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  1. COMA/NAG Joint Graduate Student Seminar: "Rees algebras of ideals of faces versus Lefschetz properties of nonface ideals"

    Location: SLMath: Online/Virtual, Baker Board Room
    Speakers: Thiago Holleben (Dalhousie University)

    Zoom Link

    The theory of Rees algebras of monomial ideals has been extensively studied, and as a consequence, many (sometimes partial) equivalences between algebraic properties of monomial ideals, and combinatorial properties of simplicial complexes and hypergraphs are known. In this talk, we will see how this theory can be used to find interesting examples in the theory of Lefschetz properties. We will also explore the consequences of known results from Lefschetz properties to the Rees algebras of squarefree monomial ideals. Applications include a connection between symbolic powers and f-vectors of simplicial complexes, and the positivity of mixed multiplicities of some families of squarefree monomial ideals. 
    All are welcome.
    Updated on Apr 26, 2024 10:30 AM PDT

  2. COMA Seminar

    Location: SLMath: Online/Virtual, Baker Board Room

    Zoom Link

    Updated on Mar 14, 2024 02:16 PM PDT

  5. NAG Colloquium

    Location: SLMath: Eisenbud Auditorium, Online/Virtual

    Zoom Link

    Updated on Mar 21, 2024 10:48 AM PDT

  11. COMA Colloquium

    Location: SLMath: Eisenbud Auditorium, Online/Virtual

    Zoom Link

    Updated on Jan 23, 2024 12:53 PM PST

  12. COMA Working Group: Syzygies

    Location: SLMath: Baker Board Room
    Updated on Feb 15, 2024 10:36 AM PST

  14. COMA Seminar

    Location: SLMath: Eisenbud Auditorium, Front Courtyard

    Zoom Link

    Updated on Jan 23, 2024 02:16 PM PST

  17. COMA Colloquium: "Vanishing Orders of Functions Along Singularities and Ideal Containment Problems in Noetherian Rings"

    Location: SLMath: Eisenbud Auditorium, Online/Virtual
    Speakers: Thomas Polstra (University of Alabama)

    Zoom Link

    In this talk, we delve into the intricate interplay between vanishing orders of functions along singularities and ideal containment problems in Noetherian rings. We start by focusing on the polynomial ring R = C[x1, . . . , xn] and explore the behavior of prime ideals and their symbolic powers. If P is a prime ideal then the nth symbolic power P(n) is the ideal of polynomial functions that vanish to order at least n at the generic point of V (P ). The Zariski-Nagata Theorem, established by Zariski in 1949, reflects the non- singular nature of n-space by asserting that if P ⊆ Q are prime ideals, then P (n) ⊆ Q(n) for all natural numbers n. However, when dealing with rings with singularities, it is no longer the case that P (n) ⊆ Q(n) for all prime ideal containments P ⊆ Q.

    Pioneered by Huneke, Katz, and Validashti, The Uniform Chevalley Theorem introduces a linear adjust- ment, requiring functions to vanish along the generic point of V (P ) to ensure a vanishing order of at least n along the generic point of V (Q). Specifically, it establishes the containment of ideals as P(Cn) ⊆ Q(n) for all P ⊆ Q and n ∈ N, where C depends on the singular prime Q.

    A notable limitation of the theorem is the dependency of the constant C on the singular prime Q, which restricts its applicability. This talk will explore methodologies to determine a constant C that remains inde- pendent of the prime Q, thereby enhancing the theorem’s utility. The investigation will also shed light on the role of the Izumi-Rees Theorem and unveil novel uniform properties exhibited by affine rings.

    Updated on Apr 30, 2024 08:11 AM PDT

  19. COMA Special Topic

    Location: SLMath: Online/Virtual, Baker Board Room
    Speakers: Shunsuke Takagi (University of Tokyo)

    Zoom Link

    Updated on Jan 23, 2024 03:10 PM PST

  23. NAG Colloquium

    Location: SLMath: Online/Virtual, Baker Board Room

    Zoom Link

    Updated on Mar 21, 2024 10:50 AM PDT

  27. COMA Colloquium

    Location: SLMath: Eisenbud Auditorium, Online/Virtual

    Zoom Link

    Updated on Jan 23, 2024 12:54 PM PST

  28. COMA Working Group: Syzygies

    Location: SLMath: Baker Board Room
    Updated on Feb 15, 2024 10:37 AM PST

  30. COMA Seminar

    Location: SLMath: Eisenbud Auditorium, Online/Virtual
    Speakers: Karl Schwede (University of Utah)

    Zoom Link

    Updated on Jan 23, 2024 02:16 PM PST

  34. COMA Seminar

    Location: SLMath: Eisenbud Auditorium, Online/Virtual

    Zoom Link

    Created on Mar 14, 2024 02:07 PM PDT

  35. COMA Special Topics

    Location: SLMath: Eisenbud Auditorium, Online/Virtual

    Zoom Link

    Updated on Mar 14, 2024 02:18 PM PDT

  36. COMA Special Topic

    Location: SLMath: Eisenbud Auditorium, Online/Virtual
    Speakers: Joseph Waldron (Michigan State University)

    Zoom Link

    Updated on Apr 17, 2024 03:14 PM PDT

  38. NAG Colloquium

    Location: SLMath: Eisenbud Auditorium, Online/Virtual

    Zoom Link

    Updated on Mar 21, 2024 10:50 AM PDT

  44. COMA Colloquium

    Location: SLMath: Eisenbud Auditorium, Online/Virtual

    Zoom Link

    Updated on Jan 23, 2024 01:08 PM PST

  45. COMA Working Group: Syzygies

    Location: SLMath: Baker Board Room
    Updated on Feb 15, 2024 10:39 AM PST

  47. COMA Seminar

    Location: SLMath: Eisenbud Auditorium, Front Courtyard

    Zoom Link

    Updated on Jan 23, 2024 02:16 PM PST

  51. COMA Seminar

    Location: SLMath: Eisenbud Auditorium, Online/Virtual

    Zoom Link

    Updated on Mar 14, 2024 02:18 PM PDT

  52. COMA Special Topics

    Location: SLMath: Eisenbud Auditorium, Online/Virtual

    Zoom Link

    Updated on Mar 14, 2024 02:19 PM PDT

  1. ADJOINT 2024

    ADJOINT is a yearlong program that provides opportunities for U.S. mathematicians – especially those from the African Diaspora – to conduct collaborative research on topics at the forefront of mathematical and statistical research. Participants will spend two weeks taking part in an intensive collaborative summer session at SLMath (formerly MSRI). The two-week summer session for ADJOINT 2024 will take place June 24 to July 5, 2024 in Berkeley, California. Researchers can participate in either of the following ways: (1) joining ADJOINT small groups under the guidance of some of the nation's foremost mathematicians and statisticians to expand their research portfolio into new areas, or (2) applying to Self-ADJOINT as part of an existing or newly-formed independent research group to work on a new or established research project. Throughout the following academic year, the program provides conference and travel support to increase opportunities for collaboration, maximize researcher visibility, and engender a sense of community among participants. 

    Updated on Apr 10, 2024 10:50 AM PDT

Past Seminars

  10. Seminar Hello Lean Seminar

    Updated on Apr 25, 2024 09:30 AM PDT
There are more then 30 past seminars. Please go to Past seminars to see all past seminars.