Online books and lecture notes

Some online resources about mathematical structures

Please add links to other resources that you are aware of.

Encyclopedic resources: [On-Line Encyclopedia of Integer Sequences] | [PlanetMath.org] | [Eric Weisstein's World of Mathematics] | [Wikipedia]

Other online resources:

• [arXiv.org e-Print archive]
• [Citeseer: Scientific Literature Digital Library]
• [Keith Kearnes, General Algebra and Lattice Theory] Conferences, contact researcher, mailing list, bibliography,...
• [MacTutor History of Mathematics archive] Biographies of mathematicians, index of famous curves, ...
• [MathSciNet] Mathematical reviews (requires subscription)
• [RelMiCS: Relational Methods in Computer Science] Conferences, tools, mailing list, bibliography,...
• [WikiBooks] Free open content textbooks and other classroom texts
• [Zentralblatt MATH] Reviews of mathematical papers (free queries for  ≤ 3 reviews)

Books and surveys available online:

• Michael Barr and Charles Wells [Triples, Toposes and Theories]
• Wim Blok and Bjarni Jónsson [Algebraic structures for logic (Lecture notes)]
• Peter Burmeister [Lecture Notes on Universal Algebra: Many-sorted partial algebras]
• Peter Burmeister [A Model Theoretic Oriented Approach to Partial Algebras]
• Stanley Burris and H.P. Sankappanavar [A Course in Universal Algebra]
• Ralph Freese and Ralph McKenzie [Commutator Theory for Congruence Modular Varieties]
• Mai Gehrke and Bjarni Jónsson [Bounded Distributive Lattice Expansions]
• Rob Goldblatt [Algebraic Polymodal Logic: A Survey]
• David Hobby and Ralph McKenzie [The structure of finite algebras]
• Peter Jipsen and Henry Rose [Varieties of Lattices]
• Olga Kharlampovich and Mark Sapir [Algorithmic problems in varieties]
• Don Monk [An introduction to cylindric set algebras]
• JB Nation [Notes on Lattice Theory Chapters 1-6] [Chapters 7-12]
• Herbert Wilf [Algorithms and Complexity]