For over two millennia, mathematicians agreed on one thing: you can’t use trigonometry to prove Pythagoras’ Theorem—because trigonometry is built on it. That logic, drilled into students and scholars ...

Dr. JeFreda R. Brown is a financial consultant, Certified Financial Education Instructor, and researcher who has assisted thousands of clients over a more than two-decade career. She is the CEO of ...

This is a preview. Log in through your library . Abstract We prove that if $G$ is a semisimple Lie group without compact factors, then for all open sets $U \subset G ...

Ask someone to name the most important physicist of the 20 th century, and they will almost certainly say Albert Einstein. Ask the same question about the field of mathematics, however, and you will ...