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. Overcoming 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 ESTnews315571732Statistical 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 ESTnews314338816Computational 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 ESTnews313226585Secret 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 ESTnews313148880New 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 ESTnews312806511Computer 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 ESTnews312027154Researchers 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 ESTnews311967605After 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 ESTnews311931562Study 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 ESTnews311411464Mathematicians 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 ESTnews311253254Researchers 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 ESTnews310649138How 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 ESTnews310028772An 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 ESTnews308995833Mathematician 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 ESTnews308985092Rethinking 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 ESTnews308815368Help 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 ESTnews307013760The 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 ESTnews306750350Some 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 ESTnews306482607Simple 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 ESTnews306089131Mathematics 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 ESTnews306066861Math models enhance current therapies for coronary heart diseaseCoronary heart disease accounts for 18% of deaths in the United States every year. The disease results from a blockage of one or more arteries that supply blood to the heart muscle. This occurs as a result of a complex inflammatory condition called artherosclerosis, which leads to progressive buildup of fatty plaque near the surface of the arterial wall.
http://phys.org/news305814742.html
Other Sciences - MathematicsMon, 09 Dec 2013 12:32:48 ESTnews305814742A vexing math problem finds an elegant solution(Phys.org) —A famous math problem that has vexed mathematicians for decades has met an elegant solution by Cornell researchers. Graduate student Yash Lodha, working with Justin Moore, professor of mathematics, has described a geometric solution for the von Neumann-Day problem, first described by mathematician John von Neumann in 1929.
http://phys.org/news303637618.html
Other Sciences - MathematicsThu, 14 Nov 2013 07:47:16 ESTnews303637618Statistician suggests raising statistical standards to reduce amount of non-reproducible studies(Phys.org) —Valen Johnson, a statistician with Texas A&M University is suggesting in a paper published in Proceedings of the National Academy of Sciences, that the statistical standard used to judge the soundness of research efforts be made more stringent. Doing so, he writes, would reduce the large numbers of non-reproducible findings by researchers and as a result prevent the undermining of confidence in such efforts.
http://phys.org/news303468346.html
Other Sciences - MathematicsTue, 12 Nov 2013 08:46:11 ESTnews303468346Mathematical equation could reduce traffic jams(Phys.org) —New research has found traffic jams and accidents could be reduced by controlling the reaction times of robotic cars.
http://phys.org/news302937422.html
Other Sciences - MathematicsWed, 06 Nov 2013 05:17:32 ESTnews302937422Are you ready to retire? Mathematical models estimate the value of pension plansThere comes a time in each of our lives when we consider starting a pension plan –either on the advice of a friend, a relative, or of our own volition. The plan of choice may depend on various factors, such as the age and salary of the individual, number of years of expected employment, as well as options to retire early or late.
http://phys.org/news301593725.html
Other Sciences - MathematicsMon, 21 Oct 2013 17:02:49 ESTnews301593725Peer pressure's influence calculated by mathematician(Phys.org) —A mathematician has calculated how peer pressure influences society.
http://phys.org/news300520575.html
Other Sciences - MathematicsWed, 09 Oct 2013 06:56:28 ESTnews300520575Math explains history: Simulation accurately captures the evolution of ancient complex societiesThe question of how human societies evolve from small groups to the huge, anonymous and complex societies of today has been answered mathematically, accurately matching the historical record on the emergence of complex states in the ancient world.
http://phys.org/news299149928.html
Other Sciences - MathematicsMon, 23 Sep 2013 15:00:07 ESTnews299149928Is mathematics an effective way to describe the world?Mathematics has been called the language of the universe. Scientists and engineers often speak of the elegance of mathematics when describing physical reality, citing examples such as π, E=mc2, and even something as simple as using abstract integers to count real-world objects. Yet while these examples demonstrate how useful math can be for us, does it mean that the physical world naturally follows the rules of mathematics as its "mother tongue," and that this mathematics has its own existence that is out there waiting to be discovered? This point of view on the nature of the relationship between mathematics and the physical world is called Platonism, but not everyone agrees with it.
http://phys.org/news297434159.html
Other Sciences - MathematicsTue, 03 Sep 2013 13:37:50 ESTnews297434159Using math models to make predictions: How vegetation competes for rainfall in dry regionsThe greater the plant density in a given area, the greater the amount of rainwater that seeps into the ground. This is due to a higher presence of dense roots and organic matter in the soil. Since water is a limited resource in many dry ecosystems, such as semi-arid environments and semi-deserts, there is a benefit to vegetation to adapt by forming closer networks with little space between plants.
http://phys.org/news297082184.html
Other Sciences - MathematicsFri, 30 Aug 2013 11:49:57 ESTnews297082184Doing the math 'predicts' which movies will be box office hits(Phys.org) —Researchers have devised a mathematical model which can be used to predict whether films will become blockbusters or flops at the box office – up to a month before the movie is released.
http://phys.org/news296373989.html
Other Sciences - MathematicsThu, 22 Aug 2013 08:10:01 ESTnews296373989