Abstract: This article introduces, models, and solves the time-dependent in-building delivery problem in last-mile logistics. It determines efficient travel sequences for a worker (e.g., delivery ...

More than a half century later, the decision not only has a trail of mathematics accomplishments, but also recently led the Distinguished Professor in the Department of Mathematics to win the 2026 ...

Tao: Today there are a lot of very tedious types of mathematics that we don’t like doing, so we look for clever ways to get ...

Abstract: This paper proposes the concept of the rotated quaternion valued algebra and its application to the human signal processing. The conventional quaternion valued number consists of three pure ...

This story was originally published by CalMatters. Sign up for their newsletters. Guest Commentary written by Dr. Brian Park Dr. Brian Park is president of the California Optometric Association Ted ...

George Pólya’s random walk theorem absolved him of being a lurker and revealed how the laws of chance interact with physical ...

Mathematicians from the California Institute of Technology have solved an old problem related to a mathematical process called a random walk.

Add Yahoo as a preferred source to see more of our stories on Google. “This editorial board has long supported marijuana legalization. In 2014, we published a six-part series that compared the federal ...

This highlights the reality of time blindness with ADHD, where upcoming plans can take over your entire day, productivity disappears while waiting, and the constant fear of being late can lead to ...

The New York Times editorial board walked back its yearslong support for marijuana legalization in a Monday editorial, writing that the U.S. “has recently gone too far in accepting and even promoting ...

The editorial board is a group of opinion journalists whose views are informed by expertise, research, debate and certain longstanding values. It is separate from the newsroom. Thirteen years ago, no ...