The ACO Seminar (2025–2026)
Source: https://aco.math.cmu.edu/seminar.html Parent: https://aco.math.cmu.edu/index.html
\ The seminar will occur on Thursdays at 3:00pm in Wean Hall 8220.\ If you want to be a speaker or have questions or suggestions about the seminar, please contact the organizers: Quentin Dubroff at qdubroff~at~andrew.cmu.edu and Bob Krueger at rkrueger~at~andrew.cmu.edu. \ \
Spring 2026
January 22, 3:00pm, Wean 8220\
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January 29, 3:00pm, Wean 8220\ Boris Bukh, Carnegie Mellon University\ Most frequent subsequences in a word
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February 5, 3:00pm, Wean 8220\ Bernardo Subercaseaux, Carnegie Mellon University\ Breaking down graphs and hypergraphs into structured pieces, optimally and efficiently.
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February 12, 3:00pm, Wean 8220\ Han Huang, University of Missouri\ Can You Recover a Manifold from a Single Random Geometric Graph?
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February 19, 3:00pm, Wean 8220\ Michael Zheng, Emory University\ A Lovász-Kneser theorem for triangulations
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February 26, 3:00pm, Wean 8220\ Carl Schildkraut, Stanford University\ Ramsey Cayley graphs over non-abelian groups
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March 12, 3:00pm, Wean 8220\ Daniel Zhu, Princeton University\ Schur complements for tensors and multilinear commutative rank
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March 19, 3:00pm, Wean 8220\ Tracy Chin, University of Washington\ Valuated Delta Matroids and Principal Minors
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March 26, 3:00pm, Wean 8220\ Zion Hefty, University of Denver\ Improving R(3,k) in just two bites
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April 2, 3:00pm, Wean 8220\ Jonathan Tidor, Princeton University\ Discrete geometry, semialgebraic graphs, and the polynomial method
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April 9, 3:00pm, Wean 8220\ Vic Reiner, University of Minnesota\ TBA
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April 16\ NO ACO SEMINAR: instead, we recommend June Huh's talk in McConomy Auditorium at 2:00pm\
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April 23, 3:00pm, Wean 8220\ TBA, TBA\ TBA
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Fall 2025
September 4, 3:00pm, Wean 7218\ Dylan Altschuler, Carnegie Mellon University\ Dimension reduction, universal approximation, and nonlinear spectral gaps
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September 11, 3:00pm, Wean 7218\ Max Aires, Rutgers University\ Balancing extensions in posets of large width
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September 18, 3:00pm, Wean 7218\ Olha Silina, Carnegie Mellon University\ Perfect matchings, strongly connected orientations, and lattice theory
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September 25, 3:00pm, Wean 7218\ Jozsef Balogh, University of Illinois Urbana-Champaign\ Maximal independent sets in the middle two layers of the Boolean lattice
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October 2, 3:00pm, Wean 7218\ Yang Liu, Carnegie Mellon University\ On Inverse Theorems and Additive Combinatorics
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October 7, 3:00pm, Wean 7218 *NOTE: unusual day!\ Aiya Kuchukova, Georgia Tech\ Sampling colorings with fixed color class sizes
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October 9, 3:00pm, Wean 7218\ Luke Postle, University of Waterloo\ On Nash-Williams' Conjecture and its Generalizations
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October 23, 3:00pm, Wean 7218\ Dylan Langharst, Carnegie Mellon University\ Grünbaum’s inequality for probability measures
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October 30, 3:00pm, Wean 7218\ Sharon Robins, Carnegie Mellon University\ Integer decomposition property for pairs of polytopes
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November 6, 3:00pm, Wean 7218\ Aleksandre Saatashvili, Carnegie Mellon University\ Maximal sets of a given diameter in Hamming cubes
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November 13, 3:00pm, Wean 7218\ Amanda Priestly, UT Austin\ Probability and Parking
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November 13, 3:30pm, Wean 7218 *NOTE: double-header!\ John Byrne, University of Delaware\ Nonabelian Sidon sets and extremal problems on digraphs
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November 20, 3:00pm, Wean 7218\ Jinyoung Park, New York University\ The Convexity Conjecture, the Kahn-Kalai Conjecture, and introduction to k-thresholds
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December 4, 3:00pm, Wean 7218\ Maya Sankar, Institute for Advanced Study\ The Discrete Fundamental Group
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Past Schedule:
1995–96 1996–97 1998–99 1999–00 2000–01 2001–02 2004–05 2005–06 2006–07 2007–08 2008–09 2009–10 2010–11 2011–12 2012–13 2013–14 2014–15 2015–16 2016–17 2017-18 2018-19 2019-20 2020-21 2021-22 2022-23 2023-24 2024-25