Abstract: Stepwise controllable devices, such as switched capacitors or stepwise controllable loads and generators, transform the nonconvex AC optimal power flow (AC-OPF) problem into a nonconvex ...

Let’s keep things simple – this is basic math. Nothing scary. Just everyday calculations, a bit of geometry, some number patterns, and the kind of stuff you definitely learned in school at some point.

As tax season dawns, backlash to a nationwide surge in property-tax bills is spurring states to double down on proposals to diminish one of the main revenue sources for school districts. And that ...

Steven Bouma-Prediger seldom sees students walking between classes without their faces buried in their smartphones. This distraction transfers into the classroom, where Bouma-Prediger takes matters ...

Mathematics, like many other scientific endeavors, is increasingly using artificial intelligence. Of course, math is the backbone of AI, but mathematicians are also turning to these tools for tasks ...

An error has occurred. Please try again. With a The Portland Press Herald subscription, you can gift 5 articles each month. It looks like you do not have any active ...

This paper proposes an exact method to solve an integer indefinite quadratic bilevel problem with multiple objectives at the upper level, where the objective functions at both levels are a product of ...

Amateur mathematicians are using artificial intelligence chatbots to solve long-standing problems, in a move that has taken professionals by surprise. While the problems in question aren’t the most ...

Wikipedia has recently come under the microscope. I take some credit for this, as the co-founder of Wikipedia and a vocal critic of the knowledge platform for a long time. In September, I nailed ...

This is what CES is really all about. Not just massive booths and headline-grabbing announcements, but smaller companies with big ideas. They’re all on display at one of my favorite CES events, Pepcom ...

Imagine Jo: Everyone in Jo's life recognizes her as an outstanding problem solver. She's the type of person who seems capable of almost anything. Jo excels at intuitive problem-solving. Over her life, ...

Artificial intelligence is transforming how we cure disease, defend nations, and deliver goods. But the same technology driving this surge of innovation is also testing the limits of the system that ...