## Math NewsJuly 20th, 2009 Patrick Stein

An aggregation of some of the math blogs that I follow.

Math News: Items from date 2012-05-02 (1 - 3 of about 3) (xml) (Feedlist)

## Elsevier&#8217;s recent update to its letter to the mathematical communitygowers (02.05.2012 23:55h)

Elsevier has recently put out a new statement giving details of some changes it has made. In their own words, In February, we informed you of a series of important changes that we are making to how the Elsevier mathematics program will be run. In this letter, we would like to update you on where we currently stand, and inform you of some new initiatives we have undertaken based upon the feedback we have received from the community. I have known for some time that they were going to make an announcement of this kind, and that it would involve ... [Link]

## Bell&#8217;s-inequality-denialist Joy Christian offers me \$200K if scalable quantum computers are builtScott (02.05.2012 16:46h)

Joy Christian is the author of numerous papers claiming to disprove Bell’s theorem. Yes, that Bell’s theorem: the famous result from the 1960s showing that no local hidden variable theory can reproduce all predictions of quantum mechanics for entangled states of two particles. Here a “local hidden variable theory” means—and has always meant—a theory where Alice gets some classical information x, Bob gets some other classical information y generally correlated with x , then Alice and Bob choose which respective experiments to perform, and finally Alice sees a measurement outcome that’s a function only of her choice and of x ... [Link]

## A look at a few Tripos questions IVgowers (02.05.2012 16:05h)

This post belongs to a series that began here. Next up is a question about integration. 11B. Let be continuous. Define the integral . You are not asked to prove existence. Suppose that are real numbers such that for all . Stating clearly any properties of the integral that you require, show that . The function is continuous and non-negative. Show that . Now let be continuous on . By suitable choice of show that , and by making an appropriate change of variable, or otherwise, show that . The first part of this question is something I recommend practising ... [Link]

Item (1 - 3 of about 3)

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