Algebra & Algebraic Geometry Seminar - Mike Cummings - Paving Regular Nilpotent Hessenberg Schubert Cells by Affines: A Computational Approach. Date Thursday, 23 March 2023 10:30 am - 11:30 am

# Algebra & Algebraic Geometry Seminar - Ben Wormleighton - Embedding obstructions for non-toric rational surfaces from Newton-Okounkov bodies

Algebra & Algebraic Geometry Seminar - Ben Wormleighton - Embedding obstructions for non-toric rational surfaces from Newton-Okounkov bodies Date Thursday, 16 March 2023 10:30 am - 11:30 am

# Algebra & Algebraic Geometry Seminar - Gagandeep Virk - Vector Valued Modular Forms of dimension 3

Algebra & Algebraic Geometry Seminar - Gagandeep Virk - Vector Valued Modular Forms of dimension 3 Date Thursday, 2 March 2023 10:30 am - 11:30 am

# Algebra & Algebraic Geometry Seminar - Nasrin Altafi - Hilbert functions and Lefschetz properties of graded Artinian Gorenstein algebras

Algebra & Algebraic Geometry Seminar - Nasrin Altafi - Hilbert functions and Lefschetz properties of graded Artinian Gorenstein algebras Date Thursday, 16 February 2023 10:30 am - 11:30 am

# Algebra & Algebraic Geometry Seminar-Angelica Babei- The combinatorics of tiled orders in central simple algebras

Algebra & Algebraic Geometry Seminar-Angelica Babei- The combinatorics of tiled orders in central simple algebras Date Thursday, 2 February 2023 10:30 am - 11:30 am

# Special Topology Seminar - Guillem Cazassus - Extending down Donaldson-Floer theory

Special Topology Seminar - Guillem Cazassus - Extending down Donaldson-Floer theory Date Tuesday, 31 January 2023 10:30 am - 11:30 am

# Algebra & Algebraic Geometry Seminar-Brian Harbourne-Geproci sets: a confluence of geometry, algebra, combinatorics and representation theory

Algebra & Algebraic Geometry Seminar-Brian Harbourne-Geproci sets: a confluence of geometry, algebra, combinatorics and representation theory Date Thursday, 26 January 2023 10:30 am - 11:30 am

# Special Topology Seminar - Yvon Verberne - Symmetries of surfaces

Special Topology Seminar - Yvon Verberne - Symmetries of surfaces Date Friday, 20 January 2023 1:30 pm - 2:30 pm

# Algebra and Algebraic Geometry Seminar-Elisa Gorla- Universal Groebner bases of determinantal ideals-

Algebra and Algebraic Geometry Seminar-Elisa Gorla- Universal Groebner bases of determinantal ideals- Date Thursday, 19 January 2023 10:30 am - 11:30 am

# Algebra & Algebraic Geometry Seminar-Jeremy Usatine-Motivic integration for Artin stacks

Algebra & Algebraic Geometry Seminar-Jeremy Usatine-Motivic integration for Artin stacks Date Thursday, 12 January 2023 10:30 am - 11:30 am

# Algebra Seminar-Alun Stoke/Dan Barake - Classifying the Image of $\phi_p$ by Parameters of the Moduli Space for its $\phi$-congruence Subgroup/A primer on vertex operator algebra theory

Algebra Seminar-Alun Stoke/Dan Barake - Classifying the Image of $\phi_p$ by Parameters of the Moduli Space for its $\phi$-congruence Subgroup/A primer on vertex operator algebra theory Date Wednesday, ...

# Algebra Seminar- Ilias S. Kotsireas- Enumerative combinatorics and coding theory

Algebra Seminar- Ilias S. Kotsireas- Enumerative combinatorics and coding theory Date Wednesday, 23 November 2022 1:30 pm - 2:30 pm

# Computational Science and Engineering Seminar - Amir-massoud Farahmand - Accelerated Planning and Reinforcement Learning Algorithms

Computational Science and Engineering Seminar - Amir-massoud Farahmand - Accelerated Planning and Reinforcement Learning Algorithms Date Wednesday, 23 November 2022 12:30 pm - 1:30 pm

# Algebra and Algebraic Geometry Seminar - Stefano Canino - Complete intersections on Veronese surfaces

Algebra and Algebraic Geometry Seminar - Stefano Canino - Complete intersections on Veronese surfaces Date Wednesday, 16 November 2022 1:30 pm - 2:30 pm

# Algebra and Algebraic Geometry Seminar - Jen Biermann - Algebraic invariants of weighted oriented graphs

Algebra and Algebraic Geometry Seminar - Jen Biermann - Algebraic invariants of weighted oriented graphs Date Wednesday, 2 November 2022 1:30 pm - 2:30 pm

# Algebra and Algebraic Geometry Seminar - Büşra Atar/Adrian Cook - Hessenberg Patch Ideals/Lattice Groupoids: An Introduction

Algebra and Algebraic Geometry Seminar - Büşra Atar/Adrian Cook - Hessenberg Patch Ideals/Lattice Groupoids: An Introduction Date Wednesday, 26 October 2022 1:30 pm - 2:30 pm

# Algebra and Algebraic Geometry Seminar - Thanh Thai Nguyen - Lower bounds on the initial degrees and containments of ideals

Algebra and Algebraic Geometry Seminar - Thanh Thai Nguyen - Lower bounds on the initial degrees and containments of ideals Date Wednesday, 19 October 2022 1:30 pm - 2:30 pm

# Algebra and Algebraic Geometry Seminar - Lauren Cranton Heller - Regularity of powers of multigraded ideals

Algebra and Algebraic Geometry Seminar - Lauren Cranton Heller - Regularity of powers of multigraded ideals Date Wednesday, 5 October 2022 1:30 pm - 2:30 pm

# Algebra and Algebraic Geometry Seminar - Kieran Bhaskara - Comparing invariants of toric ideals of graphs & Runyue Wang - Knutson ideals

Algebra and Algebraic Geometry Seminar - Kieran Bhaskara - Comparing invariants of toric ideals of graphs & Runyue Wang - Knutson ideals Date Wednesday, 28 September 2022 1:30 pm - 2:30 pm

# Algebra and Algebraic Geometry Seminar - Adam Van Tuyl - Vertex decomposable simplicial complexes: h-vectors and f-vectors

Algebra and Algebraic Geometry Seminar - Adam Van Tuyl - Vertex decomposable simplicial complexes: h-vectors and f-vectors Date Wednesday, 21 September 2022 1:30 pm - 2:30 pm

# Geometry and Model Theory Seminar - Siegfried van Hille - Parametrizations & Patrick Speissegger - Nested pfaffian functions

Geometry and Model Theory Seminar - Siegfried van Hille - Parametrizations & Patrick Speissegger - Nested pfaffian functions Date Tuesday, 20 September 2022 2:00 pm - 4:30 pm

# Algebra and Algebraic Geometry Seminar - Mathieu Guay-Paquet - Divided Difference Operators for Hessenberg Varieties

Algebra and Algebraic Geometry Seminar - Mathieu Guay-Paquet - Divided Difference Operators for Hessenberg Varieties Date Tuesday, 31 May 2022 12:30 pm - 1:30 pm

# Algebra and Algebraic Geometry Seminar - Elise Walker - Newton-Okounkov bodies of chemical reaction networks

Algebra and Algebraic Geometry Seminar - Elise Walker - Newton-Okounkov bodies of chemical reaction networks Date Wednesday, 11 May 2022 12:30 pm - 1:30 pm

# Algebra and Algebraic Geometry Seminar - Shiliang Gao - Minimal equations for matrix Schubert varieties

Algebra and Algebraic Geometry Seminar - Shiliang Gao - Minimal equations for matrix Schubert varieties Date Monday, 4 April 2022 12:30 pm - 1:30 pm

# McMaster-Waterloo Joint Algebra, Geometry, and Combinatorics Seminar - Elana Kalashnikov - Mirror symmetry constructions for Grassmannians and flag varieties

McMaster-Waterloo Joint Algebra, Geometry, and Combinatorics Seminar - Elana Kalashnikov - Mirror symmetry constructions for Grassmannians and flag varieties Date Friday, 25 March 2022 3:30 pm - 4:30 ...

# Algebra and Algebraic Geometry Seminar - Jeremy Lane - Integrable systems and action-angle coordinates from algebraic geometry and representation theory

Algebra and Algebraic Geometry Seminar - Jeremy Lane - Integrable systems and action-angle coordinates from algebraic geometry and representation theory Date Monday, 21 March 2022 12:30 pm - 1:30 pm

# Algebra and Algebraic Geometry Seminar - Khanh Nguyen Duc - A Murnaghan-Nakayama rule for Grothendieck polynomials of Grassmannian type

Algebra and Algebraic Geometry Seminar - Khanh Nguyen Duc - A Murnaghan-Nakayama rule for Grothendieck polynomials of Grassmannian type Date Monday, 14 March 2022 12:30 pm - 1:30 pm

# Algebra and Algebraic Geometry Seminar - Wanlin Li - Diophantine problem and rational points on curves

Algebra and Algebraic Geometry Seminar - Wanlin Li - Diophantine problem and rational points on curves Date Monday, 7 March 2022 12:30 pm - 1:30 pm

# Algebra and Algebraic Geometry Seminar - Nantel Bergeron- All about Quasi-symmetric functions

Algebra and Algebraic Geometry Seminar - Nantel Bergeron- All about Quasi-symmetric functions Date Monday, 28 February 2022 12:30 pm - 1:30 pm

# Algebra and Algebraic Geometry Seminar - Lauren Cranton Heller - Characterizing multigraded regularity on products of projective spaces

Algebra and Algebraic Geometry Seminar - Lauren Cranton Heller - Characterizing multigraded regularity on products of projective spaces Date Monday, 14 February 2022 12:30 pm - 1:30 pm

# Algebra and Algebraic Geometry Seminar - Benjamin Breen - Computing Hilbert modular forms using a trace formula.

Algebra and Algebraic Geometry Seminar - Benjamin Breen - Computing Hilbert modular forms using a trace formula. Date Monday, 7 February 2022 12:30 pm - 1:30 pm

# Algebra and Algebraic Geometry Seminar - Peter Crooks - Some Poisson-geometric features of Hessenberg varieties

Algebra and Algebraic Geometry Seminar - Peter Crooks - Some Poisson-geometric features of Hessenberg varieties Date Monday, 31 January 2022 12:30 pm - 1:30 pm

# Algebra and Algebraic Geometry Seminar - Robert Osburn - Generalized Fishburn numbers, torus knots and quantum modularity

Algebra and Algebraic Geometry Seminar - Robert Osburn - Generalized Fishburn numbers, torus knots and quantum modularity Date Monday, 29 November 2021 3:30 pm - 4:30 pm

# Algebra and Algebraic Geometry Seminar - Craig Kohne - The Waldschmidt constant for some monomial ideals

Algebra and Algebraic Geometry Seminar - Craig Kohne - The Waldschmidt constant for some monomial ideals Date Monday, 29 November 2021 12:30 pm - 1:30 pm

# Algebra and Algebraic Geometry Seminar - Oliver Pechenik - A web basis of invariant polynomials from noncrossing partitions

Algebra and Algebraic Geometry Seminar - Oliver Pechenik - A web basis of invariant polynomials from noncrossing partitions Date Monday, 22 November 2021 12:30 pm - 1:30 pm

# Algebra and Algebraic Geometry Seminar - Alun Stokes - An introduction to Belyi maps

Algebra and Algebraic Geometry Seminar - Alun Stokes - An introduction to Belyi maps Date Monday, 15 November 2021 12:30 pm - 1:00 pm

# Algebra and Algebraic Geometry Seminar - Graduate Student Talks

Algebra and Algebraic Geometry Seminar - Graduate Student Talks Date Monday, 8 November 2021 12:30 pm - 1:30 pm

# Algebra and Algebraic Geometry Seminar - Jaydeep Chipalkatti - The Pappus-Steiner map

Algebra and Algebraic Geometry Seminar - Jaydeep Chipalkatti - The Pappus-Steiner map Date Monday, 25 October 2021 12:30 pm - 1:30 pm

# Algebra and Algebraic Geometry Special Seminar - Allen Knutson - The commuting scheme and pipe dreams

Algebra and Algebraic Geometry Special Seminar - Allen Knutson - The commuting scheme and pipe dreams Date Thursday, 21 October 2021 3:30 pm - 4:30 pm

# Algebra and Algebraic Geometry Special Seminar - Allen Knutson -Schubert puzzles and quiver varieties

Algebra and Algebraic Geometry Special Seminar - Allen Knutson -Schubert puzzles and quiver varieties Date Thursday, 21 October 2021 2:00 pm - 3:00 pm

# Algebra and Algebraic Geometry Special Seminar - Allen Knutson - Schubert varieties and pipe dreams (expository talk geared to grad students)

Algebra and Algebraic Geometry Special Seminar - Allen Knutson - Schubert varieties and pipe dreams (expository talk geared to grad students) Date Wednesday, 20 October 2021 4:00 pm - 5:00 pm

# Algebra And Algebraic Geometry Seminar - Jay Yang - Virtually Cohen--Macaulay Monomial Ideals

Algebra And Algebraic Geometry Seminar - Jay Yang - Virtually Cohen--Macaulay Monomial Ideals Date Monday, 18 October 2021 12:30 pm - 1:30 pm

# Algebra And Algebraic Geometry Seminar - Angelica Babei - Solomon Zeta functions of table algebras

Algebra And Algebraic Geometry Seminar - Angelica Babei - Solomon Zeta functions of table algebras Date Monday, 4 October 2021 12:30 pm - 1:30 pm

# Algebra and Algebraic Geometry Seminar - Adam Van Tuyl - Componentwise linear ideals and the Herzog-Hibi-Ohsugi Conjecture

Algebra and Algebraic Geometry Seminar - Adam Van Tuyl - Componentwise linear ideals and the Herzog-Hibi-Ohsugi Conjecture Date Monday, 20 September 2021 12:30 pm - 1:30 pm

# Algebra and Algebraic Geometry Seminar - Jonathan Montaño - Mixed multiplicities of graded families of ideals and Mixed Volumes of Convex bodies

Algebra and Algebraic Geometry Seminar - Jonathan Montaño - Mixed multiplicities of graded families of ideals and Mixed Volumes of Convex bodies Date Monday, 19 July 2021 9:30 am - 10:30 am

# Algebra and Algebraic Geometry Seminar - Student Talks

Algebra and Algebraic Geometry Seminar - Student Talks Date Monday, 29 March 2021 10:00 am - 11:00 am

# Algebra and Algebraic Geometry Seminar - Bradd Hart - Maybe a little model theory would help?

Algebra and Algebraic Geometry Seminar - Bradd Hart - Maybe a little model theory would help? Date Monday, 15 March 2021 10:30 am - 11:30 am

# Algebra and Algebraic Geometry Seminar - Emmanuel Neye - Grobner bases for Kazhdan-Lusztig ideals

Algebra and Algebraic Geometry Seminar - Emmanuel Neye - Grobner bases for Kazhdan-Lusztig ideals Date Monday, 1 March 2021 10:30 am - 11:30 am

# Algebra and Algebraic Geometry Seminar - Claudia Miller - Torsion in exterior powers of differentials over complete intersection rings

Algebra and Algebraic Geometry Seminar - Claudia Miller - Torsion in exterior powers of differentials over complete intersection rings Date Monday, 22 February 2021 10:00 am - 11:00 am

# Model Theory Seminar - Christopher Hawthorne - Automata and tame expansions of $(\mathbb,+)$

Model Theory Seminar - Christopher Hawthorne - Automata and tame expansions of $(\mathbb,+)$ Date Friday, 13 November 2020 11:30 am - 12:30 pm

# Algebra and Algebraic Geometry Seminar - Sergio Da Silva - Understanding Schubert varieties using pattern avoidance

Algebra and Algebraic Geometry Seminar - Sergio Da Silva - Understanding Schubert varieties using pattern avoidance Date Monday, 26 October 2020 10:30 am - 11:30 am

# Algebra and Algebraic Geometry Seminar - Graham Keiper - Regularity and h-Polynomials of Toric Ideals of Graphs

Algebra and Algebraic Geometry Seminar - Graham Keiper - Regularity and h-Polynomials of Toric Ideals of Graphs Date Monday, 28 September 2020 10:30 am - 11:30 am

# Algebra and Algebraic Geometry Seminar - Jeremy Lane - Toric degenerations and symplectic geometry

Algebra and Algebraic Geometry Seminar - Jeremy Lane - Toric degenerations and symplectic geometry Date Monday, 14 September 2020 10:30 am - 11:30 am

# Algebra Seminar - CANCELLED - Eduardo Camps - Algebraic Coding Theory

Algebra Seminar - CANCELLED - Eduardo Camps - Algebraic Coding Theory Date Monday, 16 March 2020 11:30 am - 12:30 pm

# Algebra Seminar - Ayah Almousa - Polarizations of Powers of Graded Maximal Ideals

Algebra Seminar - Ayah Almousa - Polarizations of Powers of Graded Maximal Ideals Date Monday, 2 March 2020 11:30 am - 12:30 pm

# Geometry and Topology Seminar - Kalina Mincheva - Tropical Algebraic Geometry

Geometry and Topology Seminar - Kalina Mincheva - Tropical Algebraic Geometry Date Monday, 27 January 2020 10:30 am - 11:30 am

# Algebra Seminar - A.V. Jayanthan - Upper bounds for the regularity of powers of edge ideals of graphs

Algebra Seminar - A.V. Jayanthan - Upper bounds for the regularity of powers of edge ideals of graphs Date Monday, 20 January 2020 11:30 am - 12:30 pm

# Algebra Seminar - Hasan Mahmood & Miguel Pazcka - f-ideals and Quasi f-ideals & Commutative algebra and coding theory

Algebra Seminar - Hasan Mahmood & Miguel Pazcka - f-ideals and Quasi f-ideals & Commutative algebra and coding theory Date Tuesday, 10 December 2019 10:00 am - 12:00 pm

# Model theory seminar, Adam van Tuyl, McMaster

Model theory seminar, Adam van Tuyl, McMaster Date Friday, 29 November 2019 11:30 am - 12:30 pm

# Model theory seminar, James Rooney, McMaster

Model theory seminar, James Rooney, McMaster Date Friday, 22 November 2019 11:30 am - 12:30 pm

# Algebra Seminar - Graham Keiper - Decompositions of Toric Ideals of Finite Simple Graphs

Algebra Seminar - Graham Keiper - Decompositions of Toric Ideals of Finite Simple Graphs Date Tuesday, 22 October 2019 11:30 am - 12:30 pm

# Algebra Seminar - Jonathan O'Rourke - Local Cohomology and Degree Complexe

Algebra Seminar - Jonathan O'Rourke - Local Cohomology and Degree Complexes Date Tuesday, 8 October 2019 11:30 am - 12:30 p

# Special Symplectic Geometry Seminar - Jeremy Lane - Symplectic geometry of extended string cones

Special Symplectic Geometry Seminar - Jeremy Lane - Symplectic geometry of extended string cones Date Monday, 3 June 2019 2:00 pm - 3:00 pm

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