Jacob P. Matherne


Upcoming activities


  1. 6.3 - 6.7.2024, Attending Richard Stanley's 80th Birthday Conference, Harvard University, Boston, MA.
  2. 6.16 - 6.21.2024, Invited to participate in the Arrangements, Matroids and Logarithmic Vector Fields at Mathematisches Forschungsinstitut Oberwolfach, Germany.
  3. 7.8 - 7.12.2024, Invited to speak in the Suzhou workshop on matroid theory at Soochow University, Suzhou, China.
  4. 3.3 - 3.7.2025, Co-organizing AIM Workshop "The Geometry of Polynomials in Combinatorics and Sampling" at the American Institute of Mathematics, Caltech, Pasadena, CA.

Conference Organization


  • I am a co-organizer of the AIM Workshop "The Geometry of Polynomials in Combinatorics and Sampling" at the American Institute of Mathematics on March 3 - 7, 2025.
  • I was a co-organizer of the Summer School on Geometric Representation Theory at IST Austria on July 9 - 13, 2018.

Past activities


  1. 4.26.2024, Spoke on "Hilbert–Poincaré polynomials from geometric lattices" in the Duke University Combinatorics Seminar, Duke University, Durham, NC.
  2. 4.20 - 4.21.2024, Spoke on "Hilbert–Poincaré polynomials from geometric lattices" in the AMS Special Session on Posets in algebraic and geometric combinatorics at the AMS Spring Central Sectional Meeting, University of Wisconsin-Milwaukee, WI.
  3. 3.23.2024, Spoke on "Examples of Lorentzian polynomials" in the Triangle Lectures in Combinatorics, UNC Greensboro, Greensboro, NC.
  4. 3.17 - 3.20.2024, Research visit to University of Colorado Boulder to visit Karola Mészáros and Avery St. Dizier, CU Boulder, CO.
  5. 2.12 - 2.16.2024, Spoke on "Examples of Lorentzian polynomials in combinatorics and representation theory" in the KTH Combinatorics Seminar, KTH Royal Institute of Technology, Stockholm, Sweden.
  6. 11.17 - 11.19.2023, Attended the GRTM workshop at UNC Chapel Hill, NC.
  7. 11.18.2023, Attended the Triangle Lectures in Combinatorics at NC State University, Raleigh, NC.
  8. 10.16 - 10.18.2023, Assisted in preparatory lectures/exercise sessions for June Huh's Chow Lectures at MPI Leipzig.
  9. 7.10 - 7.14.2023, Spoke on "Examples of Lorentzian polynomials in combinatorics and representation theory" in the SIAM Applied Algebraic Geometry (AG23) Minisymposium on Lorentzian and Hyperbolic Polynomials, Eindhoven University of Technology, Eindhoven, The Netherlands.
  10. 6.7.2023, Spoke on "Polynomials in combinatorics and representation theory" in the Discrete Math and Geometry Seminar, TU Berlin.
  11. 5.9.2023, Spoke on "Polynomials in combinatorics and representation theory" in the Oberseminar on Diskrete-Mathematik-Geometrie und Optimierung, Goethe Universität, Frankfurt am Main.
  12. 3.22 - 3.24.2023, Spoke on "Matroids in representation theory" at the Hausdorff Center for Mathematics (HCM) retreat, Bad Breisig, Germany.
  13. 3.13 - 3.17.2023, Spoke on "Poincaré polynomials in matroid theory" in the Algebraic Aspects of Matroid Theory workshop, Banff International Research Station (BIRS), Canada.
  14. 3.4.2023, Spoke about "Life in mathematics" to 8th, 9th, and 10th graders at Billimoria High School, Panchgani, India.
  15. 11.3.2022, Spoke on "Polynomials in combinatorics" in Mathematisches Kolloquium, Bielefeld University.
  16. 9.5 - 9.9.2022, Spoke on "Top-heaviness and the Kazhdan–Lusztig theory of matroids" in Geometry meets combinatorics in Bielefeld, Bielefeld University.
  17. 8.29 - 9.2.2022, Spoke on "Lorentzian polynomials in combinatorics and representation theory" and participated in MATRIX workshop: Theory and Applications of Stable Polynomials, MATRIX Research Institute, Australia.
  18. 7.6 - 7.14.2022, Attended International Congress of Mathematicians 2022 (ICM 2022), (Online Format).
  19. 7.4.2022, Spoke on "Singular Hodge theory for combinatorial geometries" in the Combinatorial algebraic geometry: tropical and real workshop, International Centre for Theoretical Sciences (ICTS), Bangalore, India (Online Format).
  20. 6.13.2022, Spoke on "Kazhdan–Lusztig theory of matroids" in the Oberseminar Darstellungstheorie RWTH Aachen University.
  21. 4.27.2022, Spoke on "Equivariant log-concavity, matroids, and representation stability" in the F1 World Seminar, (Online Format).
  22. 4.2.2022, Attended Cascade lectures in combinatorics, University of Oregon (Online Format).
  23. 3.25.2022, Spoke on "Singular Hodge theory for combinatorial geometries" in the Algebra and Combinatorics Seminar, Indian Institute of Science (IISc), Bangalore, India.
  24. 2.28 - 3.11.2022, Gave a mini-course (five lectures) on "Polynomials in combinatorics" International Centre for Theoretical Sciences (ICTS), Bangalore, India.
  25. 1.31.2022, Spoke on "Singular Hodge theory for combinatorial geometries" in the Oberseminar on Arrangements and Symmetries, Ruhr-Universität Bochum (Online Format).
  26. 12.6.2021, Spoke on "Equivariant log-concavity, hyperplane arrangements, and representation stability" in the Topology and Singularities Seminar, University of Wisconsin-Madison (Online Format).
  27. 11.8.2021, Spoke on "Singular Hodge theory for combinatorial geometries" in the Algebra and Geometry Seminar, Queen's University (Online Format).
  28. 5.1 - 5.2.2021, Spoke on "Logarithmic concavity for Schur and related polynomials" in the Algebraic and Combinatorial Aspects of Polytopes Special Session at the AMS Spring Western Sectional Meeting, San Francisco State University, CA (Online Format).
  29. 5.1 - 5.2.2021, Spoke on "Singular Hodge theory for combinatorial geometries" in the Geometric and Categorical Methods in Representation Theory Special Session at the AMS Spring Western Sectional Meeting, San Francisco State University, CA (Online Format).
  30. 4.24 - 4.25.2021, Attended Discrete Math Days 2021 (DMD 2021), Williams College (Online Format).
  31. 2.24.2021, Spoke on "Singular Hodge theory for combinatorial geometries" in the University of Washington Combinatorics Seminar, Seattle, WA (Online Format).
  32. 3.15 - 3.26.2021, Participated in an AIM SQuaRE on "Moduli spaces of connections with toral singularities" (together with Maitreyee Kulkarni, Neal Livesay, Bach Nguyen, and Daniel Sage) at the American Institute of Mathematics, San Jose, CA (Online Format).
  33. 12.7.2020, Spoke on "Singular Hodge theory for matroids" in the Combinatorics Seminar, Washington University in St. Louis, MO.
  34. 12.2.2020, Spoke on "Singular Hodge theory for matroids: the Top-Heavy Conjecture" in the Special MIT-Harvard-MSR Combinatorics Seminar, Massachusetts Institute of Technology, Boston, MA (Online Format).
  35. 11.6.2020, Spoke on "Singular Hodge theory for combinatorial geometries" in the University of Bonn Oberseminar in Representation Theory, Bonn, Germany (Online Format).
  36. 8.13 - 8.14.2020, Attended Arrangements at Home III, Western University (Online Format).
  37. 7.6 - 7.24.2020, Attended FPSAC 2020 Online, Bar-Ilan University, Ramat-Gan, Israel (Online Format).
  38. 6.25.2020, Attended Qolloquium: Quivers, Representations, Resolutions (Online Format).
  39. 6.16 - 6.16.2020, Attended AlCoVE: an Algebraic Combinatorics Virtual Expedition (Online Format).
  40. 6.11 - 6.12.2020, Attended Arrangements at Home II, Western University (Online Format).
  41. 5.14 - 5.15.2020, Spoke on "A semi-small decomposition of the Chow ring of a matroid" in Arrangements at Home, Western University (Online Format).
  42. 5.11 - 5.15.2020, Attended Amplitudes Annual Conference at Brown University, Providence, RI (Online Format).
  43. 1.27 - 1.31.2020, Participated in an AIM SQuaRE on "Moduli spaces of connections with toral singularities" (together with Maitreyee Kulkarni, Neal Livesay, Bach Nguyen, and Daniel Sage) at the American Institute of Mathematics, San Jose, CA.
  44. 1.23.2020, Spoke on both "Singular Hodge theory of matroids" and "Logarithmic concavity of weight multiplicities for irreducible sln(C)-representations" in the Oberseminar, Max Planck Institute for Mathematics, Bonn, Germany.
  45. 12.14 - 12.16.2019, Spoke on "Logarithmic concavity of weight multiplicities for irreducible sln(C)-representations" in the Geometry and Representation Theory mini-conference, University of California at Riverside, CA.
  46. 11.9 - 11.10.2019, Spoke on "Logarithmic concavity of weight multiplicities for irreducible sln(C)-representations" in the AMS Special Session on Geometric Methods in Representation Theory at AMS Fall Western Sectional Meeting, University of California at Riverside, CA.
  47. 10.15.2019, Spoke on "Singular Hodge theory of matroids" in the Algebra Seminar at the University of Oregon.
  48. 9.4 - 9.8.2019, Gave a Karcher Colloquium titled "Two problems about hyperplane arrangements" and had a research visit with Greg Muller at the University of Oklahoma, Norman, OK.
  49. 7.22 - 7.26.2019, Working group leader for "Geometry and combinatorics of matroids" group at SageMath and Macaulay2 - an Open Source Initiative, Institute for Mathematics and its Applications, University of Minnesota.
  50. 6.23 - 6.29.2019, Spoke on "Logarithmic concavity of Schur and related polynomials" in the KIAS Workshop on Algebra-Geometry-Combinatorics and had a research visit (to visit June Huh), Korea Institute for Advanced Study (KIAS).
  51. 6.17 - 6.21.2019, Attended Cluster Algebras 2019, RIMS, Kyoto University, Kyoto, Japan.
  52. 5.21 - 5.31.2019, Attended and spoke on "Singular Hodge theory of matroids" at Arrangements at Western, University of Western Ontario, London, ON, Canada.
  53. 4.27 - 4.28.2019, Attended the Maurice Auslander Distinguished Lectures and International Conference, Woods Hole Oceanographic Institute, Quissett Campus, Woods Hole, MA.
  54. 4.22.2019, Spoke on "Kazhdan-Lusztig polynomials of matroids" in the Temple University Algebra Seminar, Temple University, Philadelphia, PA.
  55. 4.6.2019, Attended Discrete Math Days of the Northeast, University of Massachusetts Amherst, Amherst, MA.
  56. 4.4.2019, Spoke on "Two problems about hyperplane arrangements (secretly about matroids)" in the colloquium in the Department of Mathematics and Computer Science at Wesleyan University, Middletown, CT.
  57. 3.25.2019, Spoke on "Singular Hodge theory of matroids" in the Joint Princeton University and IAS Algebraic Geometry Seminar, IAS.
  58. 3.15 - 3.17.2019, Spoke on "Kazhdan-Lusztig polynomials of matroids" in the AMS Special Session on Representations of Lie algebras, algebraic groups, and quantum groups at AMS Spring Southeastern Sectional Meeting, Auburn University, Auburn, AL.
  59. 2.27.2019, Spoke in the Algebraic Geometry and Commutative Algebra Seminar, University of Notre Dame, South Bend, IN.
  60. 1.5 and 1.7.2019, Gave two talks on graph theory to ninth graders at the New English School, Pune, India.
  61. 1.4.2019, Gave a Math Colloquium at the Indian Institute of Science Education and Research (IISER), Pune, India.
  62. 12.8 - 12.22.2018, Gave a mini-course (four lectures) on "Introduction to cluster algebras and their types" in the School on Cluster Algebras, International Centre for Theoretical Sciences (ICTS), Bangalore, India.
  63. 11.17 - 11.19.2018, Spoke on "Singular Hodge theory of matroids" at Conferences on Geometric Methods in Representation Theory (CGMRT), University of Iowa, Iowa City, Iowa.
  64. 11.8 - 11.11.2018, Attended Combinatorics and beyond: the many facets of Sergey Fomin's mathematics (FominFest60), University of Michigan.
  65. 10.13 - 10.14.2018, Spoke on "Two problems about hyperplane arrangements (secretly about matroids)" at Binghamton University's Graduate Conference in Algebra and Topology (BUGCAT2018), also visiting collaborator Christopher Eppolito, Binghamton University, NY.
  66. 7.9 - 7.13.2018, Co-organizer of Summer School on Geometric Representation Theory, Institute of Science and Technology (IST) Austria, Klosterneuburg, Austria.
  67. 6.30 - 7.7.2018, Research visit (to visit June Huh), Korea Institute for Advanced Study (KIAS).
  68. 6.5 - 6.16.2018, Spoke on “Singular Hodge theory of matroids” at the 6th Encuentro Colombiano de Combinatoria (ECCO 2018), Universidad del Norte, Barranquilla, Colombia.
  69. 5.7 - 5.12.2018, Gave a poster on “Singular Hodge theory of matroids” at the Cluster Algebras and Mathematical Physics (CAMP) Conference, Michigan State University, East Lansing, MI.
  70. 4.25 - 4.30.2018, Spoke on “Singular Hodge theory of matroids” at the Maurice Auslander Distinguished Lectures and International Conference, Woods Hole Oceanographic Institute, Quissett Campus, Woods Hole, MA.
  71. 4.21 - 4.22.2018, Spoke on “Derived geometric Satake equivalence, Springer correspondence, and small representations” in the AMS Special Session on Noncommutative Algebra and Representation Theory at AMS Spring Eastern Sectional Meeting, Northeastern University, Boston, MA.
  72. 4.10.2018, Spoke on “Singular Hodge theory of matroids” in the Combinatorics Seminar, Binghamton University, Binghamton, NY.
  73. 4.9.2018, Spoke on “Derived geometric Satake equivalence, Springer correspondence, and small representations” in the Arithmetic Seminar, Binghamton University, Binghamton, NY.
  74. 4.7 - 4.11.2018, Research visit (to visit Christopher Eppolito and Jaiung Jun), Binghamton University.
  75. 3.19 - 3.23.2018, Attended Cluster Algebras: Twenty Years On, CIRM - Luminy, France.
  76. 11.28 - 12.2.2017, Research visit (to visit June Huh), Institute for Advanced Study (IAS).
  77. 11.19 - 11.24.2017, Research visit (to visit Eric Bucher), Michigan State University.
  78. 11.3.2017, Spoke on “Kazhdan–Lusztig polynomials of matroids” in the Representation Theory Seminar, Northeastern University, Boston, MA.
  79. 10.9 - 10.13.2017, Attended the workshop Geometric and Topological Combinatorics: Modern Techniques and Methods, MSRI, Berkeley, CA.
  80. 9.9 - 9.10.2017, Spoke on “Kazhdan–Lusztig polynomials of matroids” in the AMS Special Session on Combinatorics and Representation Theory of Reflection Groups: Real and Complex at AMS Fall Central Sectional Meeting, University of North Texas, Denton, TX.
  81. 9.9 - 9.10.2017, Spoke on “Derived geometric Satake equivalence, Springer correspondence, and small representations” in the AMS Special Session on Noncommutative and Homological Algebra at AMS Fall Central Sectional Meeting, University of North Texas, Denton, TX.
  82. 8.13 - 8.17.2017, Research visit (to visit Nicholas Proudfoot), University of Oregon.
  83. 8.6 - 8.11.2017, Sage Coding Sprint for Double Bruhat Cells and Cluster Algebras at the Institute for Mathematics and its Applications, University of Minnesota.
  84. 7.20 - 7.25.2017, Research visit (to visit Greg Muller), University of Oklahoma.
  85. 5.15 - 5.19.2017, Cluster Algebra Spring School, University of Connecticut.
  86. 5.6 - 5.7.2017, Spoke on “A combinatorial Fourier transform for quiver representation varieties in type A” in the AMS Special Session on Cluster Algebras in Representation Theory and Combinatorics at AMS Spring Eastern Sectional Meeting, Hunter College, City University of New York.
  87. 4.27 - 4.30.2017, Spoke on “A combinatorial Fourier transform for quiver representation varieties in type A” in the Maurice Auslander Distinguished Lectures and International Conference, Woods Hole Oceanographic Institute, Quissett Campus, Woods Hole, MA.
  88. 4.13.2017, Spoke on “The linear algebra of noncrossing spanning trees in a disk” in the Smith College Center for Women in Mathematics Thursday Lunch Talks at Smith College, Northampton, MA.
  89. 3.24 - 3.28.2017, Spoke on “A combinatorial Fourier transform for quiver representation varieties in type A” in the Algebra Seminar during a research visit (to visit Laura Rider) at University of Georgia, Athens, GA.
  90. 1.16 - 1.27.2017, Spoke on “A combinatorial Fourier transform for quiver representation varieties in type A” at Geometry and Representation Theory, Erwin Schrödinger International Institute for Mathematics and Physics (ESI), Vienna, Austria.
  91. 1.4 - 1.7.2017, Spoke on “A combinatorial Fourier transform for quiver representation varieties in type A” in the AMS Special Session on Representations and Related Geometry in Lie Theory at Joint Mathematics Meetings 2017, Hyatt Regency Atlanta and Marriott Atlanta Marquis.
  92. 1.2.2017, Spoke on "A combinatorial Fourier transform for quiver representation varieties in type A" in the research seminar at the Indian Institute of Science Education and Research (IISER), Pune, India.
  93. 11.11.2016, Spoke on “Presentations of cluster algebras” in the Cluster Algebras Seminar, University of Connecticut.
  94. 11.4 - 11.6.2016, Gave a poster on “Combinatorial Fourier transform for type A quiver representation varieties” Algebraic Geometry Northeastern Series (AGNES Fall 2016), University of Massachusetts-Amherst.
  95. 10.28 - 10.30.2016, Workshop on Symplectic Varieties and Geometric Representation Theory, University of North Carolina at Chapel Hill.
  96. 9.20.2016, Spoke on “A combinatorial Fourier transform for quiver representation varieties in type A” in the Algebra/Combinatorics/Geometry Seminar at Smith College.
  97. 8.10 - 8.19.2016, Spoke on "Derived geometric Satake equivalence, Springer correspondence, and small representations" at International Conference on Representations of Algebras (ICRA 2016), Syracuse University.
  98. 5.24 - 5.27.2016, Spoke on "Derived geometric Satake equivalence, Springer correspondence, and small representations" at Algebraic Groups, Quantum Groups and Geometry, Southeastern Lie Theory Workshop, University of Virginia.
  99. 5.9 - 5.13.2016, Advances in Geometric Representation Theory, University of Michigan.
  100. 4.7 - 4.10.2016, Spoke on "Derived geometric Satake equivalence, Springer correspondence, and small representations" at Symplectic Duality and Gauge Theory, Perimeter Institute for Theoretical Physics, Waterloo, Canada.
  101. 3.28 - 4.1.2016, Sheaves and modular representations of reductive groups, American Institute of Mathematics, San Jose, CA.
  102. 1.6 - 1.9.2016, Spoke on "Derived geometric Satake equivalence, Springer correspondence, and small representations" at the Joint Mathematics Meetings 2016, Washington State Convention Center, Seattle, WA.
  103. 11.6 - 11.7.2015, Workshop on Lie Groups, Lie Algebras and their Representations, Louisiana State University.
  104. 10.9 - 10.11.2015, Southeastern Lie Theory Workshop, North Carolina State University.
  105. 6.28 - 7.18.2015, PCMI Graduate Summer School: Geometry of moduli spaces and representation theory, Park City Math Institute.
  106. 6.1 - 6.5.2015, Sage Days 64.5: Cluster Algebras, Institute for Mathematics and its Applications, University of Minnesota.
  107. 3.13.2015, Spoke on "Combinatorics of Exceptional Sequences in Type A" in the Combinatorics Seminar, University of Minnesota.
  108. 1.12.2015, Spoke on "Linear Extensions and Exceptional Sequences" at the Joint Mathematics Meetings 2015, Henry B. Gonzalez Convention Center, San Antonio, TX.
  109. 8.28 - 12.1.2014, Geometric Representation Theory, MSRI.
  110. 8.4 - 8.8.2014, Kazhdan-Lusztig Theory and Soergel Bimodules, University of Oregon.
  111. 6.8 - 6.14.2014, Cluster Algebras, Snowbird Resort, Utah.
  112. 5.19 - 5.23.2014, Representations of Reductive Groups: A conference dedicated to David Vogan on his 60th birthday, MIT.
  113. 5.16 - 5.17.2014, Southeastern Lie Theory Workshop 2014, University of Georgia.
  114. 4.12 - 4.15.2014, Applications of Automorphic Forms in Number Theory and Combinatorics, Louisiana State University.
  115. 11.7.2013, Spoke on Computing Upper Cluster Algebras in the Commutative Algebra Seminar, University of Michigan.
  116. 8.5 - 8.9.2013, Quantum/Affine Schubert Calculus, University of Oregon.
  117. 5.10 - 5.12.2013, Southeastern Lie Theory Workshop 2013, Louisiana State University.
  118. 3.18 - 3.22.2013, Soergel Bimodules and Kazhdan-Lusztig Conjectures, Center for Quantum Geometry of Moduli Spaces.
  119. 12.16 - 12.18.2012, Southeastern Lie Theory Workshop 2012, College of Charleston.
  120. 10.13 - 10.14.2012, AMS Fall Southeastern Section Meeting; Special Session on Geometric and Algebraic Aspects of Representation Theory, Tulane University.
  121. 10.6 - 10.7.2012, Workshop on Lie Groups, Lie Algebras, and their Representations, Louisiana State University.
  122. 6.18 - 6.29.2012, Noncommutative Algebraic Geometry Summer Graduate Workshop, MSRI.
  123. 1.4 - 1.7.2012, Joint Mathematics Meetings 2012, Hynes Convention Center, Boston, MA.
  124. 5.31 - 6.4.2011, Summer School on Quantization and Related Topics, Center for Mathematics at the University of Notre Dame.