The accelerating expansion of the universe is usually explained by an invisible force known as dark energy. But a new study ...

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Abstract: This paper addresses the resilient leader-follower consensus problem for discrete-time high-order multi-agent systems with time-varying graphs. A resilient control law is proposed for each ...

Abstract: This paper investigates the prescribed-time tracking synchronization (PTS) of high-dimensional heterogeneous Kuramoto oscillator networks on the unit sphere. Depending on whether the ...

Elysse Bell is a finance and business writer for Investopedia. She writes about small business, personal finance, technology, and more. Erika Rasure is globally-recognized as a leading consumer ...

When the sun rises on May 18 in the small Norwegian fishing village of Sommarøy, located above the Arctic Circle, it doesn’t set again until July 26. Later in the year, it vanishes from November until ...