- On Mathematics, Mathematical Physics, Truth and Reality - How mathematics exists in the universe and is related to physical reality.
- Dimensional Analysis - A simple review of the powerful technique of dimensional analysis.
- Klaus Brauer's Soliton Page - Presents a history of J.S.Russell's discovery of solitary waves, and animations of one-, two- and three-soliton solutions to the Korteweg-de Vries equation. Includes an article in PDF format on finding exact solutions to the KdV equation using the method of Backlund transform with the help of Mathematica.
- Mathematical Methods I - This site contains the complete lecture notes and homework sets for PHYCS498MMA, a course of mathematical methods for physics given to entering graduate students, and senior undergraduates, at the University of Illinois at Urbana-Champaign.
- Doing Physics with Quaternions - A research effort to see how much of standard physics can be done using only quaternions, a 4-dimensional division algebra.
- Discrete Self-trapping Equation - A bibliography in BibTeX format for those interested in discrete nonlinear Schrödinger type equations.
- Period and Energy in One Degree of Freedom Systems - An article by Jorge Rezende, University of Lisbon. [PDF]
- This Week's Finds in Mathematical Physics - This is a column written about modern topics in mathematical physics.
- Twistors: What Are They? - A set of notes introducing spinors and twistors.
- Holomorphic Methods in Mathematical Physics - This set of lecture notes by Brian C. Hall gives an introduction to holomorphic function spaces as used in mathematical physics. The emphasis is on the Segal-Bargmann space and the canonical commutation relations.
- Journal on Applied Clifford Algebra - Journal devoted to the development of Geometric Analysis in particular through the use of Clifford Algebras, Quaternions, Hypercomplex Analysis and Multivector Techniques. Main emphasis on the applications to Physics.
- Lectures on Orientifolds and Duality - Notes by Atish Dabholkar on orientifolds emphasizing applications to duality.
- On the Origins of Twister Theory - A new approach pioneered by Roger Penrose, starting with conformally-invariant concepts, to the synthesis of quantum theory and relativity.
- Homological Methods in Mathematical Physics - These lecture notes by Joseph Krasil'shchik and Alexander Verbovetsky are a systematic and self-contained exposition of the cohomological theories naturally related to partial differential equations.
- The Dirac Delta Function - A brief introduction to the properties and uses of the Dirac delta function. [PDF]
- Recent Developments in Skyrme Models - An introduction by T. Gisiger and M.B. Paranjape to recent, more mathematical developments in the Skyrme model. The aim is to render these advances accessible to mainstream nuclear and particle physicists.
- Local Quantum Physics Crossroads - An international forum for information exchange among scientists working on mathematical, conceptual, and constructive problems in local relativistic quantum physics (LQP).
- An Introduction to Noncommutative Geometry - A set of lecture notes by Joseph C. Varilly on noncommutative geometry and its applications in physics.
- Solitons - Resources at Heriot-Watt University. Meetings, local and other links.
- Euclidean Geometric Transforms for Physics - A new method of correlating physics formulas to derive one formula from a related formula using Euclidean geometry to represent the inter-relationship of physics formulas.
- Geometry and Duality - Lecture notes from the ITP miniprogram on Geometry and Duality
- Non Commutative Geometry - Preprints of Alejandro Rivero about Connes's NCG and the Standard Model. Also some historical articles on related topics.
- Differential Equations and Oscillations - Many problems in physics are described by differential equations. As a complete discussion of differential equations is beyond the scope of this chapter we will deal only with linear first and second order ordinary differential equations.
- Symplectic Geometries in Quantum Physics and Optics - A comparison of symplectic geometry with Euclidean or unitary geometries in quantum physics and optics
- Intrinsic Localized Modes - Dynamics of defect-free periodic lattices in terms of plane wave phonons. Web text by Albert J. Sievers, Cornell.
- Topology and Physics - An essay by C. Nash on the historical connection between topology and physics.
- Inexplicable Secrets of Creation - Relationships between number theory and physics.
- Five Lectures on Soliton Equations - A self-contained review by Edward Frenkel of a new approach to soliton equations of KdV type.
- Commutative Hypercomplex Mathematics - A commutative algebra, function theory, and system of analysis is developed for one 4-D variable (not quaternions). It is based upon a commutative group ring and extends all of the properties of the classical complex variables.
- Complex Geometry of Nature and General Relativity - A paper by Giampiero Esposito attempting to give a self-contained introduction to holomorphic ideas in general relativity. The main topics are complex manifolds, spinor and twistor methods, heaven spaces.
- Non Deterministic Approaches - NDAPortal.com is a free online repository and community dealing with uncertainty and variability in applied mechanics and engineering that explains the application of probabilistic and possibilistic methods in engineering projects.
- Solitons - An overview of the classical and quantum theory related to solitons
- Open Problems in Mathematics and Physics - Links to open problems in mathematics, physics and other subjects.
- Mathematical Physics - Numerical codes are provided for a variety of problems. From the University of Puerto Rico at Humacao.
- Three Body Problem - A class of problems in classical or quantum mechanics that model the motion of three particles.
- (UK) North British Mathematical Physics Seminar - Four seminars are held in rotation every year.
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- Geometric Algebra@ (7)
- Fluid Mechanics and Dynamics@ (184)