The 53rd Symposium on Ring Theory and Representation Theory

Program (Lectures given by online)


September 6 (Monday)

  • 10:00--10:30
    Yuya Otake, Kaito Kimura, Ryo Takahashi
    Vanishing of Ext modules over Cohen-Macaulay rings


  • 10:40--11:10
    Tsutomu Nakamura
    Large tilting objects induced by codimension functions and homomorphic images of Cohen-Macaulay rings


  • 11:20--11:50
    Yasuaki Gyoda
    Positive cluster complexes and τ-tilting simplicial complexes


  • Lunch Break


  • 13:30--14:00
    Takahiro Honma, Takuma Aihara
    τ-tilting finite triangular matrix algebras


  • 14:10--14:40
    Yoshiharu Shibata, Isao Kikumasa, Yosuke Kuratomi
    On almost N-projective modules and generalized N-projective modules


  • 15:00--15:30
    Satoshi Usui
    Tate-Hochschild cohomology and eventual periodicity for Gorenstein algebras


  • 15:40--16:10
    Yuichiro Goto
    Generalizations of the correspondence between quasi-hereditary algebras and directed bocses
    Slide


September 7 (Tuesday)

  • 10:00--10:30
    Sota Asai, Osamu Iyama
    Numerical torsion pairs and canonical decompositions for elements in the Grothendieck group
    Slide


  • 10:40--11:10
    Yuta Kimura
    Subcategories and silting objects of Noetherian algebras


  • 11:20--11:50
    Ryo Kanda, Tsutomu Nakamura
    Structure theorem for flat cotorsion modules over Noether algebras
    Slide


  • Lunch Break


  • 13:30--14:00
    Miyamoto Kengo, Wang Qi
    On τ-tilting finiteness of tensor product algebras between simply connected algebras


  • 14:10--14:40
    Haigang Hu
    Algebras associated to noncommutative conics in quantum projective planes


  • 14:50--15:20
    Ayako Itaba, Izuru Mori
    Characterization of the quantum projective planes finite over their centers
    Slide


September 8 (Wednesday)

  • 10:00--10:30
    Arashi Sakai
    Localization of extriangulated categories
    Slide


  • 10:40--11:10
    Haruhisa Enomoto
    Some classes of subcategories of module categories: classifications and the relation between them
    Slide


  • 11:20--11:50
    Mayu Tsukamoto, Takahide Adachi, Haruhisa Enomoto
    Intervals of s-torsion pairs in extriangulated categories with negative first extensions


  • Lunch Break


  • 13:30--14:00
    Takahide Adachi, Ryoichi Kase
    Examples of tilting-discrete self-injective algebras


  • 14:10--14:40
    Norihiro Hanihara
    The structure of Adams graded dg algebras and Cohen-Macaulay representations


  • 14:50--15:20
    Shunya Saito
    Tilting theory for periodic triangulated categories