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Events

Seminars, workshops, and conferences I am organizing:

• Geometry and Topology Seminar
  co-organizing with Martina Rovelli, Miriam Kuzbary, Jie Min and Riccardo Pedrotti
  Fridays 2:30 - 3:30 at UMass Amherst, LGRT 1681.
• Reading Seminar on Automorphism Groups of Manifolds
  co-organized with Mihail Arabadji, Porter Morgan, Jie Min and Kevin Sackel
  Tuesdays 4:00 - 5:00 at UMass Amherst, LGRT 1685.
• K3: A new problem list in low-dimensional topology
  co-organized with Rob Kirby and Danny Ruberman
  AIM, Pasadena, CA, October 30-November 3, 2023.
• Braids in symplectic and algebraic geometry
  co-organized with Anand Deopurkar, Benson Farb, Ailsa Keating and Anthony Licata
  ICERM, Providence, RI, March 21-25, 2022.
• Knotted surfaces in 4-manifolds
  co-organized with Weimin Chen and Danny Ruberman
  University of Massachusetts, Amherst, October 26-28, 2018.
• Geometric structures on 3- and 4-manifolds
  co-organized with Tom Mark, Gordana Matic and Andy Wand
  Inter University Center, Dubrovnik, Croatia, June 11-15, 2018.
• Floer homologies and topology of 4-manifolds
  co-organized with Weimin Chen and Danny Ruberman
  University of Massachusetts, Amherst, April 8-9, 2017.
• Perspectives in topology and geometry of 4-manifolds
  co-organized with Tom Mark, Gordana Matic, Jongil Park and Andras Stipsicz
  Inter University Center, Dubrovnik, Croatia, June 6-10, 2016.
• Geometry and topology of symplectic 4-manifolds
  co-organized with Weimin Chen and Danny Ruberman
  University of Massachusetts, Amherst, April 24-26, 2015.
• Algebraic and Geometric Topology Workshop -- in honor of Turgut Önder's 65th birthday (poster)
  Cebirsel ve Geometrik Topoloji Çalıştayı -- Turgut Önder'in 65. yaşı onuruna (program)
  co-organized with Mustafa Korkmaz and Burak Ozbagci
  Middle East Technical University, Ankara, Turkey, January 9-10, 2015.
• Group actions on smooth 4-manifolds
  co-organized with Weimin Chen and Danny Ruberman
  University of Massachusetts, Amherst, October 25-26, 2013.
• Interactions between low dimensional topology and mapping class groups
  co-organized with John Etnyre and Ursula Hamenstädt
  MPIM, Bonn, July 1-5, 2013.
• Geometry and topology of smooth 4-manifolds
  co-organized with Jongil Park and Andras Stipsicz
  MPIM, Bonn, June 3-7, 2013.

Invited seminars, conferences, and colloquia

• 2025
  - Group Actions and Dynamics Seminar, University of Wisconcsin, Madison, WI, April 28.
  - Mapping Class Groups and Beyond, Middle East Technical University, Ankara, Turkey, May 14-18.
  - Conference on “Groups in topology and algebraic geometry”, Notre Dame, IL, June 16-20.
  
• 2024
  - Topology Seminar, University of South Florida, FL, March 18.
  - New Structures in Low-Dimensional Topology Satellite Workshop, Princeton University, Princeton, NJ, March 25-27.
  - Simons Collaboration on New Structures in Low-Dimensional Topology Annual Meeting, New York City, NY, March 28-29.
  - Geometry and Topology Seminar, MIT, Cambridge, MA, April 1.
  - Geometric Group Theory and Topology Seminar, TUFTS, Somerville, MA, April 2.
  - Low Dimensional Topology Seminar, Max Planck Institute, Bonn, Germany, April 23.
  - Gauge Theory, Low-Dimensional Topology, and Geometric Analysis Conference, Rutgers University, New Brunswick, May 13-17.
  - No Boundaries Seminar, University of Chicago, Chicago, IL, May 22.
  - Geometry and Topology Seminar, University of Chicago, Chicago, IL, May 23.
  - Braids Reunion Conference, ICERM, Providence, RI, July 15-19.
  
• 2023
  - Low Dimensional Topology Seminar, Max Planck Institute, Bonn, Germany, March.
  - Workshop on "Singularity theory", Erdös Center, Budapest, Hungary, March.
  - Workshop on "Low dimensional topology", Erdös Center, Budapest, Hungary, March.
  - Simons Collaboration on New Structures in Low-Dimensional Topology Annual Meeting, New York City, NY, March.
  - BIRS workshop on "Interactions between Symplectic and Holomorphic Convexity in 4 Dimensions", Banff, Canada, April.
  - Topology Seminar, Max Planck Institute, Bonn, Germany, May.
  - Seminari di Geometria, University of Pisa, Italy, May.
  - Geometry and Topology Seminar, Uppsala University, Sweden, May.
  - Workshop on "Interactions between singularity theory and low dimensional topology", Erdös Center, Budapest, Hungary, June.
  - Geometric Topology Seminar, Columbia University, New York, NY, October.
  - Workshop "K3: A new problem list in low-dimensional topology", American Institute of Mathematics, Palo Alto, CA, October.
  - Workshop on "Exotic 4-manifolds", Stanford University, CA, December.
  
• 2022
  - AMS Special Session on "Gauge theory, geometric analysis, and low-dimensional topology" (virtual), Spring Eastern Sectional, Tufts University, Medford, MA, March.
  - Workshop on "Interactions of gauge theory with contact and symplectic topology in dimensions 3 and 4" (virtual), Banff Research Centre, AB, Canada, March.
  - Workshop on "Braids in symplectic and algebraic geometry", ICERM, Providence, RI, March.
  - Scientific Approach Seminar (virtual), Ozyegin University, Istanbul, Turkey, April.
  - Workshop on "Braids in low-dimensional topology", ICERM, Providence, RI, April.
  - Colloquium, Western Washington University, WA, May.
  - 17th International Workshop in Real and Complex Singularities (plenary lecture), Universidade de São Paulo, São Carlos, Brazil, July.
  - Workshop on "4-Manifolds: From above and below", CIRM, Luminy, France, September.
  - Workshop on "Singularity theory and geometric topology", Research Institute for Mathematical Sciences, Kyoto University, Japan, October.
  - Topology Seminar, Osaka University, Osaka, Japan, November.
  - Four-dimensional Topology Conference, Osaka University, Osaka, Japan, November.
  - Topology Seminar, Kyushu University, Fukuoka, Japan, November.
  - Topology Seminar, Tokyo Institute of Technology, Japan, November.
  - Conference on "Deepening and evolution of applied singularity theory", Yokohama, Japan, November.
  - Workshop on "Complex and symplectic curve configurations'', Université de Nantes, France, December.
  
• 2021
  - AMS Special Session on "Geometry and topology in dimensions 3 and 4", Joint Mathematics Meetings (virtual), January.
  - Topology Seminar, Stanford University, CA, January.
  - Virtual Trisectors Seminar, February.
  - Virtual Trisectors Seminar, March.
  - Algebraic Geometry and Differential Topology Seminar, Alfred Renyi Institute, Budapest, Hungary, March.
  - AMS Special Session on "Gauge theory, geometry, and low-dimensional topology", Spring Eastern Sectional (virtual), March.
  - Topology Seminar, UC Riverside, CA, March.
  - Bahar Mathematics Meetings (virtual), Turkey, May.
  - Virtual Summer Trisectors Workshop, June.
  - Mini-symposium on "Low dimensional topology", European Congress of Mathematics (virtual), Slovenia, June.
  - Directed Reading Program Turkey (virtual), September.
  - Colloquium, University of Massachusetts at Amherst, MA, October.
  
• 2020
  - Lefschetz Fibrations Day, Hacettepe University, Ankara, Turkey, January.
  - Boston Graduate Topology Seminar, Boston College, MA, February.
  - AMS Special Session on "Interactions of gauge theory with contact and symplectic topology in dimensions 3 and 4" (virtual), Banff Research Centre, AB, Canada, March.
  - Workshop on "Braids in low-dimensional topology", ICERM, Providence, RI, April.
  - Colloquium, University of Hawaii, Honolulu, HI, USA, January.
  - AMS Special Session on "Gauge theory, geometric analysis, and low-dimensional topology" (virtual), Spring Eastern Sectional, Tufts University, Medford, MA, March.
  - Workshop on "Flavors of gauge theory", Fields Institute, Toronto, ON, Canada, May.
  - Hamilton Geometry and Topology Workshop, Dublin, Ireland, August.
  - Conference on "Four-manifolds and knot concordance", Max Planck Institute, Bonn, Germany, October.
  - Workshop on "Interactions of gauge theory with contact and symplectic topology in dimensions 3 and 4", Banff Research Centre, AB, Canada, March (virtual).
  - Virtual Summer Trisectors Workshop, June.
  - Conference on "Holomorphic curves and low dimensional topology", Inter University Center, Dubrovnik, Croatia, June (postponed).
  - Low-dimensional Topology Mini-symposium, 8th European Congress of Mathematics, Piran and Portorož, Slovenia, July (postponed).
  - Workshop on "Complex and symplectic curve configurations", Mittag-Leffler Institute, Stockholm, Sweden, July (postponed).
  - Workshop on "Trisections: new directions in low-dimensional topology", University of Nebraska-Lincoln, NE, August (canceled).
  - Geometry-Topology Seminar, Middle East Technical University, Turkey, November.
  - Virtual Winter Trisectors Workshop, December.
  
• 2019
  - Colloquium, CUNY Queensborough, Queens, NY, March.
  - Topology Seminar, Princeton University, Princeton, NJ, March.
  - Colloquium, Kansas State University, Kansas, KS, May.
  - Topology Seminar, University of Tokyo, Japan, May.
  - Topology Seminar, Tokyo Institute of Technology, Japan, May.
  - Workshop on "Lefschetz pencils and low dimensional topology", Hokkaido University, Japan, June.
  - Workshop on "Unifying 4-dimensional knot theory", Banff Research Centre, AB, Canada, November.
  
• 2018
  - Geometry and Topology Seminar, Dartmouth College, Hanover, NH, January.
  - Geometry & Topology Seminar, Caltech, Pasadena, CA, January.
  - AMS Special Session on "Trisections of 4-manifolds and low-dimensional topology", Northeastern University, Boston, MA, April.
  - Workshop on "Symplectic four-manifolds through branched coverings", American Institute of Mathematics, San Jose, CA, May.
  - Bob Gompf's Birthday Conference, Austin, TX, July.
  
• 2017
  - Workshop on "Low dimensional topology and gauge theory", Casa Matematica Oaxaca, Oaxaca, Mexico, August.
  - PATCH Seminar, Temple University, Philadelphia, PA, October.
  - Topology Seminar, University of Georgia, Athens, GA, October.
  
• 2016
  - Topology Seminar, University of Arkansas, Fayetteville, AR, February.
  - Workshop on "Interactions of gauge theory with contact and symplectic topology in dimensions 3 and 4", Banff Research Centre, AB, Canada, March.
  - Symplectic Geometry and Gauge Theory Seminar, Columbia University, New York, NY, April.
  - Symplectic Geometry Seminar, IAS / Princeton University, Princeton, NJ, April.
  - Workshop on "Flavors of gauge theory", Fields Institute, Toronto, ON, Canada, May.
  - Hamilton Geometry and Topology Workshop, Dublin, Ireland, August.
  - Conference on "Four-manifolds and knot concordance", Max Planck Institute, Bonn, Germany, October.
  - Colloquium, University of Massachusetts at Amherst, MA, November.
  
• 2015
  - Algebraic and Geometric Topology Workshop in honor of Turgut Onder's 65th Birthday, METU, Ankara, Turkey, January.
  - Gauge Theory, Topology, and Symplectic Geometry Seminar, Harvard University, Cambridge, MA, January.
  - Workshop on "Fukaya categories of Lefschetz fibrations", MIT, Cambridge, MA, March.
  - Great Lakes Geometry Conference, University of Michigan, MI, March.
  - Special Session on "Geometric Structures on Low-Dimensional Manifolds and their Invariants" at the AMS Sectional Meeting, Georgetown University, Washington, DC, March.
  - PIMS Symposium on "Geometry and Topology of Manifolds", University of British Columbia, Vancouver, BC, Canada, July.
  - "4-Manifolds Workshop" at SNU Topology Winter School, Seoul National University, Seoul, South Korea, December.
  
• 2014
  - Workshop on "Parameterized Morse Theory in Low-Dimensional and Symplectic Topology", Banff Research Centre, AB, Canada, March.
  - Workshop on "Topology and Invariants of 4-Manifolds", Simons Center for Geometry and Physics, Stony Brook, NY, August.
  - Geometry and Topology Seminar, Michigan State University, East Lansing, MI, October.
  - Geometry Seminar, University of Virginia, Charlottesville, VA, November.
  
• 2013
  - AMS Joint Mathematics Meetings, San Diego, CA, January.
  - Colloquium, Dartmouth College, Hanover, NH, February.
  - Colloquium, Arizona State University, Phoenix, AZ, February.
  - Colloquium, Lehman College, NYC, NY, February.
  - Workshop on "Interactions of gauge theory with contact and symplectic topology in dimensions 3 and 4", Banff Research Centre, AB, Canada, March.
  - Brussels-Cologne Symplectic and Contact Geometry Seminar, Brussels, Belgium, April.
  - International Gökova Geometry & Topology Conference, Muğla, Turkey, May.
  - Conference on "Topology and Invariants of 4-Manifolds", University of Minnesota, Minneapolis, MN, August.
  - Valley Geometry Seminar, University of Massachusetts, Amherst, MA, September.
  - Topology Seminar, University of Georgia, Athens, GA, November.
  
• 2012
  - Geometry-Topology Seminar, Temple University, Philadelphia, PA, January.
  - Topology Seminar, University of Texas, Austin, TX, February.
  - London Geometry Seminar, University College, London, UK, March.
  - Séminaire de Géométrie, Université de Lyon, Lyon, France, April.
  - Workshop on "Geometric Structures on Manifolds", Banff, Canada, April.
  - Georgia Topology Conference, Athens, GA, May.
  - Invariants in low dimensional topology and knot theory, Oberwolfach, Germany, June.
  - Geometry and Topology Seminar, Middle East Technical University, Ankara, Turkey, October.
  
• 2011
  - Geometry and Topology Seminar, Dartmouth College, Hanover, NH, January.
  - Colloquium, University of California, Irvine, CA, January.
  - Geometry-Topology Seminar, University of Pennsylvania, Philadelphia, PA, January.
  - Colloquium, SUNY Binghamton, NY, February.
  - Séminaire d'algèbre, Université Laval, Québec City, Québec, April.
  - Symplectic and Differential Geometry Seminar, Vanderbilt University, Nashville, TN, May.
  - Aarhus Gauge Theory Workshop, Aarhus, Denmark, August.
  - AMS Special Session on "Gauge Theory and Low-dimensional Topology", Ithaca, NY, September.
  - Topology Seminar, Brandeis University, Waltham, MA, September.
  - Oberseminar Geometrie, Topologie und Analysis, Universität zu Köln, Germany, November.
  
• 2010
  - Differential Geometry and Symplectic Topology Seminar, University of Minnesota, Minneapolis, MN, April.
  - Geometry and Topology Seminar, Boston College, Chestnut Hill, MA, October.
  - Topology Seminar, Stony Brook University, Stony Brook, NY, October.
  - Geometry Seminar, Boston University, Boston, MA, October.
  - Four-dimensional Topology Conference, Hiroshima University, Hiroshima, Japan, November.
  - Colloquium, Max Planck Institute for Mathematics, Bonn, Germany, December.
  
• 2009
  - Gauge Theory Seminar, Harvard University, Cambridge, MA, February.
  - Combinatorics Seminar, Tulane University, New Orleans, LA, February.
  - Topology Seminar, Tulane University, New Orleans, LA, February.
  - Algebra and Geometry Seminar, Syracuse University, NY, September.
  - Topology Seminar, Georgia Institute of Technology, Atlanta, GA, October.
  
• 2008
  - Geometry & Topology Seminar, Koc University, Istanbul, Turkey, March.
  - Geometry Seminar, University of Cape Town, South Africa, April.
  - Conference on "Singularity Theory from Geometric Viewpoints", Kyushu University, Fukuoka, June.
  - Topology Seminar, Brandeis University, Waltham, MA, September.