Phys.org: Mathematics News
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en-usPhys.org provides the latest news on mathematics, math, math science, mathematical science and math technology. 'Moral victories' might spare you from losing againIt's human nature to hate losing. Unfortunately, it's also human nature to overreact to a loss, potentially abandoning a solid strategy and thus increasing your chances of losing the next time around.
http://phys.org/news325181302.html
Other Sciences - MathematicsMon, 21 Jul 2014 17:09:13 EDTnews325181302Fair cake cutting gets its own algorithmThe next time your children quibble about who gets to eat which part of a cake, call in some experts on the art of sharing. Mathematician Julius Barbanel of Union College, and political scientist Steven Brams of New York University, both in the US, published an algorithm in Springer's The Mathematical Intelligencer by which they show how to optimally share cake between two people efficiently, in equal pieces and in such a way that no one feels robbed.
http://phys.org/news324744657.html
Other Sciences - MathematicsWed, 16 Jul 2014 15:51:10 EDTnews324744657Effort to model Facebook yields key to famous math problem (and a prize)(Phys.org) —Dan Spielman, a Yale computer scientist, wasn't looking for a new problem. He was already deeply immersed in a tricky effort to model complex online communities like Facebook, hoping to gain insight into how they form and interact.
http://phys.org/news324021302.html
Other Sciences - MathematicsTue, 08 Jul 2014 07:40:02 EDTnews324021302Mathematical model illustrates our online 'copycat' behaviorResearchers from the University of Oxford, the University of Limerick, and the Harvard School of Public Health have developed a mathematical model to examine online social networks, in particular the trade-off between copying our friends and relying on 'best-seller' lists.
http://phys.org/news323962917.html
Other Sciences - MathematicsMon, 07 Jul 2014 15:00:05 EDTnews32396291719th century math tactic gets a makeover—and yields answers up to 200 times fasterA relic from long before the age of supercomputers, the 169-year-old math strategy called the Jacobi iterative method is widely dismissed today as too slow to be useful. But thanks to a curious, numbers-savvy Johns Hopkins engineering student and his professor, it may soon get a new lease on life.
http://phys.org/news323351578.html
Other Sciences - MathematicsMon, 30 Jun 2014 12:53:29 EDTnews323351578Mathematical models explain how a wrinkle becomes a creaseWrinkles, creases and folds are everywhere in nature, from the surface of human skin to the buckled crust of the Earth. They can also be useful structures for engineers. Wrinkles in thin films, for example, can help make durable circuit boards for flexible electronics.
http://phys.org/news322919593.html
Other Sciences - MathematicsWed, 25 Jun 2014 12:53:25 EDTnews322919593Mathematician unleashes 'a wave of new results' in geometric analysisIt's something children do every day when blowing bubbles: Stick a circular wire in a pot of soapy water, pull it out, and behold the film forming across it.
http://phys.org/news321085124.html
Other Sciences - MathematicsWed, 04 Jun 2014 07:19:08 EDTnews321085124Researchers devise method to study network resistance to random failures based on 'random walks'(Phys.org) —A small team of mathematicians with Universitat Rovira i Virgili in Spain, has come up with a way to study a network's resistance to failure. In their paper published in Proceedings of the National Academy of Sciences, the researchers describe the concept of "random walks" and how it can be used to mathematically analyze a wide variety of networks to study its resistance to failure.
http://phys.org/news320400230.html
Other Sciences - MathematicsTue, 27 May 2014 09:30:04 EDTnews320400230Mathematicians trace source of Rogers-Ramanujan identities, find algebraic goldMathematicians have found a framework for the celebrated Rogers-Ramanujan identities and their arithmetic properties, solving another long-standing mystery stemming from the work of Indian math genius Srinivasa Ramanujan.
http://phys.org/news317992029.html
Other Sciences - MathematicsTue, 29 Apr 2014 12:07:54 EDTnews317992029Hyperbolic homogeneous polynomials, oh my!Cutting-edge mathematics today, at least to the uninitiated, often sounds as if it bears no relation to the arithmetic we all learned in grade school. What do topology and combinatorics and n-dimensional space have to do with addition, subtraction, multiplication, and division? Yet there remains within mathematics one vibrant field of study that makes constant reference to basic arithmetic: number theory. Number theory—the "queen of mathematics," according to the famous 19th century mathematician Carl Friedrich Gauss—takes integers as its starting point. Begin counting 1, 2, 3, and you enter the domain of number theory.
http://phys.org/news317286995.html
Other Sciences - MathematicsMon, 21 Apr 2014 09:10:08 EDTnews317286995Overcoming structural uncertainty in computer modelsA computer model is a representation of the functional relationship between one set of parameters, which forms the model input, and a corresponding set of target parameters, which forms the model output. A true model for a particular problem can rarely be defined with certainty. The most we can do to mitigate error is to quantify the uncertainty in the model.
http://phys.org/news315571732.html
Other Sciences - MathematicsTue, 01 Apr 2014 11:49:05 EDTnews315571732Statistical physics algorithm helps basketball fans fill out NCAA bracket(Phys.org) —Back in the early 2000s, Ed Feng was a Ph.D. student at Stanford studying chemical engineering. At the time, he never thought that his research on the dynamics of liquids using statistical physics would one day lead to an algorithm that ranks sports teams. Yet now, more than a decade later, he's running a website devoted to sports analytics based on statistical physics that works much in the same way as Google's PageRank algorithm works for ranking websites.
http://phys.org/news314338816.html
Other Sciences - MathematicsTue, 18 Mar 2014 09:20:01 EDTnews314338816Computational study finds maximum packing density of 55,000 different shapesA team of researchers at the University of Michigan has used computational and analytical analysis to find the maximum packing density of 55,000 uniquely shaped particles. In their paper published in the journal Physical Review Letters, the team describes how they used two parameters: edge and corner truncation, to find the most efficient way to pack various structures.
http://phys.org/news313226585.html
Other Sciences - MathematicsWed, 05 Mar 2014 10:00:02 EDTnews313226585Secret to the perfect pancake is discoveredIn a collaboration with Meadowhall Shopping Centre, students from the University's Maths Society (SUMS) developed, trialled and tested a formula which enables pancake-lovers across the world to rustle-up pancakes to their own personal preference, taking into account the number of pancakes required, thickness and pan size.
http://phys.org/news313148880.html
Other Sciences - MathematicsTue, 04 Mar 2014 09:48:39 EDTnews313148880New data shows baseball managers when to replace the starting pitcherLast October, the Detroit Tigers won the first game of the American League Championship Series against the Boston Red Sox; the Tigers led the second game, 5-1, going into the eighth inning in Boston's Fenway Park, with one of the league's best starting pitchers, Max Scherzer, on the mound. They were six outs from taking command of the series.
http://phys.org/news312806511.html
Other Sciences - MathematicsFri, 28 Feb 2014 10:42:19 EDTnews312806511Computer generated math proof is too large for humans to check(Phys.org) —A pair of mathematicians, Alexei Lisitsa and Boris Konev of the University of Liverpool, U.K., have come up with an interesting problem—if a computer produces a proof of a math problem that is too big to study, can it be judged as true anyway? In a paper they've uploaded to the preprint server arXiv, the two describe how they set a computer program to proving a small part of what's known as "Erdős discrepancy problem"—the proof produced a data file that was 13-gigabytes in size—far too large for any human to check, leading to questions as to whether the proof can be taken as a real proof.
http://phys.org/news312027154.html
Other Sciences - MathematicsWed, 19 Feb 2014 11:00:02 EDTnews312027154Researchers propose a better way to make sense of 'Big Data'Big Data is everywhere, and we are constantly told that it holds the answers to almost any problem we want to solve. Companies collect information on how we shop, doctors and insurance companies gather our medical test results, and governments compile logs of our phone calls and emails. In each instance, the hope is that critical insights are hidden deep within massive amounts of information, just waiting to be discovered.
http://phys.org/news311967605.html
Other Sciences - MathematicsTue, 18 Feb 2014 17:40:17 EDTnews311967605After 400 years, mathematicians find a new class of solid shapesThe work of the Greek polymath Plato has kept millions of people busy for millennia. A few among them have been mathematicians who have obsessed about Platonic solids, a class of geometric forms that are highly regular and are commonly found in nature.
http://phys.org/news311931562.html
Other Sciences - MathematicsTue, 18 Feb 2014 08:30:01 EDTnews311931562Study suggests banks could learn from monkeys to avoid collapse(Phys.org) —All jokes about monkey business aside, primate social networks provide valuable lessons that could help predict and prevent catastrophes like the global financial crisis of 2008, report researchers at the University of California, Davis.
http://phys.org/news311411464.html
Other Sciences - MathematicsWed, 12 Feb 2014 07:40:02 EDTnews311411464Mathematicians calculate that there are 177,147 ways to knot a tie(Phys.org) —A small team of mathematicians, led by Mikael Vejdemo-Johansson of the of the KTH Royal Institute of Technology in Stockholm, has uploaded a paper to the preprint server arXiv describing a mathematical process they used to determine that the number of ways to tie a tie is 177,147—far more than previous research has suggested.
http://phys.org/news311253254.html
Other Sciences - MathematicsMon, 10 Feb 2014 11:40:01 EDTnews311253254Researchers develop 'envy-free' algorithm for settling disputesWhether it's season tickets to Green Bay Packers' games or silver place settings, divorce and inheritance have bred protracted disputes over the assignment of belongings. But, now, a trio of researchers has found a method for resolving such conflicts in an envy-free way.
http://phys.org/news310649138.html
Other Sciences - MathematicsMon, 03 Feb 2014 11:25:54 EDTnews310649138How the 'Matthew Effect' helps some scientific papers gain popularityDo scientific papers written by well-known scholars get more attention than they otherwise would receive because of their authors' high profiles?
http://phys.org/news310028772.html
Other Sciences - MathematicsMon, 27 Jan 2014 07:07:10 EDTnews310028772An old mathematical puzzle soon to be unraveled?(Phys.org) —It is one the oldest mathematical problems in the world. Several centuries ago, the twin primes conjecture was formulated. As its name indicates, this hypothesis, which many science historians have attributed to the Greek mathematician Euclid, deals with prime numbers, those divisible only by themselves and by one (2, 3, 5, 7, 11, etc.). Under this assumption, there exists an infinite number of pairs of prime numbers whose difference is two, called twin primes (e.g., 3 and 5), but nobody has been able to confirm this so far.
http://phys.org/news308995833.html
Other Sciences - MathematicsWed, 15 Jan 2014 08:30:02 EDTnews308995833Mathematician drafts urban nuclear shelter guideA scientist published a guide Wednesday to help authorities limit deaths from fallout after a city is hit by a nuclear bomb.
http://phys.org/news308985092.html
Other Sciences - MathematicsWed, 15 Jan 2014 05:30:01 EDTnews308985092Rethinking the roots of altruismFor decades, researchers working to understand how altruistic behavior evolved have relied on a concept known as inclusive fitness, which holds that organisms receive an evolutionary benefit—and are able to pass on their genes—through cooperative behavior.
http://phys.org/news308815368.html
Other Sciences - MathematicsMon, 13 Jan 2014 06:03:21 EDTnews308815368Help solve Santa's logistics troubles with a little mathsIn just one night, Santa has to visit millions of homes to deliver presents. If he could travel at the speed of light, the task would be simple.
http://phys.org/news307013760.html
Other Sciences - MathematicsMon, 23 Dec 2013 10:30:02 EDTnews307013760The 12 days of Pascal's triangular Christmas One of the most magical aspects of mathematics is the ability for complex and intricate structures to emerge from the simplest of rules. Few mathematical objects are simpler to create – and few weave such a variety of intricate patterns – as Pascal's marvellous triangle.
http://phys.org/news306750350.html
Other Sciences - MathematicsFri, 20 Dec 2013 09:10:01 EDTnews306750350Some Polynesian islanders combined binary and decimal math(Phys.org) —When we think of binary math, we think of computers. A number system with only two digits makes calculations quick and easy. However, binary numbers can be very long and, therefore, unwieldy. While binary numbers might be great for machines, decimal numbers are shorter and more comfortable for people to use. A system that combines the benefits of base 2 and base 10 could be ideal. Andrea Bender and Sieghard Beller of the University of Bergen in Norway have discovered that the Mangarevans of French Polynesia used such a hybrid system at least 500 years ago. Their research appears in the Proceedings of the National Academy of Sciences.
http://phys.org/news306482607.html
Other Sciences - MathematicsTue, 17 Dec 2013 06:30:01 EDTnews306482607Simple mathematical formula describes human strugglesWould you believe that a broad range of human struggles can be understood by using a mathematical formula? From child-parent struggles to cyber-attacks and civil unrest, they can all be explained with a simple mathematical expression called a "power-law."
http://phys.org/news306089131.html
Other Sciences - MathematicsThu, 12 Dec 2013 16:45:41 EDTnews306089131Mathematics expert devises festive formula to find the perfect Christmas treeTake one perplexed shopper, add a veritable forest of festive foliage, multiply by some mathematical ingenuity and what have you got? The perfect family Christmas tree.
http://phys.org/news306066861.html
Other Sciences - MathematicsThu, 12 Dec 2013 10:34:36 EDTnews306066861