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Karan Gupta

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139. Michael Dela Torre Lascuña 37
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142. Mark Shanteau 35
143. Watermelon Cat 35
last 3 solved tasks
NUMBERMANIA: Calculate the number 1027 using numbers [9, 1, 3, 4, 90, 939] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
If c9c07 - ca8bb = a3a1 find number abc. Multiple solutions may exist.
NUMBERMANIA: Calculate the number 5031 using numbers [6, 7, 4, 2, 18, 727] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Simon Kirwan Donaldson

Born 20 Aug 1957.British mathematician who was awarded the Fields Medal in 1986 for his work in topology. Nearly all his work falls in the two realms of (1) differential geometry of holomorphic vector bundles and (2) applications of gauge theory to 4-manifold topology. Remarkably, Donaldson has solved problems of mathematics by using ideas from physics (wheras most mathematics in usually applied to physics). From the Yang-Mills generalizations of James Clerk Maxwell's electromagnetic equations, Donaldson used special solutions to these equations, called instantons, to look at general four-manifolds. After being awarded the Fields Medal, Donaldson continued his exploitation of ideas from physics with applications to mathematics.

Thinking about the future

Q. How does a man show he's planning for the future?

A. He buys two cases of beer instead of one.

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