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David Roberts
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David Roberts

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Just a small sample. You can ignore the Ghostbusters stuff if it doesn't help and scroll down to the profiles of the STEM women.

https://www.theguardian.com/commentisfree/2016/jul/26/ghostbusters-black-women-scientists-leslie-jones

#womeninstem  
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Excellent Monday here at the #IUTsummit. Doing tangential topics forced the speakers to start over at the beginning, and the resting and studying was well appreciated.
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Deformation Theory by Hartshorne

A very fun person to learn lecture from. But what is impressive here despite what few may describe as an arch-level abstractness introduction to modern algebraic geometry (speaking of his famous textbook, which is after all a super-compact edition of all EGAs, FGAs and SGAs), here he resorts to often clear geometric intuitions which motivate the development of the theory.

By the way, he also apologises to any of you having difficulties working out exercises in his famous textbook :-)

#deformation  
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Wow, this looks like a lot of fun.
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I just learned about the existence of Octave Online

http://octave-online.net/

Essentially an open source version of Matlab you just point your browser at and use. I still like SageMathClound for it's sheer all-encompasingness, but for first-year students who've only had a tiny bit of experience with computer algebra this is great.
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You can also use it online in the SageMathCloud: https://github.com/sagemath/cloud-examples/tree/master/octave

Plus you can use it in Sage worksheets, Jupyter notebooks, use the shell to track Octave projects with git (also stored on github of course!).
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It would be good to see the rest!
 
Nalini Anantharaman: one in the gallery of thirteen portraits of Women of Mathematics at #7ECM
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David Roberts

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Sara Zahedi, pictured, came to Sweden as a 10-year-old refugee from Iran and has now won the EMS Prize for her contributions to fluid mechanics.

Via https://plus.google.com/+ChandanDalawat/posts/RXoj7jU2VDj
Scientists from 80 countries flocked to Berlin this week to attend the European Congress of Mathematics. One main takeaway: some of the continent's leading mathematicians are surprisingly young - and very down-to-earth.
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Women have been so important in mathematics, and get short shrift to an unconscionable degree. Kudos SARAH ZAHEDI.
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Reporting in Science magazine on the article Women 1.5 Times More Likely to Leave STEM Pipeline after Calculus Compared to Men: Lack of Mathematical Confidence a Potential Culprit (http://dx.doi.org/10.1371/journal.pone.0157447):

Female students cited one reason for leaving more often than their male classmates did: believing that they did not understand the concepts of Calculus I well enough to go on to the next course. In fact, 35% of surveyed female students who had initially intended to major in STEM but decided against taking Calculus II selected this reason, as compared with just 14% of male students. (Other reasons for leaving—changing majors, too much time commitment, poor class experience, and an inadequate grade in Calculus I—were cited approximately equally by both genders.)

The researchers found that male and female students lost confidence equally over the course of the term, but female students entered the course with a lower confidence level. Therefore, the decision to stop pursuing calculus—and, by extension, to leave STEM—appeared to be influenced significantly by math confidence when entering college, the authors conclude. “The sad thing to me [is that] it wasn’t that women were losing confidence at higher rates than men,” Ellis says. “It was that they were coming in with lower confidence.”

http://www.sciencemag.org/careers/2016/07/low-math-confidence-discourages-female-students-pursuing-stem-disciplines
Efforts to improve math teaching and student confidence could help women persist in STEM
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The best sign I saw on my trip, methinks. I didn't follow that road, so I have no idea what it indicates.

And here was me thinking the centre of logic was in the vicinity of +Joel David Hamkins​ :-)

#logic
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We just missed each other! I was at nearby Yawwaronga at the time... 
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Four days and still going strong, #IUTsummit today in tweets
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+John Baez​ He isn't, according to the conference website:

https://www.maths.nottingham.ac.uk/personal/ibf/files/kyoto.iut.html
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Keep it up, +Christelle Vincent​! We're all cheering for you.
 
Today's #IUTsummit  tweets. I'm exhausted. Going to bed early to rally for tomorrow.
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Awww, thanks! Sometimes when I want to just phase out and take a little break, the thought of having nothing to tweet about keeps me focused. Is that weird?
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For the moment I am done with the last part of a textbook Introduction to Stable homotopy theory, the last part being about the Adams spectral sequence.

With Firefox go to

https://ncatlab.org/nlab/show/Introduction+to+Stable+homotopy+theory+--+2

otherwise use the pdf

https://dl.dropboxusercontent.com/u/12630719/StableHomotopyTheory-2.pdf

The first part, in turn, of this last part, up to the discussion of convergence,  provides full details with full proofs. The section on convergence presently just states Bousfield's convergence theorems, after introducing all the infrastructure needed to state and parse them. Maybe later there'll be an occasion that I add an exposition of these proofs, too.

Then the last part of the last part is a walk through the detailed computation of the classical Adams spectral sequence for the computation of the stable homotopy groups of spheres in low degrees.  I spell out all the lemmas required for running the May spectral sequence for the second page and give detailed examples of the kind of computations that one needs to do, enough that the interested reader should see how to proceed.

Beware that this last part is not completely finalized towards the end, but it should be well readable already. I will get back to this later.

For the main document see

https://ncatlab.org/nlab/show/Introduction+to+Stable+homotopy+theory
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Mathematician, among other things (husband, avid reader, cyclist, Christian,...)
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I live in Adelaide, Australia.

I am a pure mathematician who works on category theory and a smattering of related fields such foundations and higher geometry.

I am a visiting fellow in the School of Mathematical Sciences at the University of Adelaide.

My nLab page: http://ncatlab.org/nlab/show/David+Roberts
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