This research was motivated by design problems in queueing theory where the objective function is composed of a discrete variable and a continuous variable. Sufficient conditions are developed such ...

Sometimes we create data without even realizing it — sending a text message, posting a photo on Instagram or just browsing through various websites To put a number on it, in 2020, people generated 2.5 ...

Forbes contributors publish independent expert analyses and insights. The Universe is out there, waiting for you to discover it. If you want to learn what the Universe is made out of at a fundamental ...