## Weekly Seminars

## FALL 2023

### Wednesday, November 29

Time |
Location |
Seminar |
Speaker |
Title |

3:00 | NKRS 356 | Algebra Seminar | Jeremiah Roberts | Exact and Abelian Categories with Applications to Banach Representations |

### Thursday, November 30

Time |
Location |
Seminar |
Speaker |
Title |

1:00 | ZOOM | Online Logic Seminar | Diana Carolina Montoya | Cardinal characteristics and singular cardinals |

1:00 | NKRS 356 | Apollonian Seminar | Jerzy Kocik |
1. Descartes' formula proved via spinors |

2:00 | NKRS 356 | Potpourri Seminar | Philip Feinsilver | Symmetric functions: traces, determinants, the full story, Part VII |

### Wednesday, November 22

Time |
Location |
Seminar |
Speaker |
Title |

3:00 | NKRS 356 | Algebra Seminar | Layla Sorkatti | On symplectic alternating algebras, Part III |

### Thursday, November 23 - Holiday - No Seminars

### Wednesday, November 15

Time |
Location |
Seminar |
Speaker |
Title |

3:00 | NKRS 356 | Algebra Seminar | Layla Sorkatti | On symplectic alternating algebras, Part II |

### Thursday, November 16

Time |
Location |
Seminar |
Speaker |
Title |

1:00 | ZOOM | Online Logic Seminar | Josiah Jacobsen-Grocott | Canceled |

1:00 | NKRS 356 | Apollonian Seminar | Jerzy Kocik | From spinor theorems to Descartes' disk formula |

2:00 | NKRS 356 | Potpourri Seminar | Philip Feinsilver | Arithmetic Progressions on Curves |

### Wednesday, November 8

Time |
Location |
Seminar |
Speaker |
Title |

3:00 | NKRS 356 | Algebra Seminar | Layla Sorkatti | On symplectic alternating algebras |

### Thursday, November 9

Time |
Location |
Seminar |
Speaker |
Title |

1:00 | ZOOM | Online Logic Seminar | Asaf Shanni | Generic analysis of Borel homomorphisms for the finite Friedman-Stanley jumps |

1:00 | NKRS 356 | Apollonian Seminar | Jerzy Kocik | Stern-Brocot tree and the magic quipu of Apollonian spinors |

2:00 | NKRS 356 | Potpourri Seminar | Philip Feinsilver | Symmetric functions: traces, determinants, the full story, Part IV |

### Wednesday, October 25

Time |
Location |
Seminar |
Speaker |
Title |

3:00 | NKRS 356 | Algebra Seminar | Devjani Basu | Blocks of SL_{n}(Fq) |

### Thursday, October 26

Time |
Location |
Seminar |
Speaker |
Title |

1:00 | ZOOM | Online Logic Seminar | Salma Kuhlmann | The Automorphism group of a Hahn field |

1:00 | NKRS 356 | Apollonian Seminar | Jerzy Kocik | Disks and Spinors: Seven Wondrous Features |

2:00 | NKRS 356 | Potpourri Seminar | Philip Feinsilver | Symmetric functions: traces, determinants, the full story, Part III |

### Wednesday, October 18

Time |
Location |
Seminar |
Speaker |
Title |

3:00 | NKRS 356 | Algebra Seminar | Gabriel Ngwe | Banach Spaces over Nonarchimedean Fields, Part II |

### Thursday, October 19

Time |
Location |
Seminar |
Speaker |
Title |

1:00 | ZOOM | Online Logic Seminar | Dino Rossegger | Learning Equivalence Relations |

1:00 | NKRS 356 | Apollonian Seminar | Jerzy Kocik | Spinors at last |

2:00 | NKRS 356 | Potpourri Seminar | Philip Feinsilver | Symmetric functions: traces, determinants, the full story, Part II |

### Wednesday, October 11

Time |
Location |
Seminar |
Speaker |
Title |

3:00 | NKRS 356 | Algebra Seminar | No Seminar |

### Thursday, October 12

Time |
Location |
Seminar |
Speaker |
Title |

1:00 | ZOOM | Online Logic Seminar | Noah Schweber | Logic(s) in the computable context |

1:00 | NKRS 356 | Apollonian Seminar | Jerzy Kocik | A selection of Apollonian gems |

2:00 | NKRS 356 | Potpourri Seminar | Philip Feinsilver | Symmetric functions: traces, determinants, the full story |

### Wednesday, October 4

Time |
Location |
Seminar |
Speaker |
Title |

3:00 | NKRS 356 | Algebra Seminar | Gabriel Ngwe | Banach Spaces over Nonarchimedean Fields |

### Thursday, October 5

Time |
Location |
Seminar |
Speaker |
Title |

1:00 | ZOOM | Online Logic Seminar | Kameryn Williams | Interpretations and bi-interpretations in second-order arithmetic |

1:00 | NKRS 356 | Apollonian Seminar | Jerzy Kocik | Time crystal. General disk theorem. |

2:00 | NKRS 356 | Potpourri Seminar | Duston Wetzel | Gyroid and helix linkages updated |

### Wednesday, September 27

Time |
Location |
Seminar |
Speaker |
Title |

3:00 | NKRS 356 | Algebra Seminar | Dubravka Ban | Admissible Banach space representations, Part II |

### Thursday, September 28

Time |
Location |
Seminar |
Speaker |
Title |

1:00 | ZOOM | Online Logic Seminar | Teresa Kouri Kissel | Proof-Theoretic Pluralism and Harmony |

1:00 | NKRS 356 | Apollonian Seminar | Jerzy Kocik | Inversions and symmetries of apollohedron |

2:00 | NKRS 356 | Potpourri Seminar | K.V. Shajesh | Negative mass: A runaway solution |

### Wednesday, September 20

Time |
Location |
Seminar |
Speaker |
Title |

3:00 | NKRS 356 | Algebra Seminar | No Seminar |

### Thursday, September 21

Time |
Location |
Seminar |
Speaker |
Title |

1:00 | ZOOM | Online Logic Seminar | Dario Garcia | Pseudofiniteness and measurability of the everywhere infinite forest. |

1:00 | NKRS 356 | Apollonian Seminar | Jerzy Kocik | Apolohedron, Apolonian packin goes to space-time |

2:00 | NKRS 356 | Potpourri Seminar | Michael Sullivan | Geometric Lorenz Attractor |

### Wednesday, September 6

Time |
Location |
Seminar |
Speaker |
Title |

3:00 | NKRS 356 | Algebra Seminar | Dubravka Ban | Admissible Banach space representations |

### Thursday, September 7

Time |
Location |
Seminar |
Speaker |
Title |

1:00 | ZOOM | Online Logic Seminar | Timothy Trujillo | Nonstandard Methods in Topoligical Ramsey Theory: Revisiting the Nash-Williams Theorem |

1:00 | NKRS 356 | Apollonian Seminar | Jurek (Jerzy) Kocik | Apollonian Disk Packings |