CAG@LOCS#21

Jun 10, 2008 16:43

My first (real) crepe had a lemony spread and strawberries, with vanilla ice-cream. I can see why some people love them so.

I wonder if the owners of Bean Bag Cafe would have designed the place more ostentatiously in a smaller or college town than in San Francisco; for being in the Haight it's somewhat more subdued than i'd've expected. Great coffee and crepes, though, and that's where i'll stop. Addendum: It didn't even occur to me to ask where the bean bags were. I was kinda hoping to sit on one. Maybe they're by request only.

I disboarded the trolley at Alamo Square and sat for a spell in the grass. The breeze and shade in the park at 4:00pm produced one of those moments that we sometimes think we live for. The painted ladies didn't impress me. I think this is one reason (or at least a good excuse) for my recent disinterest in taking pictures: I can find a photo of a great sight anywhere; if i take one myself, the reason is probably so that i can use it to call up memories of the event in my mind later. The punchcard i got from Birite Creamery will do just that and more (namely, eventually get me a free scoop of ice-cream). This day i met up with Jack and Kimi at Mission Dolores Park will for some reason last a while, i expect. Rarely do i feel so good around people i've known for so short a time. Probably means it's good that i'm not staying longer. Living in Blacksburg is making it hard enough to learn to let go.

My shuffles aren't enough for intersections of the affine Grassmannian with an arbitrary Schubert variety (i.e. one indexed by a non-core); in particular, the shape (3,1,1) cuts a reducible variety out of the t-stable subspace of M3×6. This is usually (if not always, as seems it should be) the case for non-cores, but for (3,1,1) the vanishing minors and shuffles generate a non-radical ideal, which makes the subsequent multidegree calculation in my program absurd. Of the cases small enough to compute on my 2.2 GHz Intel Core 2 Duo MacBook processor (shamelessly copied from "About This Mac" because i haven't a clue how (un)impressive that is), this is the only one with such a problem, but it lends worry to the possibility that the same issue may arise in a suitably large or irregular MASV (i.e. case when the shape is a core); it would be nice if this could never happen (and be proved), but it would've been extra nice for the vanishing minors and shuffles to generate the entire ideal in this more general case. So slip the hopes of a naïve but rational mathematician.

I need to be able to check for radicality; this requires much more computation time than the simple matter of multidegree. But in every case my laptop can handle, the calculation is at least being done correctly. I wonder if this will be enough for me to finagle some System X time during the Summer.

Some people are great researchers but choose to focus on teaching. I don't think the converse occurs often. But this raises an issue of mine. I want to employ myself in such a way as to be useful, to contribute as best i can to sentientkind. If i find that i really can't do this as a mathematician, i may still be able to find employment but i'm rather certain that i'll be disappointed with myself for taking up space that might be more profitably filled. Of course a position at an institution of lower prestige negates this issue, it presents the problem of an expectedly greater teaching load and hence less yet contribution by research. (And while i haven't forgotten the contributions to be made by teaching, in my case they're likely negligible in comparison; ask my students.) I've talked (honestly) about becoming a barista or a baker if i can't cut it as a decent mathematician. But that contributes next to nothing, especially given my introversion and aversion to confrontation (which would make me an uninteresting barista indeed). So what else might i do?

Honesty and truthfulness are not the same thing.

I hope my obsession with myself is a symptom of travel. When i get back for good i need to start focusing on others.
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