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. Researcher figures out how sharks manage to act like math geniuses(Phys.org) —Bioresearcher Andy Reynolds with Rothamsted Research in the U.K., believes he has solved the mystery of how sharks act like math geniuses—they simply turn away from turbulence, he reports in his paper published in the journal Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences. His research effort and paper came in response to prior research that showed sharks trap prey using what's known as Lévy flight—a mathematical description of an optimal way of moving from one position to another using both long and short hops.
http://phys.org/news330165297.html
Other Sciences - MathematicsWed, 17 Sep 2014 10:00:01 EDTnews330165297Math journal puts Rauzy fractcal image on the coverAn image created by geometer Edmund Harriss made the cover of the mathematics journal Notices, published by the American Mathematical Society. The image, created in collaboration with Bill Casselman, appeared on the August 2014 edition (Volume 61 Number 7). It shows a stepped path winding through space with the corners of the path projected onto a plane. On the plane each type of corner lives in its own region. The collection of these regions is the Rauzy Fractal.
http://phys.org/news329730161.html
Other Sciences - MathematicsFri, 12 Sep 2014 08:42:49 EDTnews329730161Heat distributions help researchers to understand curved spaceThe heat equation is one of the most important partial differential equations. The behavior of the solution to the equation reflects the geometry of the underlying space very well. Therefore, this equation has been investigated very extensively in both analysis and geometry. The solution evolves over time so that the Dirichlet's energy functional decreases most efficiently. Recently, F. Otto introduced another characterization: the solution evolves so that the Boltzmann entropy increases most efficiently from the viewpoint of optimal transportation. Both of these characterizations enable us to study the heat equation on spaces admitting singularities, where usual differential calculus does not work. However, their identification in such spaces is unknown.
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Other Sciences - MathematicsTue, 26 Aug 2014 07:50:06 EDTnews328255083Professor quantifies how 'one thing leads to another'(Phys.org) —"One thing led to another," people often say. Events, discoveries and relationships are triggered by something previous. The iPhone case was designed only because the iPhone was invented first. A song became popular only after someone liked it.
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Other Sciences - MathematicsFri, 15 Aug 2014 06:41:16 EDTnews327303663Team announces construction of a formal computer-verified proof of the Kepler conjecture(Phys.org) —A team of researchers led by the man, Thomas Hales, who came up with written proof of the Kepler conjecture is now reporting that they have constructed a formal proof of the conjecture, which implies the use of a computer. The announcement was made on The Flyspeck Project page, and puts to rest any doubts about the correctness of the proof done by Hales in 1998.
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Other Sciences - MathematicsWed, 13 Aug 2014 10:10:01 EDTnews327142848Iranian is first woman to win 'Nobel Prize of maths' (Update) An Iranian-born mathematician has become the first woman to win a prestigious Fields Medal, widely viewed as the Nobel Prize of mathematics.
http://phys.org/news327084622.html
Other Sciences - MathematicsTue, 12 Aug 2014 17:50:34 EDTnews327084622Mathematicians analyse new 'racetrack memory' computer device(Phys.org) —Competition to create the smallest, lightest and cheapest laptop on the market is motivating the ongoing search for a better computer-memory device then the current, conventional 2D hard-disk technology. Mathematicians from the University of Bristol have been analysing the potential of one such initiative: the 'racetrack memory' device, proposed by researchers at IBM.
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Other Sciences - MathematicsFri, 01 Aug 2014 09:40:03 EDTnews326103255Children's book explores Really Big NumbersA new children's book written and illustrated by a Brown mathematics professor Richard Schwartz takes readers on a visual journal through the infinite number system. Schwartz hopes Really Big Numbers will help inspire a love of math in young readers.
http://phys.org/news326098033.html
Other Sciences - MathematicsFri, 01 Aug 2014 08:00:01 EDTnews326098033'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 EDTnews324021302Patient choice and hospital capacity during a pandemicAllowing patients to choose which hospital they attend when suffering illness during a pandemic rather than assigning them to a specific healthcare facility is appealing to patients during such a crisis. However, such a patient-centric hospital capacity management is conventionally viewed as inefficient system-wide. According to research published in the International Journal of Mathematics in Operational Research, an incentive-based approach for hospital capacity management can not only accomplish a high efficiency for a concerned hospital system but satisfy patients' preference on their choice of hospital.
http://phys.org/news323964434.html
Other Sciences - MathematicsMon, 07 Jul 2014 15:07:23 EDTnews323964434Mathematical 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 EDTnews323962917A model for Bluetongue disease dynamics in cattleIn a paper recently published in the SIAM Journal on Mathematical Analysis, authors Stephen Gourley, Gergely Röst, and Horst Thieme model disease persistence of a virus called Bluetongue using a system of several delay differential equations. The disease affects sheep and cattle, and is spread by biting midges. In sheep, the bluetongue virus can cause abortion, congenital abnormalities and death, though mild cases completely recover. In cattle, bluetongue does not generally cause death.
http://phys.org/news323582005.html
Other Sciences - MathematicsThu, 03 Jul 2014 05:20:01 EDTnews323582005Mathematically modeling species dispersalDispersal is an ecological process involving the movement of an organism or multiple organisms away from their birth site to another location or population where they settle and reproduce. An important topic in ecology and evolutionary biology, dispersal can either be random or directed. Random movement, as the name indicates, describes dispersal patterns that are unbiased and random, whereas directed or biased movement occurs when organisms sense and respond to local environmental cues by moving directionally. Dispersal is dependent on a variety of factors such as climate, food, and predators, and is often biased.
http://phys.org/news323581912.html
Other Sciences - MathematicsThu, 03 Jul 2014 05:10:02 EDTnews323581912Exploring human nature through the social webThe web grows larger and more social every day, allowing ordinary people to express themselves more publicly and permanently than ever before through blogs and social media such as Facebook, Twitter, YouTube, Instagram, and Foursquare.
http://phys.org/news323445198.html
Other Sciences - MathematicsTue, 01 Jul 2014 14:54:08 EDTnews323445198Statistics is more than a numbers game – it underpins all sciencesWe are all familiar with many instances of statistics in everyday life: the statistics of sport, weather, population, the stock market … the sort of thing that might appear in the "number crunch" column in The Age and The Sydney Morning Herald.
http://phys.org/news323420610.html
Other Sciences - MathematicsTue, 01 Jul 2014 08:20:02 EDTnews32342061019th 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 EDTnews323351578Authority on random matrix theory aims to make sense of huge data setsFrom the increasing information transmitted through telecommunications systems to that analyzed by financial institutions or gathered by search engines and social networks, so-called "big data" is becoming a huge feature of modern life.
http://phys.org/news323073386.html
Other Sciences - MathematicsFri, 27 Jun 2014 08:10:06 EDTnews323073386Mathematical 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 EDTnews322919593Kurt Godel studied statements which refer to themselves, and his results shook the foundations of mathematics"All Cretans are liars", said Epimenides, a Cretan. But this means that his statement must be a lie too. But then it is false that Cretans are liars and the statement must be true. So what now?
http://phys.org/news322818813.html
Other Sciences - MathematicsTue, 24 Jun 2014 09:10:01 EDTnews322818813Bet on Brazil, says sport academicBrazil will win the FIFA 2014 World Cup according to the bookmakers - and a statistical study by a University of Stirling sport economist.
http://phys.org/news321783894.html
Other Sciences - MathematicsThu, 12 Jun 2014 09:25:07 EDTnews321783894New guide to data interpretationWestern blotting is a widely used technique to detect specific proteins. Although considered a semi-quantitative method, the results are often interpreted quantitatively. Scientific articles often do not specify how researchers quantified these results and how they compared biological replicates for statistical testing.
http://phys.org/news321175695.html
Other Sciences - MathematicsThu, 05 Jun 2014 08:28:47 EDTnews321175695Interactive teaching methods help students master tricky calculusPre-class assignments, small group discussions and clicker quizzes improve students' ability to grasp calculus, says new UBC research.
http://phys.org/news321175266.html
Other Sciences - MathematicsThu, 05 Jun 2014 08:21:23 EDTnews321175266Mathematician 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 EDTnews321085124Older statistics methods being supplanted by more accurate onesIt's an exciting time to be doing statistics. You heard me – statistics: exciting.
http://phys.org/news320485217.html
Other Sciences - MathematicsWed, 28 May 2014 08:40:33 EDTnews320485217Researchers 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 EDTnews320400230Putting a number on opinion dynamics in a populationOpinion formation in a large population is influenced by both endogenous factors, such as interaction with one's peers—in-person and via social media—as well as exogenous factors, such as the media, of which mainstream media is one of the most influential factors. For example, according to a study conducted by the National Bureau of Economic Research in 2006, after the introduction and expansion of Fox News in the United States between 1996 and 2000, an estimated 3-28% of the audience was persuaded to vote Republican.
http://phys.org/news319983271.html
Other Sciences - MathematicsThu, 22 May 2014 13:15:18 EDTnews319983271New mathematical model reduces time to simulate natural disasters(Phys.org) —The amount of time it takes to mathematically simulate the path of ash from a volcano eruption or a satellite collision can take hours, even days. However a new method, the Conjugate Unscented Transform (CUT), has shortened the process to minutes.
http://phys.org/news319701197.html
Other Sciences - MathematicsMon, 19 May 2014 07:30:01 EDTnews319701197Statistical analysis unveils the hidden patterns in Eurovision votingVoting for the Eurovision Song Contest has been scrutinised by statistics experts at UCL and Imperial College London, who have found that musical talent is unlikely to be the only element that wins scores – but that the contest is not stitched up at the UK's expense.
http://phys.org/news318168135.html
Other Sciences - MathematicsThu, 01 May 2014 13:02:50 EDTnews318168135