Free Newsletters - Space - Defense - Environment - Energy - Solar - Nuclear
..
. Space Industry and Business News .




TECH SPACE
Professor who once had to work at Subway makes math breakthrough
by Staff Writers
Durham, N.H. (UPI) May 24, 2013


disclaimer: image is for illustration purposes only

A virtually unknown U.S. professor has taken a major step in solving a numerical problem that has baffled mathematicians for centuries, experts said.

Yitang Zhang, a researcher at the University of New Hampshire who once took a job a Subway because he couldn't secure an academic appointment, has made a significant step towards settling a long-standing question about prime numbers -- numbers that can only be divided by themselves and by one.

An oddity among prime numbers is that they often come as pairs known as "twin primes" separated by only two, like three and five, 11 and 13 or 18,383,549 and 18,383,551.

Mathematicians have long suspected there is an infinite number of twin primes -- expressed in a theory known as the "twin prime conjecture" -- but no one has ever been able to prove it.

Zhang has demonstrated no matter how large a twin prime is, there will always be another pair of primes separated from them by less than 70 million.

While not proving an infinite number of twin primes, Zhang's work effectively proves the distance between prime pairs does not keep on increasing to an infinite size.

Members of the editorial board of the Annals of Mathematics journal, which published the work, said Zhang had published "hardly anything" before and was not regarded as a "big name" in mathematics circles.

"It's a steady stream of papers which tends to get you jobs," board member Richar Taylor told The Daily Telegraph. "Maybe [Zhang] likes to think about the big problems -- and you don't solve those very often."

Working at the sandwich shop while seeking a university position "wasn't bad," Zhang said, but "whenever I was doing it I was thinking about maths."

.


Related Links
Space Technology News - Applications and Research






Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle




Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News





TECH SPACE
Iron-platinum alloys could be new-generation hard drives
Davis CA (SPX) May 23, 2013
Meeting the demand for more data storage in smaller volumes means using materials made up of ever-smaller magnets, or nanomagnets. One promising material for a potential new generation of recording media is an alloy of iron and platinum with an ordered crystal structure. Researchers led by Professor Kai Liu and graduate student Dustin Gilbert at the University of California, Davis, have now foun ... read more


TECH SPACE
Ecuador's only satellite may have been damaged in space collision

New analysis yields improvements in 3D imaging

Professor who once had to work at Subway makes math breakthrough

Iron-platinum alloys could be new-generation hard drives

TECH SPACE
General Dynamics to Deliver U.S. Army's Newest Tactical Ground Station Intelligence System

Boeing-built WGS-5 Satellite Enhances Tactical Communications for Warfighters

US Navy And Lockheed Martin Deliver Secure Communications Satellite For Mobile Users

Making frequency-hopping radios practical

TECH SPACE
Russian Spacecraft Manufacturer to Make Four Launches in 2014

Electric Propulsion

O3b Networks Launcher and payload integration are underway at Kourou

Arianespace underscores strong partnership with Japan during Tokyo meetings

TECH SPACE
GPS solution provides three-minute tsunami alerts

Northrop Grumman Delivers 8,000th LN-100 Inertial Navigation System

NASA Builds Unusual Testbed for Analyzing X-ray Navigation Technologies

Pakistan adopts Chinese rival GPS satellite system

TECH SPACE
NASA's BARREL Mission Launches 20 Balloons

US F-15 crashes in Japan, pilot ejects safely

Frigid Heat: How Ice can Menace a Hot Engine

Air China says orders 100 Airbus A320 jets worth $8.8 bn

TECH SPACE
New Technique May Open Up an Era of Atomic-scale Semiconductor Devices

Bright Future For Photonic Quantum Computers

New magnetic graphene may revolutionize electronics

Flawed Diamonds Promise Sensory Perfection

TECH SPACE
NASA Ships Sensors for Seafaring Satellite to France

NASA's Landsat Satellite Looks for a Cloud-Free View

Google team captures Galapagos Island beauty for maps

NASA Helps Pinpoint Glaciers' Role in Sea Level Rise

TECH SPACE
Frog once imported for pregnancy testing brought deadly amphibian disease to US

Hong Kong launches plan to tackle waste crisis

Nearly 1,000 protest against China chemical plant

Making gold green: New non-toxic method for mining gold




The content herein, unless otherwise known to be public domain, are Copyright 1995-2014 - Space Media Network. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement