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American Focus > Blog > Tech and Science > Mathematicians Solve Multidimensional Shape-Slicing Dilemma
Tech and Science

Mathematicians Solve Multidimensional Shape-Slicing Dilemma

Last updated: June 5, 2025 9:25 pm
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Mathematicians Solve Multidimensional Shape-Slicing Dilemma
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Mathematicians have finally cracked a 40-year-old conjecture regarding the cross sections of shapes in multiple dimensions. The question, posed by Belgian mathematician Jean Bourgain in 1986, revolved around whether it was possible to slice a convex shape in such a way that the resulting cross section would always be larger than a certain fixed value. This problem, known as Bourgain’s slicing problem, has stumped researchers for decades.

In a recent paper published on the preprint site arXiv.org, mathematicians Bo’az Klartag from the Weizmann Institute of Science in Israel and Joseph Lehec from the University of Poitiers in France, have provided a definitive answer to Bourgain’s question – yes, it is possible. This breakthrough sheds light on the fascinating world of high-dimensional geometry and has significant implications for various fields of mathematics.

The problem of slicing convex shapes becomes increasingly complex as we move into higher dimensions. While it may seem straightforward in two or three dimensions, the challenge grows exponentially when considering four or five dimensions. Despite these difficulties, Klartag and Lehec were able to tackle the problem head-on and come up with a solution.

Their breakthrough was made possible by leveraging recent progress made by mathematician Qingyang Guan from the Chinese Academy of Sciences. Guan’s innovative approach, which involved modeling heat diffusion in convex shapes, provided a new perspective on the problem. By observing how heat dissipates from a convex shape, researchers were able to uncover hidden geometric structures that played a crucial role in solving Bourgain’s slicing problem.

By combining Guan’s insights with their own expertise, Klartag and Lehec were able to crack the problem in just a few days. This rapid progress was made possible by connecting various approaches to the puzzle and leveraging key findings from previous research. The result not only provides a definitive answer to Bourgain’s question but also opens up new avenues for exploring the geometry of convex bodies in high dimensions.

See also  'Super-Earths' May Be Surprisingly Common, Scientists Reveal : ScienceAlert

In the world of mathematics, every new solution leads to more questions and challenges to be explored. Klartag and Lehec’s achievement in solving the multidimensional fruit-slicing dilemma is a testament to the power of collaboration, innovation, and perseverance in the field of mathematics.

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