Mathematics News - Math News, Mathematical Sciences
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en-usPhys.org provides the latest news on mathematics, math, math science, mathematical science and math technology. How to avoid a sucker bet – with a little help from mathsSitting in a bar, you start chatting to a man who issues you a challenge. He hands you five red and two black cards. After shuffling, you lay them on the bar, face down. He bets you that you cannot turn over three red cards. And to help you, he explains the odds.
https://phys.org/news/2018-01-sucker-maths.html
Mathematics Wed, 17 Jan 2018 09:59:39 ESTnews435405568The Fields Medal fallacy: Why this math prize should return to its rootsThe Fields Medal, whose origins date back to the 1930s, will be issued again this year in August to up to four of the world's most accomplished mathematicians under the age of 40. In a commentary for Nature, Michael Barany, a Society of Fellows post-doctoral fellow in history at Dartmouth, proposes that the Fields Medal return to its roots as a tool intended to shape the future of mathematics, rather than recognizing those who have already found the spotlight.
https://phys.org/news/2018-01-fields-medal-fallacy-math-prize.html
Mathematics Tue, 16 Jan 2018 12:44:00 ESTnews435329031Math can predict how cancer cells evolveApplied mathematics can be a powerful tool in helping predict the genesis and evolution of different types of cancers, a study from the University of Waterloo has found.
https://phys.org/news/2018-01-math-cancer-cells-evolve.html
Mathematics Tue, 16 Jan 2018 01:46:19 ESTnews435289563Why do we need to know about prime numbers with millions of digits?Prime numbers are more than just numbers that can only be divided by themselves and one. They are a mathematical mystery, the secrets of which mathematicians have been trying to uncover ever since Euclid proved that they have no end.
https://phys.org/news/2018-01-prime-millions-digits.html
Mathematics Fri, 12 Jan 2018 09:06:50 ESTnews434970399Vision, sensory and motor testing could predict best batters in baseballNew research from Duke Health suggests baseball scouts looking for a consistent, conscientious hitter may find clues not only in their performance on the field, but also in front of a computer screen.
https://phys.org/news/2018-01-vision-sensory-motor-batters-baseball.html
Mathematics Mon, 08 Jan 2018 05:00:02 ESTnews434605441GIMPS project discovers largest known prime numberThe Great Internet Mersenne Prime Search (GIMPS) has discovered the largest known prime number, 277,232,917-1, having 23,249,425 digits. A computer volunteered by Jonathan Pace made the find on December 26, 2017.
https://phys.org/news/2018-01-gimps-largest-prime.html
Mathematics Thu, 04 Jan 2018 09:30:38 ESTnews434280583How Facebook could stop a disease outbreakFacebook accounts and telephone records can be used to pinpoint the best individuals to vaccinate to stop a disease outbreak in its tracks, researchers said Wednesday.
https://phys.org/news/2018-01-facebook-disease-outbreak.html
Mathematics Wed, 03 Jan 2018 03:26:10 ESTnews434172363Maths for midges that pull 10gMidges move with ferocious randomness, frequently subjecting themselves to accelerations of more than 10g, well beyond the limit of fighter pilots, as they duck and dive in swarms that still retain an almost paradoxical cohesiveness despite blustery wind or powerful updrafts.
https://phys.org/news/2018-01-maths-midges-10g.html
Mathematics Tue, 02 Jan 2018 19:00:01 ESTnews434121548Randomness a key in spread of disease, other 'evil'An unfortunate church dinner more than 100 years ago did more than just spread typhoid fever to scores of Californians. It led theorists on a quest to understand why many diseases - including typhoid, measles, polio, malaria, even cancer - take so much longer to develop in some affected people than in others.
https://phys.org/news/2018-01-randomness-key-disease-evil.html
Mathematics Tue, 02 Jan 2018 12:50:29 ESTnews434119821Statistical test relates pathogen mutation to infectious disease progressionNucleic acid sequencing methods, which determine the order of nucleotides in DNA fragments, are rapidly progressing. These processes yield large quantities of sequence data—some of which is dynamic—that helps researchers understand how and why organisms function like they do. Sequencing also benefits epidemiological studies, such as the identification, diagnosis, and treatment of genetic and/or contagious diseases. Advanced sequencing technologies reveal valuable information about the time evolution of pathogen sequences. Because researchers can estimate how a mutation behaves under the pressure of natural selection, they are thus able to predict the impact of each mutation—in terms of survival and propagation—on the fitness of the pathogen in question. These predictions lend insight to infectious disease epistemology, pathogen evolution, and population dynamics.
https://phys.org/news/2017-12-statistical-pathogen-mutation-infectious-disease.html
Mathematics Thu, 28 Dec 2017 15:56:06 ESTnews433697657Scientists explain how the process of erosion forms unusual shapes and structuresScientists at Skolkovo Institute of Science and Technology have determined through mathematical modeling that the process of erosion optimizes the shapes of disintegrating materials.
https://phys.org/news/2017-12-scientists-erosion-unusual.html
Mathematics Thu, 28 Dec 2017 06:39:39 ESTnews433665569Mathematicians obtain new fundamental results in functional inequalitiesInvited professor of RUDN University Durvudkhan Suragan and a team of colleagues have obtained and established new types of functional inequalities. Hardy's inequalities are an important type of problem solving in mathematical physics. The results of the study were published in Advances in Mathematics.
https://phys.org/news/2017-12-mathematicians-fundamental-results-functional-inequalities.html
Mathematics Wed, 27 Dec 2017 07:49:09 ESTnews433583342Mathematical model reveals solution to sloshing coffeeAmericans drink an average of 3.1 cups of coffee per day; for many people, the popular beverage is a morning necessity. When carrying a liquid, common sense says to walk slowly and refrain from overfilling the container. But when commuters rush out the door with coffee in hand, chances are their hastiness causes some of the hot liquid to slosh out of the cup. The resulting spills, messes, and mild burns undoubtedly counteract coffee's savory benefits.
https://phys.org/news/2017-12-mathematical-reveals-solution-sloshing-coffee.html
Mathematics Thu, 21 Dec 2017 17:22:47 ESTnews433099357Can math predict what you'll do next?Good scientists are not only able to uncover patterns in the things they study, but to use this information to predict the future.
https://phys.org/news/2017-12-math-youll.html
Mathematics Fri, 15 Dec 2017 09:50:01 ESTnews432551300First mathematical network model for the Battle of the SexesWhy is it easier to bridge conflicting interests in one neighbourhood than in another? Social scientists think that the residents' social networks may play an important role in the answer to this question. Sociologists and theoretical physicists from Utrecht University have recently created a theoretical model for this complex problem. Using the popular game Battle of the Sexes, they have shown how different social network structures have different effects on overcoming conflicts of interest. The results of their study were recently published in Scientific Reports.
https://phys.org/news/2017-12-mathematical-network-sexes.html
Mathematics Fri, 15 Dec 2017 07:05:33 ESTnews432543920Mathematicians crack 44-year-old problemIsrael Institute of Technology and Alexandr Polyanskii from the Moscow Institute of Physics and Technology (MIPT) have proved László Fejes Tóth's zone conjecture. Formulated in 1973, it says that if a unit sphere is completely covered by several zones, their combined width is at least π. The proof, published in the journal Geometric and Functional Analysis, is important for discrete geometry and enables mathematicians to formulate new problems.
https://phys.org/news/2017-12-mathematicians-year-old-problem.html
Mathematics Wed, 13 Dec 2017 06:27:35 ESTnews432368730New statistical method links vast records, shows negative effect of Texas voter ID lawAs state voter identification (ID) laws across the country are being contested amid questions about the integrity of the voting process, researchers have developed a new statistical method that not only matches multiple records with precision, but can also identify the scope of discrimination when applied to voter ID laws. Recently featured in the American Statistical Association's journal Statistics and Public Policy, the research titled "ADGN: An Algorithm for Record Linkage Using Address, Date of Birth, Gender and Name" was applied to a 2011 Texas voter ID law (S.B. 14), which the United States Department of Justice investigated as possibly discriminatory.
https://phys.org/news/2017-12-statistical-method-links-vast-negative.html
Mathematics Mon, 11 Dec 2017 15:38:34 ESTnews432229109Mathematical model mimics melanomaCancer cells' ability to tolerate crowded conditions may be one key to understanding tumor growth and formation, according to a mathematical model that has been applied to cancer cell growth for the first time. The model can replicate patterns of melanoma cell growth seen in laboratory experiments by controlling the 'exclusion area'—the amount of space required—around two types of simulated cells as they grow and spread. A paper describing the model and experiments appears in a recent issue of the journal Scientific Reports.
https://phys.org/news/2017-12-mathematical-mimics-melanoma.html
Mathematics Fri, 01 Dec 2017 08:29:11 ESTnews431339335New computational methodology gives unexpected answers to two Hilbert problemsA paper titled "Numerical infinities and infinitesimals: Methodology, applications, and repercussions on two Hilbert problems," published in EMS Surveys in Mathematical Sciences describes a recent computational methodology related to the separation of mathematical objects from numeral systems involved in their representation. It allows mathematicians to work with infinities and infinitesimals numerically in a unique computational framework in all situations requiring these notions. The methodology does not contradict Cantor's, and is based on Euclid's Common Notion no. 5, "The whole is greater than the part," applied to all quantities (finite, infinite, and infinitesimal) and to all sets and processes (finite and infinite). The non-contradictory of the approach has been proven by Italian logician Prof. Gabriele Lolli.
https://phys.org/news/2017-11-methodology-unexpected-hilbert-problems.html
Mathematics Mon, 27 Nov 2017 05:44:42 ESTnews430983874How to cut your lawn for grasshoppersPicture a grasshopper landing randomly on a lawn of fixed area. If it then jumps a certain distance in a random direction, what shape should the lawn be to maximise the chance that the grasshopper stays on the lawn after jumping?
https://phys.org/news/2017-11-lawn-grasshoppers.html
Mathematics Wed, 22 Nov 2017 02:07:02 ESTnews430538808Mathematician's study of 'swarmalators' could direct future scienceHow does the Japanese tree frog figure into the latest work of noted mathematician Steven Strogatz? As it turns out, quite prominently.
https://phys.org/news/2017-11-mathematician-swarmalators-future-science.html
Mathematics Fri, 17 Nov 2017 18:05:52 ESTnews430164338New paper answers causation conundrumIn a new paper published in a special issue of the Philosophical Transactions of the Royal Society A, SFI Professor Jessica Flack offers a practical answer to one of the most significant, and most confused questions in evolutionary biology—can higher levels of organization drive the behavior of lower-level components?
https://phys.org/news/2017-11-paper-causation-conundrum.html
Mathematics Fri, 17 Nov 2017 09:30:04 ESTnews430132461Millions, billions, trillions—how to make sense of numbers in the newsNational discussions of crucial importance to ordinary citizens – such as funding for scientific and medical research, bailouts of financial institutions and the current Republican tax proposals – inevitably involve dollar figures in the millions, billions and trillions.
https://phys.org/news/2017-11-millions-billions-trillionshow-news.html
Mathematics Fri, 17 Nov 2017 07:50:02 ESTnews430127070Researchers use 3-D printers to turn century-old theory into complex schwarzitesRice University engineers are using 3-D printers to turn structures that have until now existed primarily in theory into strong, light and durable materials with complex, repeating patterns.
https://phys.org/news/2017-11-d-printers-century-old-theory-complex.html
Mathematics Thu, 16 Nov 2017 12:47:06 ESTnews430058808Brain research is underserved by statistics, says Carnegie Mellon's Rob KassBrain-related disorders impact almost everyone, either directly or through family or friends. For many of the disorders, whether they're psychiatric or neurological, there are basic scientific descriptions and valuable treatment options, but none has a satisfactory cure because the underlying mechanisms are not fully understood.
https://phys.org/news/2017-11-brain-underserved-statistics-carnegie-mellon.html
Mathematics Thu, 09 Nov 2017 13:39:42 ESTnews429457175Researchers offer new information warfare modelResearchers have collaborated to develop a mathematical model of information warfare in a society under periodic destabilization. The authors of the paper, which was published in Mathematical Models and Computer Simulations, have determined for the first time how periodic surges of propaganda in the mass media can disturb the balance between two opposing parties. In addition to providing an analytical solution to the problem, the researchers have conducted a numerical experiment that illustrates their model.
https://phys.org/news/2017-11-warfare.html
Mathematics Thu, 09 Nov 2017 09:42:17 ESTnews429442925Has protecting marine species become a job for statisticians?Fishermen have no way of separating the fish they catch when they cast their nets at sea. Protected species and fish with no market value—the hammerhead shark, for example—end up being trapped and dying for no reason. In an attempt to minimize this incidental fishing, statisticians from the University of Geneva (UNIGE, Switzerland), Dalhousie University (Halifax, Canada) and the Australian National University (Canberra) have devised a new statistical method for predicting bycatches more accurately in the future. The technique, which is explained in full in the journal Annals of Applied Statistics, can also be applied to other research fields, including health economics, medicine and educational science.
https://phys.org/news/2017-11-marine-species-job-statisticians.html
Mathematics Wed, 08 Nov 2017 12:40:32 ESTnews429367222Paradoxical persistence of all negative growths from reformulation of Markowitz theoremAn improvement on the famous Markowitz theorem may have the potential to not only more accurately predict the next financial crises, but also the outbreak of pests and diseases, or whether a patient will have a heart attack in two hours or not.
https://phys.org/news/2017-11-paradoxical-persistence-negative-growths-reformulation.html
Mathematics Tue, 07 Nov 2017 12:12:44 ESTnews429279153Simple statistics can be good enoughStudy of the mismatch between spatial environmental data and a commonly used statistical analysis suggests simpler statistics are sufficient in many cases.
https://phys.org/news/2017-11-simple-statistics-good.html
Mathematics Tue, 07 Nov 2017 09:10:03 ESTnews429267686Innovative statistical methods shed light on extent of modern slavery in US, worldPolicymakers, law enforcement and advocates can now better identify and target modern slavery thanks to the work of human rights experts and researchers whose application of unique statistical methods yields more precise figures on its existence and extent. The groundbreaking work appears in the October issue of Chance, which features a series of articles written by authority figures on the subject of modern slavery.
https://phys.org/news/2017-11-statistical-methods-extent-modern-slavery.html
Mathematics Thu, 02 Nov 2017 11:24:43 ESTnews428840678