SMRTR Science & EngineeringMay 5, 2025Quanta Magazine

Dimension 126 Contains Strangely Twisted Shapes, Mathematicians Prove

SMRTR summary

In the realm of mathematics, dimensions have distinct personalities, and the number 126 has just revealed its quirky nature. After a 65-year quest, mathematicians have finally proven that this dimension can host strangely twisted shapes that defy simple transformation into spheres.

"It's like a monumental engineering project," says Michael Hopkins of Harvard University, describing the groundbreaking proof by researchers from Fudan University and UCLA.

This discovery is the latest chapter in a story that began with John Milnor's shocking revelation of "exotic" spheres in the 1950s. Using a technique called "surgery," mathematicians have been exploring which dimensions allow for these peculiar shapes.

The finding not only settles a longstanding puzzle but also connects to fundamental questions in topology about relationships between spheres of different dimensions. It's a reminder that in mathematics, as in life, different dimensions can hold unexpected surprises.

SMRTR provides this summary for quick context. The original article belongs to Quanta Magazine.

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