In this paper, we consider the strong instability of standing waves for the Hartree equation with a constant magnetic field.

The prime number theorem, how a simple formula predicts the unpredictable Hidden inside the seemingly random scatter of prime numbers is a precise, elegant law connecting them to the natural logarithm ...

Learn about the Pythagorean theorem. The Pythagoras theorem is a fundamental relation among the three sides of a right triangle. It is used to determine the missing length of a right triangle. The ...

As one of the most heavily regulated foods on the market, infant formula is subject to strict nutrition guidelines and undergoes rigorous safety and quality testing. But CR’s tests of infant formula ...

More than 100 years ago Hungarian-born mathematician George Pólya found himself trapped in a loop of social awkwardness. A professor at the Swiss Federal Institute of Technology Zurich, he enjoyed ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

What to Know If You Have to Switch Infant Formula When you’re considering making the switch to a new infant formula, it’s good to know that all infant formula sold in the U.S. is tightly regulated and ...

In the fall of 1915, the foundations of physics began to crack. Einstein’s new theory of gravity seemed to imply that it should be possible to create and destroy energy, a result that threatened to ...

When working with large datasets in Excel, the performance of formulas plays a critical role in determining calculation speed and overall efficiency. Understanding which formulas perform best and how ...

In 2022, two high school students created a trigonometric proof of the Pythagorean Theorem—something that’s only ever been accomplished by a few professional mathematicians. Now, a new article not ...