Homological algebra and module theory constitute a vibrant area of contemporary mathematics, interweaving concepts from algebra, topology and geometry. At its core, homological algebra studies chain ...

1 School of Mathematics, Shanghai University of Finance and Economics, Shanghai, China. The category of left -comodule is denoted by. For more about modules and comodules, see [1] -[3] . (a1) is a ...

Department of Mathematics, Hefei University of Technology, Hefei 230009, China Wu Wen-Tsun Key Laboratory of Mathematics, University of Science and Technology of China, Hefei 230026, China ...

Algebra and calculus are essential branches of mathematics and for most students are the main areas of maths they have seen at high school. Algebra involves manipulating expressions and solving ...

Linear algebra is one of the most powerful branches of mathematics – and one of the most useful. It is at the heart of modern science, technology, and engineering. It is the foundation for everything ...

A linear algebra module for racket (written before I realized Racket implements one in its math library). I implemented this while planning the review session for Math 136 and used it as a quick way ...