Back from Boston

I spent the end of last week in Cambridge, where I gave a talk at MIT about the homology of Hurwitz spaces.

  • Good addition to Harvard Square: there’s now a used-book table on Mass Ave, like the ones I used to patronize on Broadway in Morningside Heights. I flipped through “Strike From Space,” a 1965 book by Phyllis Schlafly and Lester Ward, with the thesis that dopey Democrats were getting head-faked by the Soviets into escalating our commitment to Vietnam, which conflict was in fact not the firewall against an all-red Asia but a mere Soviet plot to distract us from an imminent nuclear first strike from orbit. Bad addition to Harvard Square: a Qdoba! I thought fast food was forbidden from Harvard Square by zoning laws, but apparently you can apply for an exemption — here’s Chipotle’s application to open a restaurant at One Brattle Square.
  • I had the pleasure of meeting Andy Putman and learning about a beautiful recent theorem of his; the moduli space of genus-g curves with full level N structure has the same second homology as M_g itself, for g at least 5. As a corollary, all these spaces have Picard number 1. I also learned a lot from Denis Auroux about mapping class group factorizations and symplectic Lefschetz fibrations — but more on this when I write a post or two on Hurwitz spaces.  Update: (25 Sep 08) Putman’s paper is now on the arXiv.
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5 thoughts on “Back from Boston

  1. Jason Starr says:

    What do you consider fast food? When we were grad students, there was a Chili’s on Mt. Auburn a block from JFK.

  2. JSE says:

    Loosely speaking, “fast food” means “no waiters.” So Chili’s doesn’t count. On the other hand, Au Bon Pain has to count if Qdoba does.

  3. Jason Starr says:

    The Au Bon Pain in the Holyoke Center has been there as long as I can remember. But I think ABP should get a pass because I love their pastries :)

  4. Adam says:

    And what about Finagle-a-Bagel? Definitely fast food even if a local chain. But I see your point.

  5. grad student says:

    “…but more on this when I write a post or two on Hurwitz spaces. ”

    Looking forward to it.

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