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- A Breakthrough by Maryna Viazovska Leading to the Long Awaited Solutions for the Densest Packing Problem in Dimensions 8 and 24
- Answer: Lord Kelvin, The Age of the Earth, and the Age of the Sun
- Three Conferences: Joel Spencer, April 29-30, Courant; Joel Hass May 20-22, Berkeley, Jean Bourgain May 21-24, IAS, Princeton
- The Quantum Computer Puzzle @ Notices of the AMS
- Polymath10: The Erdos Rado Delta System Conjecture
- Can Category Theory Serve as the Foundation of Mathematics?
- Seven Problems Around Tverberg's Theorem
- János Pach: Guth and Katz's Solution of Erdős's Distinct Distances Problem
- Believing that the Earth is Round When it Matters

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# Monthly Archives: April 2009

## The Generation Gap

Which is larger, the generation gap between you and your perents or the generation gap between you and your children?

## A Problem on Planar Percolation

Conjecture (Gady Kozma): Prove that the critical probability for planar percolation on a Cayley graph of the group is always an algebraic number. Gady mentioned this conjecture in his talk here about percolation on infinite Cayley graphs. (Update April 30: Today Gady mentioned … Continue reading

## A Conference and a School on Oded Schramm’s Mathematics

There will be a conference this summer in Redmond and a school in December in Jerusalem devoted to Oded Schramm’s mathematics. Oded Schramm Memorial Conference Probability and Geometry Redmond WA, August 30-31, 2009 To be held at Microsoft … Continue reading

## Two Fractal Vegtables Found on Blogs

Physicists and mathematicians think alike: From Kowalski’s blog From asymptotia

## Exciting New Blogs and New Posts

There are new exciting blogs and all sort of nice things on old blogs. In Avzel’s journal you can find a post with the words and a link to the performence of a beautiful Leonard Cohen’s song “everybody knows”; and you can … Continue reading

## (Eran Nevo) The g-Conjecture II: The Commutative Algebra Connection

Richard Stanley This post is authored by Eran Nevo. (It is the second in a series of five posts.) The g-conjecture: the commutative algebra connection Let be a triangulation of a -dimensional sphere. Stanley’s idea was to associate with a ring … Continue reading

## How the g-Conjecture Came About

This post complements Eran Nevo’s first post on the -conjecture 1) Euler’s theorem Euler Euler’s famous formula for the numbers of vertices, edges and faces of a polytope in space is the starting point of many mathematical stories. (Descartes came close … Continue reading