Representation theory studies the ways in which abstract algebraic objects—groups, rings, algebras and categories—can act by linear transformations on vector spaces or modules. By encoding an ...

The human ecosystem is made of open and closed systems. While the earth is a closed system for matter but an open system for energy, the human body is considered an open system. There is a growing ...

"In the preparation of this book the senior author's earlier Russian book ("Theory of structures,' by S. Timoshenko, 2d ed., St. Petersburg, 1926) was extensively used."--Pref.

String theory began over 50 years ago as a way to understand the strong nuclear force. Since then, it’s grown to become a theory of everything, capable of explaining the nature of every particle, ...

Albert Einstein is known for his haircut, theories of relativity and belief that “the fact that [the physical world] is comprehensible is a miracle.” What he meant was that via science, math and our ...