Patricia Hersh, Indiana University, phersh at indiana.edu

Cristian Lenart, SUNY Albany, lenart at albany.edu

Michelle Wachs, University of Miami, wachs at math.miami.edu

Official AMS web site for the meeting

We've deliberately invited some pairs/groups of collaborators, and I hope some people might even consider coming a day or two early or staying afterwards, e.g. to have more time to work together. Michelle Wachs will give a combinatorics seminar talk on Tuesday, April 8th. Also perhaps of interest is the distinguished lecture which Yuval Peres will give on Monday, April 7th (not part of the AMS meeting, but rather a departmental event).

Saturday, April 5th

8:30-9:15am, Louis Billera (Cornell University): The complete cd-index of a Bruhat interval (joint work with Francesco Brenti)

9:30-9:55am, Bridget Tenner (Depaul University): Bruhat order structure via permutation patterns

10-10:25am, Robert Donnelly (Murray State University, Kentucky): The numbers game and Dynkin diagram classification results

10:30-10:55am, Hugh Thomas (University of New Brunswick): Sorting orders on finite reflection groups and quotient-closed subcategories of representations of quivers (joint work with Drew Armstrong)

11:10am-noon, Michael Larsen, one hour invited address, Chemistry Building, Room 122, Solving equations in finite groups

2:30-3:15pm, Steve Mitchell (University of Washington): Smooth and palindromic Schubert varieties in affine Grassmannians (joint work with Sara Billey)

3:30-3:55pm, Anne Schilling (UC Davis): Schubert polynomials for the affine Grassmannian of the symplectic group (joint work with Thomas Lam and Mark Shimozono)

4-4:25pm, Julianna Tymoczko (University of Iowa): Geometric representations through Springer fibers and related varieties

4:30-4:55pm, William (Monty) McGovern (University of Washington): Singular sensations in the KGB picture

5-5:45pm, Sergey Fomin (University of Michigan): Cluster algebras associated with bordered surfaces (joint work with Michael Shapiro and Dylan Thurston)

Sunday, April 6th

8:30-8:55am, Brendon Rhoades (University of Minnesota): The cyclic sieving phenomenon, jeu-de-taquin promotion, and representation theory

9-9:25am, Caroline Klivans (University of Chicago): Generalized degree sequences and plethysm (joint work with Vic Reiner)

9:30-10:15am, Francesco Brenti (University of Rome): Parabolic Kazhdan-Lusztig and R-polynomials for quasi-minuscule quotients

10:30-10:55am, Pavlo Pylyavskyy (University of Michigan): Webs, promotion and cyclic cieving (joint work with Kyle Peterson and Brendon Rhoades)

2:30-3:15pm, Alex Postnikov (MIT): From total positivity to positroids (via the Grassmannian, the Bruhat order, and pattern avoidance)

3:30-3:55pm, Lauren Williams (Harvard University): Discrete Morse theory and the totally non-negative part of G/P

4-4:25pm, Mark Skandera (Lehigh University): A quantization of a theorem of Goulden and Jackson (joint work with Matjaz Konvanlinka)

4:30-4:55pm, Margaret Readdy (University of Kentucky): The Rees product of the cubical lattice with the chain (joint work with Patricia Muldoon)

5-5:25pm, Richard Ehrenborg (University of Kentucky): Exponential Dowling structures (joints work with Margaret Readdy)

5:30-5:55pm, John Shareshian (Washington University in St. Louis): Inversion arrangements and lower intervals in Bruhat order (joint work with Axel Hultman, Svante Linusson and Jonas Sj\"ostrand)

There will also be the following one hour invited addresses:

Shi Jin (University of Wisconsin): Hamiltonian systems and Liouville equations with discontinuous Hamiltonians

Michael Larsen (Indiana University): Solving equations in finite groups

Mircea Mustata (University of Michigan): Invariants of singularities in algebraic geometry

Margaret Wright (Courant Institute): Non-derivative optimization: mathematics, heuristics, or hack?

The Biddle Hotel at the Indiana Memorial Union, 812-855-2536, (on campus, 5 minutes walk from math department and 10-15 minutes walk from the center of downtown; the union has cafes and places to eat and is close to addtional ones. Actually, the union has just about everything under the sun -- a bowling alley, pottery studio, and there are rumors of a shooting range too, though I haven't found it yet.) This is where most math department visitors stay.

Hilton Garden Inn, 812-331-1335, (on the main square downtown, right in the midst of lots of restaurants and cafes; 10-15 minutes walk from math department)

Marriott Courtyard, 812-335-8000, (one block away from the center of downtown, so not quite as much in the midst of things as the Hilton, but close; also 10-15 minutes walk from math department)

Grant Street Inn (812-334-2353, walking distance from campus and near downtown, used somewhat often by the math department to host visitors)

College Motor Inn (812-336-6881, just a block or two north of the Hilton and looks like it's probably a nice place)

Some other options which are a few miles away from campus: Ramada (812-339-1919), Hampton Inn (812-334-2100), Towneplaces Suites (812-334-1234), Radisson (812-334-3252), EconoLodge (812-332-9453), Holiday Inn Express (812-334-8800), Fairfield Inn (812-331-1122), and Travelodge (812-339-6191)

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