# Algebra

- 1
- Abstract Algebra
- Page http://www.maths.tcd.ie/~dwilkins/Courses/311/
- Lecture notes by David Wilkins, Trinity College, Dublin. Topics in Number Theory; Group Theory; Galois Theory.

- 2
- Abstract Algebra Online
- Page http://www.math.niu.edu/~beachy/aaol/
- Contains many of the definitions and theorems from the area of mathematics generally called abstract algebra. Intended for undergraduate students taking an abstract algebra class at the junior/senior level, as well as for students taking their first graduate algebra course.

- 3
- Abstract and Linear Algebra
- Page http://www.math.miami.edu/forum/algebra/
- A forum for students on abstract algebra and linear algebra.

- 4
- Center for Commutative Algebra
- Page http://www.commalg.org/
- A site for the commutative algebra community, including news, conference and preprint announcements, and a huge list of algebraists.

- 5
- Cohomology of Modules over the Mod 2 Steenrod Algebra
- Page http://www.math.wayne.edu/~rrb/cohom/
- Robert R. Bruner, Wayne State University. Tables in PS or GIF formats.

- 6
- Dave's Short Course on Complex Numbers
- Page http://www.clarku.edu/~djoyce/complex/
- An introduction with math and a little history intended for those having a familiarity with ordinary real numbers and algebra.

- 7
- Home Page of J. S. Milne
- Page http://www.jmilne.org/math/
- Includes preprints and course notes on Group Theory, Fields and Galois Theory, Algebraic Geometry, Algebraic Number Theory,Modular Functions and Modular Forms, Elliptic Curves, Abelian Varieties, Etale Cohomology, and Class Field Theory.

- 8
- Homogeneous Transformation Matrices
- Page http://www.silcom.com/~barnowl/HTransf.htm
- Explicit n-dimensional homogeneous matrices for projection, dilation, reflection, shear, strain, rotation and other familiar transformations.

- 9
- Intro to Abstract Algebra
- Page http://www.math.umn.edu/~garrett/m/intro_algebra/
- Paul Garrett's detailed and comprehensive lecture notes in abstract algebra.

- 10
- Lecture Notes in Algebra and Number Theory
- Page http://www.maths.gla.ac.uk/~ajb/course-notes.html
- Andrew Baker, University of Glasgow.

- 11
- Mileski Theorem
- Page http://mileski-theorem.tripod.com/
- A new mathematical theorem proposed by Robert Mileski.

- 12
- Octonions and Sedenions
- Page http://octonions-sedenions.tripod.com/
- Enter the world of 8 and 16 dimensional hypercomplex numbers and discover that the laws that are taken for granted, but do not always hold true.

- 13
- Robbins Algebras Are Boolean
- Page http://www.cs.unm.edu/~mccune/papers/robbins/
- A web text by William McCune describing the solution of this problem by a theorem-proving program, with input files and the proofs.

- 14
- VectorLand
- Page http://members.tripod.com/~Paul_Kirby/vector/VectorLand.html
- An online course to get to grips with 3D vectors. Most of the material is about UK A-level difficulty.

- 15
- Algebra - Mathematical Abstraction from Concrete Experience
- Page http://www.newbanner.com/CEL/Math/algebra2.htm
- An explanation of how the Montessori student learns algebra while interacting with manipulatives, physical objects, represented by expressions incorporating the numerals and variables of mathematics.

- 16
- Algebra - One On One
- Page http://www.sheppardsoftware.com/algebra1.htm
- An educational game for those wanting a fun way to learn and practice algebra.

- 17
- Algebra Lessons
- Page http://www.lessontutor.com/ltalgebra9home.html
- Introduction to basic concepts of algebra: the lesson, an assignment, answer key.

- 18
- Algebra Online Learning Sites
- Page http://jessicamath.tripod.com/
- Algebra and math site links in a table to help you find various math subjects from algebra to calculus, algebra games to quizzes.