When Bugs on a Circle Choose Chaos or Order

The Dance of Pursuit: A New Twist on an Old Problem Imagine a game of relentless pursuit, but instead of sprawling across a vast landscape, the chase unfolds on the confined perimeter of a circle. This is the intriguing premise of a new study from researchers at an unnamed university, which generalizes the classic “Four…

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Solving a 7-adic Puzzle: Unraveling the Secrets of Elliptic Curves

Unlocking the Mysteries of Elliptic Curves Elliptic curves, deceptively simple-looking equations that define beautiful, twisting shapes, are central to number theory. They possess a rich and complex structure, with connections to seemingly unrelated areas of mathematics. Understanding these curves better has profound implications, from cryptography to our understanding of the fundamental building blocks of numbers…

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A Grid That Shields AI Training From Silent Errors

The Quiet Danger Lurking in Large-Scale AI Training In the roar of modern AI training, a ghost quietly undermines accuracy. As researchers push the boundaries of model size and speed, they train on distributed hardware that spans data centers and cloud clusters. The real work happens in matrices: billions of numbers multiplied, added, and transformed…

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When Friends Vanish: Can AI Still Learn Together?

Imagine a group project where one member suddenly disappears, taking their notes and expertise with them. That’s the challenge facing decentralized federated learning (DFL) when a client drops out permanently. DFL is a cutting-edge AI technique where multiple devices (like smartphones or sensors) collaborate to train a machine learning model without sharing their raw data…

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A Sea of Light Rings Hidden in Spacetime

Space near the most extreme objects in the universe behaves like a carnival mirror: it twists light, stretches time, and turns simple paths into elaborate loops. Around massive, compact bodies, photons can get stuck in orbit, tracing circles that look almost musical in their precision. These light rings, or null circular geodesics, are more than…

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AI’s Secret Weapon: Coded Arms Beat Copycats

The Sneaky World of Secure AI Learning Imagine a world where artificial intelligence learns strategies, not just by trial and error, but by cleverly concealing its discoveries from prying eyes. That’s the core idea behind a groundbreaking new paper from Ben-Gurion University of the Negev and Linköping University, authored by Asaf Cohen and Onur Günlü….

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Satellites Outshine the Night Sky Stirring a Debate

The night sky used to be a shared canvas for stargazers, poets, and researchers alike—an emptiness that didn’t compete with the day’s signal but whispered with the faint light of distant suns. Then came the constellation town square: thousands of artificial lights stitched into orbit, looping above our heads like a swarm of neon fireflies….

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Ghostly Echoes: Pulsar Data Hunt for Interstellar Ghosts

The universe whispers secrets in the language of gravity. For years, scientists have listened intently, using pulsars – cosmic lighthouses with incredibly precise timing – as gravitational wave detectors. But the NANOGrav collaboration, a group of researchers at institutions across North America, has taken this listening to a new level. Their fifteen-year dataset, painstakingly collected…

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