Milnor
- Geometrical theory of dynamical systems by Nils Berglun
- Introduction to Statics and Dynamics by Andy Ruina, and Rudra Pratap
Entropy
- Entropy on the World Wide Web
- Entropy of Compact Group Automorphisms by Thomas Ward
- Valuations and Hyperbolicity in Dynamics by Thomas Ward
- Effective Hamiltonians and averaging for Hamiltonian dynamics by Lawrence Craig Evans
- Entropy and Partial Differential Equations by Lawrence Craig Evans
- CLASSICAL AND QUANTUM CHAOS by Predrag Cvitanovic', Roberto Artuso, Ronnie Mainieri, Gregor Tanner, Gábor Vattay, Niall Whelan, and Andreas Wirzba
- Dynamical systems by Shlomo Sternberg
Quantum Mechanics
- Mathematical Methods in Quantum Mechanics by Gerald Teschl
- Quantum Mechanics by Klaus Schulten
- Foundations of Quantum Mechanics & Quantum Information by M.B. Plenio
- Quantum Geometry and more by Micho Durdevich
- Quantum Probability Theory by Miklos Redei, and Stephen J. Summers
Quantum Field Theory
- Comprehensive textbook on quantum (and classical) field theory by Warren Siegel
- Quantum Field Theory by Ben Simons
- Mathematical ideas and notions of quantum field theory by Pavel Etingof
- Introduction to Algebraic and Constructive Quantum Field Theory by Irving E. Segal, Zhengfang Zhou, and John C. Baez
- Quantum Field Theory program at IAS by Irving E. Segal, Zhengfang Zhou, and John C. Baez
- Graduate textbooks: Field Theory, Relativity, Superspace, Strings by Warren Siegel
- What is String Theory by Joseph Polchinski
- Fluctuating Geometries in Statistical Mechanics and Field Theory
- Operator Algebras and Quantum Statistical Mechanics, Vol I by Ola Bratteli
- Operator Algebras and Quantum Statistical Mechanics, Vol II by Ola Bratteli
- D-Brane Primer by Clifford V. Johnson
- Introduction to Superstring Theory by Elias Kiritsis
- Algebraic Quantum Field Theory by Hans Halvorson, and Michael Mueger
Condensed Matter
- Worked examples in the Geometry of Crystals by HKDH Bhadeshia
- Introduction to Solid-State Physics; Many-Body Theory by Chetan Nayak
- Many-Body Physics by Piers Coleman
- Theory of Superconductivity by Helmut Eschrig
- High-Temperature Superconductivity by Peter Hirschfeld
- Solid State Physics by Peter Hirschfeld
- Complex Surphaces in Materials Science
Special and General Relativity
- General Relativity, Nonlinear PDEs, etc by Sergiu Klainerman
- Special Relativity and Geometry by C. E. Harle, and R. Bianconi
- Differential Geometry (and Relativity) by Bob Gardner
- General Relativity and Quantum Cosmology by Sean M. Carroll
- Public lectures by Stephen Hawking and Roger Penrose
Physics
- Essential Physics 1 by Frank Firk
- Introduction to Groups, Invariants & Particles by Frank W.K. Firk
- Classical Electrodynamics by Bo Thidé
- Classical electrodynamics and theory of relativity by Ruslan Sharipov
- Electromagnetic Theory and Computation: A Topological Approach by Paul W. Gross, and P. Robert Kotiuga
- MOTION MOUNTAIN TEXTBOOK Hiking beyond space and time along the concepts of modern physics by Christoph Schiller
- Fundamentals of Thermodynamics by J. Karl Johnson
- Non-Equilibrium Statistical Mechanics by Klaus Schulten
- Course in Electrodynamics by Franz Wegner
- Light and Matter by Ben Crowell
- Order-of-magnitude-physics by Sanjoy Mahajan
- Physical Applications of Geometric Algebra by Anthony Lasenby, and Chris Doran
- Group Theory: Lie's, Tracks, And Exceptional Groups by Predrag Cvitanovic'
- An Elementary Introduction to Groups and Representations by Brian C. Hall
- Geometric Models for Noncommutative Algebras by A. Cannas da Silva, and A. Weinstein
- Differential Forms in Electromagnetic Theory by Richard H. Selfridge, David V. Arnold, and Karl F. Warnick
- Lectures on integration of several variables by Michael Adler
- Methods of Mathematical Physics by Mark Trodden
- Further Mathematical Methods by Niels Walet
- Computational Physics by Angus MacKinnon
- Zeno meets modern science by Zurab K. Silagadze
- Feynman's derivation of Maxwell equations and extra dimensions by Zurab K. Silagadze
- TeV scale gravity, mirror universe, and ... dinosaurs by Zurab K. Silagadze
- Quick introduction to tensor analysis by Ruslan Sharipov
- Traveling Wave Solutions of Parabolic Systems by Aizik I. Volpert, Vitaly A. Volpert, and Vladimir A. Volpert
