Imagine you're a mapmaker, ready to finish your masterpiece map of the world. The only thing left to do is add the colors. But how many colors do you need for the countries if you want to make sure no ...
When Hannah Cairo was a 17-year-old high school student, she did something mathematicians had been unable to do for four decades: she overturned the Mizohata-Takeuchi conjecture, a famous prediction ...
URBANA — Here's the task: Color a map of the United States so that no two adjacent states have the same color. What's the least amount of colors you would need? The answer to that question took ...
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