3 questions in June or: LoC workshops are the best
Here’s another old (forgotten?) draft to make up for my lack of original writing; this should’ve gone out in June… Instead of posting it, I had grand plans to write about the workshop itself — but...
View ArticleNew shiny toy: mathblogging.org gets a long overdue update
It’s been a lot of work and it has been delayed again and again, but here it is: mathblogging.org 2.0, powered by SubjectSeeker, the software behind ScienceSeeker. Read the announcement. I would like...
View ArticleWhy academic societies should start fully fledged social networks
The Joint Math Meetings 2013 ended with the AMS’s 125th Anniversary banquet. One of the things mentioned there was that the AMS is working on some form of online communities. That’s great, but doesn’t...
View Articlekids, exponential growth and 42
Last week, I was lucky enough to attend the W3C workshop on ebooks in NYC. This allowed me to visit some old and very dear friends. In a conversation with one of their kids, I pulled out a classic that …
View ArticlePublishers should invest in browser development (a comment at the scholarly...
In the tradition of posting stuff I write elsewhere, here’s a comment I just posted at the scholarly kitchen. It’s not really about the article. On a slightly different note. Despite many investments...
View ArticleAnother silly experiment: mobile apps for content delivery
Here’s another post from the category “yet another silly idea” or “don’t try this at home”. Keep in mind that I have absolutely no idea about app development. In short, I don’t know what I’m doing or...
View ArticleI don’t always use LaTeX, but when I do…
Since I haven’t published anything in almost two months, let me jot down one thought that has come to mind frequently over the past few months. If you use LaTeX … Well, first of all, are you sure you...
View ArticleName 5 top journals you read…
The AMS is currently running a survey (I think it’s members only? But if you got an invite, make sure to take the time). It has asked me the following question Please list the top 5 journals that you...
View ArticleMinor updates
It’s been a while since I’ve posted regularly but I have a secret blogging project planned to get back into the groove. In the mean time I switched themes to twenty twelve (just as WordPress releases...
View ArticleInterview at Fidus Writer
In the everlasting “what I’ve said elsewhere” category, I haven’t really written much about MathJax around here; MathJax as my job, that is. Perhaps I should do it more often. Anyway, Fidus Writer is a...
View ArticleThoughts on “the end ™” of MathML in Chrome/Chromium
Today, a Chromium team member announced that Chromium/Chrome does not plan to support MathML. (There’s a bit of flaming going on on that thread so please don’t fuel the flames.) First off, this does...
View ArticleMathML Forges On — notes, AAP leftovers, and a summary
“The end ™” of MathML in Chrome this week happened to coincide with a piece I had been working on for a while now and which was published at O’Reilly’s Programming blog (“MathML Forges On”) yesterday....
View ArticleA quick test post — Jetpack connect edition
You know how every blogger once in a while will have a test post that you find in your feed and then you click on it to learn more and it’s already deleted? I find that frustrating. So let’s not …
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Another test post — image sharing
You might think Los Angeles and snow are separate, but surprisingly it’s often not by far. Apart from the almost daily updates on NPR regarding snow packing strength during the winter (which is all...
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Home sweet home
For the next few months I’ll be in Bonn. As you can see, it’s not for the weather. Is there anything making this move worth while? Yes, definitely. …
View ArticleHow to publish all my research notes?
Last August, I finally finished my report for the DFG regarding my wonderful two years at Michigan. Part of this was to revisit all my old notes and publications. This has reminded me of something I’ve...
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Red workbook, p1
Source Transcript Arbeitsheft, 13. August 2006 bis 28. März 2007 Translation Workbook, 13. August 2006 to 28. März 2007 Notes This is the opening page of my first workbook, just after I had started to...
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Red workbook, p2
Source Transcript Koppelberg 20. Aug. 2006 Wied. \begin{align} C \subseteq S \text{ zentral} & :\Longleftrightarrow & \exists p \in E(\beta S) \cap K(\beta S): C \in p \\ &...
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Red workbook, p3
Source Transcript Def. \begin{align} x,y \text{ proximal} & \Leftrightarrow \forall V \in \mathfrak{U}(\overbrace{\Delta}^{\text{Diag. in $X\times X$}}) \exists s \in S: (sx, sy) \in V \\ &...
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Red workbook, p4
Source Transcript (a)=(b) $U\in \mathfrak{U}(y)$, $R(y,U)$ synd, $S = \bigcup_{t\in F_u} t^{-1}R(y,U)$ Sei $v\in L$ =$\exists t_U: t_U^{-1} R(y,U) \in v \Rightarrow t_u \cdot v \in \widehat{R(y,U)}$...
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Red workbook, p5
Transcript Satz (Auslander-Ellis) $X$ DS ueber $S$, $x\in X$ =$\exists y \in X: x \text{ prox } y$ & uniform rekurrent [Nimm $\epsilon \in E_\min(\beta S]$, setze $y= \epsilon \cdot x...
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Red workbook, p6
Source Transcript Folgerung: Ann. $1_S$ ex., $X = 2^S$. Prop. $C\subseteq x = \chi_C \in X$: $C$ zentral <=ex $y \in X: y$ prox. $x$, unif. rek, $y(1_S) = q$ ["=" wie Satz/Beweis; "<=" Setze $U =...
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Red workbook, p7
Source Transcript Kapitel 2 Dicke Teilmengen von $S$ Def: $T\subseteq S$ dick <=$\{ x^{-1}T : x\in S \}$ hat eDe Prop: Aeq: (a) $T$ dick; (b) $\forall e \subseteq_e S \exists y \in S: ( y \in …
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Red workbook, p8
Source Transcript Lemma $A \subseteq S$ (a) $A \in p \in K(\beta S)$ (also pws) =$\exists g \subseteq_e S: \stackrel{\stackrel{[unreadable]}{\downarrow}}{\beta S \cdot p} \subseteq \widehat{ \bigcup_{x...
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Red workbook, p9
Source Transcript “How far does a p-point travel?” $\rightarrow$ Flaskova: p-Pkt ⋅ p-Pkt kein p-Pkt $\curvearrowright$ Wegen der Eigenschaft p-Pkt muesste nicht $p+q$ in der Naehe von $p$ bleiben?...
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Red workbook, p10
Source Transcript Notiz: wieso $\mathbb{Z} + p \subseteq \mathbb{N^*}$ fuer $\mathbb{N^*} \ni p$ (evtl. min. id.pot.) Kopie von $\mathbb{Z}$? [this note was struck out by a check mark] Frage nicht...
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Red workbook, p11
Source Transcript Left page Bestanden bei: 60% Uebungen Korrektur d. Klausur mit SK Hindman & Strauss: 4.1.7: $A \in p \in \mathbb{N}^*+\mathbb{N}^*$ =$\exists k: |A \cap (A+k)| = \omega$ ?=$A$...
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Red workbook, p12
Source Transcript WA $\stackrel{p = q + r}{\Longrightarrow}$ (i) $\forall k \in \mathbb{N}, W_v \in r: | W_v \cap W_v+k| < \omega$ [struck through] (ii) $\forall k \in \mathbb{N}: k \in V...
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Red workbook, p13
Source Transcript First page 14. Sept. 2006 Fortsetzung Vortrag SK 3. collectionwise thick (cwt, cwdick), collectionwise pws (cwpws) 3.2 Notation. $\mathfrak{B} \subseteq \mathcal{P}(S), \mathfrak{V}...
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Red workbook, p14
Source Transcript Beweis: (a) =(b): $\mathfrak{B} \subseteq q \Rightarrow \mathfrak{D} = \{ D_e : e \in [ \mathfrak{B} ]^{< \omega} \} \subseteq q$ Nimm $g_e \in [S^{< \omega}]$ mit $\beta S...
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Red workbook, p15
Source Transcript Left page Forcing moeglich? Fuer strongly summable? kaputtmachen??????? Bem (* [[circled]]) [[boxed]] Right page [4.] Eine “elementare” Charakterisierung von “zentral” 4.1 Def....
View ArticleHEAR YE, HEAR YE! The Carnival of Math is in town
Gee, it’s been quiet around here! Between MathJax release work and diaper wrangling, blogging has been neglected. Inconceivable? INCONCEIVABLE! The kind overlords of the math blogosphere to whom we are...
View ArticleJust when I thought I was out
I recently pondered whether I should stop reading the few remaining mathoverflow and math.stackexchange feeds I keep in my feed reader (remember that archaic technology? I still use it heavily). Ever...
View ArticleCarnival of Mathematics 111
The math blogosphere is a friendly and relaxed placed. But there is one rule, I believe, we should all abide by: when The Aperiodical calls, you answer. And so I’m honored to join the un-secret society...
View ArticleMathJax best practices: avoid display:none
At MathJax we often get questions about specific examples of content / web design. Most of the time, people will show up on the MathJax User Group (the preferred choice), StackOverflow (semi-officially...
View ArticleBrowsers should be commodities
I think there is a world market for maybe five browsers — not Thomas J. Watson As my one two regular readers know, I work for a project that’s all about cross-browser support. It might, therefore, not...
View ArticleASCIIMathML to the rescue
Doug Schepers recently asked me for some advice for HTMLizing some mathematics. Doug is one of those exceptional people at the W3C who thrive in pushing the web and its standards forward. In this case,...
View ArticleIt has not escaped our notice…
Just a quick post to show I’m still alive. One of the reasons why I haven’t gotten to write recently is that we moved (yet again) to the...
View ArticleTiny blogging challenge
This year hasn’t exactly been great in terms of my blogging. Because life. After the Red Workbook concept tapered off I barely managed 1 post per month. Still, I miss writing. So I’m setting myself a...
View ArticleWelcome to Westdeutschland
(Week 1 of the challenge. Sorry for those looking for TeX/MathML related stuff. Sometimes, there are more urgent things, you know?) 25 years ago today, the wall fell in Berlin, opening up Germany,...
View ArticleLaTeX The Phantom Menace
(Week 2 of the challenge.) LaTeX is the path to the dark side. LaTeX leads to TeX. TeX leads to DVI. DVI leads to suffering. — not Yoda. Ever since joining MathJax, MathML has been a major part of my …
View ArticleLaTeX Something Something Darkside
[This is week 3 of the challenge. Ok, I’m stretching “every week” a bit here. I blame somebody’s first cold or alternatively Turkeys. Also, I cheated; this took longer than 30mins.] Darth Vader/Stewie:...
View ArticleOn reading and writing and silence
[week 4 of the challenge. It’s time for a quick post to catch up after last week’s delay.] As you know, this blogging challenge of mine is based on the observation that I would like to write more. And...
View Article#dotAstro FTW
[This is week 4 of the challenge. woohoo.] Today I only have ~15 min. This week, I happen to be in Chicago for dotAstronomy 6. This might be odd since I’m not an astronomer (nowhere near in fact). It …
View ArticleWhy I care about MathML
[This is week 6~7? Mpf, I missed one (and a half?), bummer. I’ll try to make up for it.] When I started this writing challenge, I had listed a couple of potential blog post titles. One of them was “Why …
View ArticleBonus round: Why I care about native MathML
[This is week 7 of the challenge but really a post to make up for dropping the ball on week 5.] (If the embedded YouTube video does not jump to 10:00 automatically, please do it manually.) Last week I...
View ArticleLooking back at my tiny blogging challenge
At the end of last year, I tried to motivate myself to write more so I set myself a tiny blogging challenge: writeo one post each week for the remaining weeks of the year, don’t spend more than for …
View Articlecatch my post at the Wiley Exchanges blog
It’s been quiet around here — too much work behind the scenes — BUT you can still read some of my usual incessant babbling over at the Wiley Exchanges Blog where I write about MathML and its role in...
View ArticleTalking, really, about work
Yesterday I was driving up to Northeim to pick up some Sandkastensand (because people had actually cleaned out the other store’s 150 25kg packs — are you kidding me). While in my car, I was listening...
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