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Erica Klarreich

Freelance Mathematics and Science Journalist

Berkeley, California

Erica Klarreich

My work has appeared in Quanta, Nature, New Scientist, Science News, Wired.com and many other publications, and has been reprinted in the 2010 and 2011 volumes of "The Best Writing on Mathematics."

klarreic@nasw.org
@EricaKlarreich

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The Oracle of Arithmetic

June 28, 2016 — In 2010, a startling rumor filtered through the number theory community and reached Jared Weinstein. Apparently, some graduate student at the University of Bonn in Germany had written a paper that redid “Harris-Taylor” — a 288-page book dedicated to a single impenetrable proof in number theory — in only 37 pages.
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Simple Set Game Proof Stuns Mathematicians

May 31, 2016 — In a series of papers posted online in recent weeks, mathematicians have solved a problem about the pattern-matching card game Set that predates the game itself. The solution, whose simplicity has stunned mathematicians, is already leading to advances in other combinatorics problems. Invented in 1974, Set has a simple goal: to find special triples called “sets” within a deck of 81 cards.
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Mathematician Solves the Centuries-Old Sphere Problem in Higher Dimensions

April 2, 2016 — In a pair of papers posted online this month, a Ukrainian mathematician has solved two high-dimensional versions of the centuries-old “sphere packing” problem. In dimensions eight and 24 (the latter dimension in collaboration with other researchers), she has proved that two highly symmetrical arrangements pack spheres together in the densest possible way.
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Mathematicians Discover Prime Conspiracy

March 13, 2016 — Two mathematicians have uncovered a simple, previously unnoticed property of prime numbers — those numbers that are divisible only by 1 and themselves. Prime numbers, it seems, have decided preferences about the final digits of the primes that immediately follow them. Among the first billion prime numbers, for instance, a prime ending in 9 is almost 65 percent more likely to be followed by a prime ending in 1 than another prime ending in 9.
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Landmark Algorithm Breaks 30-Year Impasse

December 14, 2015 — A theoretical computer scientist has presented an algorithm that is being hailed as a breakthrough in mapping the obscure terrain of complexity theory, which explores how hard computational problems are to solve. Last month, László Babai, of the University of Chicago, announced that he had come up with a new algorithm for the “graph isomorphism” problem, one of the most tantalizing mysteries in computer science.
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‘Outsiders’ Crack 50-Year-Old Math Problem

November 24, 2015 — In 2008, Daniel Spielman told his Yale University colleague Gil Kalai about a computer science problem he was working on, concerning how to “sparsify” a network so that it has fewer connections between nodes but still preserves the essential features of the original network. Network sparsification has applications in data compression and efficient computation, but Spielman’s particular problem suggested something different to Kalai.
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A Magical Answer to an 80-Year-Old Puzzle

October 1, 2015 — The mathematician Terence Tao, of the University of California, Los Angeles, has presented a solution to an 80-year-old number theory problem posed by the legendary Hungarian mathematician Paul Erdős. Erdős was famous for the thousands of puzzles he came up with, many of which have led to surprisingly deep mathematical discoveries.
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The Connoisseur of Number Sequences

August 6, 2015 — Neil Sloane is considered by some to be one of the most influential mathematicians of our time. That’s not because of any particular theorem the 75-year-old Welsh native has proved, though over the course of a more than 40-year research career at Bell Labs (later AT&T Labs) he won numerous awards for papers in the fields of combinatorics, coding theory, optics and statistics.
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A Design Dilemma Solved, Minus Designs

June 9, 2015 — In 1850, the Reverend Thomas Kirkman, rector of the parish of Croft-with-Southworth in Lancashire, England, posed an innocent-looking puzzle in the Lady’s and Gentleman’s Diary, a recreational mathematics journal: “Fifteen young ladies in a school walk out three abreast for seven days in succession: it is required to arrange them daily, so that no two shall walk twice abreast.”.
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Episode 59: Erica Klarreich

May 21, 2015 — On this episode of Strongly Connected Components Samuel Hansen talks to mathematics writer Erica Klarreich. They discuss why she had no choice but to go into mathematics because of her family, what triggered her to move from research into journalism, and how she tries to leave her readers with a small sense of doing some of the mathematics she writes about.
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A magician turned Stanford mathematician is on a quest to solve one of the biggest mysteries about cards

April 16, 2015 — Persi Diaconis shuffled and cut the deck of cards I’d brought for him, while I promised not to reveal his secrets. In an empty conference room at the Joint Mathematics Meetings in San Antonio, Texas, this January, he casually tossed the cards into four piles in a seemingly random motion — yet when he checked, each pile magically had an ace on top.
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Erica Klarreich... Journalist/Mathematician/Ray Smullyan Fan

April 12, 2015 — After I interviewed science/math writer Natalie Wolchover a bit ago, it occurred to me I should interview her Quanta colleague, Erica Klarreich, who actually specializes even more-so in mathematical pieces.
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About

Erica Klarreich

I have been writing about mathematics and science for a popular audience for more than fifteen years. A mathematician before I became a full-time journalist, I try to convey the essence of complex mathematical ideas to non-mathematicians, and give them a sense of the beauty and depth of mathematics.

I also enjoy plunging into topics far from my mathematical roots, and have written about fields such as economics, computer science, medicine, and biology — often as these fields relate to mathematics, but often simply for their own sake. I am comfortable writing about all areas of science.

As a freelance journalist based in Berkeley, California, I have written for many publications, including Nature, ScientificAmerican.com, Quanta Magazine, New Scientist, American Scientist, Wired.com, Nautilus, and Science News, for which I was the mathematics correspondent for several years. I was also the Journalist-in-Residence at the Mathematical Sciences Research Institute in Berkeley. My work has been reprinted in the 2010 and 2011 volumes of "The Best Writing on Mathematics."

I am a graduate of the science writing program at the University of California, Santa Cruz, and I have a Ph.D. in mathematics from Stony Brook University.

Contact me at klarreic@nasw.org.

Follow me on Twitter at @EricaKlarreich