### Understanding mudslides and other debris flows through mathematics

(Phys.org) —Mudslides. Landslides. Volcanic debris flows. Avalanches. Falling rocks. They can come along so suddenly that people, homes, roads and even towns are buried or destroyed without much warning. ...

### Computer 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 ...

### Mathematicians 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 math ...

### A 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 ...

### New program simulates protein movements

Proteins are molecules involved in most of the biological processes that take place in our bodies. They have to move in order to fulfil many of their functions. For example, they open or close to keep and ...

### Generosity leads to evolutionary success, biologists show

With new insights into the classical game theory match-up known as the "Prisoner's Dilemma," University of Pennsylvania biologists offer a mathematically based explanation for why cooperation and generosity have evolved in ...

### Mathematician designs event cloaking device without using metamaterials

(Phys.org) —Miguel A. Lerma a mathematician at Northwestern University has uploaded a paper to the preprint server arXiv, in which he describes the design of an event cloaking device that doesn't requir ...

### The arithmetic of gun control

Aiming to quell heated national debate about gun control with factual answers, two UC Irvine mathematicians have designed parameters to measure how to best prevent both one-on-one killings and mass shootings in the United ...

### Questions for Heather Leslie: How can the market sustain fisheries?

Heather Leslie, assistant professor of environmental studies, says it's a mistake to assume market forces and sustainability must always be at loggerheads. In a recently published paper, Leslie and a group ...

### Internet traffic rise needs infrastructure upgrade

Australian internet traffic will increase by more than five times to hit one exabyte (one billion gigabytes) of data a month by 2016, a University of Adelaide mathematician and internet researcher has predicted.

### You clap, so I clap: Peer pressure drives applause

If you have just seen a play that you privately think is drivel, will you keep silent when everyone around you demands an encore?

### Texas banker puts up $1M for tricky math solution

A Texas banker is upping the ante to $1 million for whoever solves a tricky problem that's been dogging mathematicians since the 1980s.

### Researcher finds solution to problem in 19th-century theory of meromorphic functions

General theory of meromorphic functions in the complex plane began in the nineteenth century, when E. Picard proved his famous 'Picard's little theorem'. Then, in the 1920s, R. Nevanlinna created the modern ...

### Mathematician proves there are infinitely many pairs of prime numbers less than 70 million units apart

(Phys.org) —Mathematician Yitang Zhang of the University of New Hampshire, appears to have taken a major step in solving the twin prime conjecture. He's come up with a mathematical proof that shows that ...