We generalise Yoshino's definition of a degeneration of two Cohen Macaulay modules to a definition of degeneration between two objects in a triangulated category. We derive some natural properties for the triangulated category and the degeneration under which the Yoshino-style degeneration is equivalent to the degeneration defined by a specific distinguished triangle analogous to Zwara's characterisation of degeneration in module varieties.
机构:
St Petersburg State Univ, Dept Math & Mech, Univ Skii Pr 28, St Petersburg 198504, RussiaSt Petersburg State Univ, Dept Math & Mech, Univ Skii Pr 28, St Petersburg 198504, Russia
Bondarko, M. V.
Sosnilo, V. A.
论文数: 0引用数: 0
h-index: 0
机构:
St Petersburg State Univ, Dept Math & Mech, Univ Skii Pr 28, St Petersburg 198504, RussiaSt Petersburg State Univ, Dept Math & Mech, Univ Skii Pr 28, St Petersburg 198504, Russia
机构:
Univ Leeds, Dept Pure Math, Leeds LS2 9JT, W Yorkshire, EnglandUniv Leeds, Dept Pure Math, Leeds LS2 9JT, W Yorkshire, England
Jensen, Bernt Tore
Su, Xiuping
论文数: 0引用数: 0
h-index: 0
机构:
Univ Picardie, Fac Math, F-80039 Amiens, France
CNRS, UMR 6140, F-80039 Amiens, FranceUniv Leeds, Dept Pure Math, Leeds LS2 9JT, W Yorkshire, England
Su, Xiuping
Zimmermann, Alexander
论文数: 0引用数: 0
h-index: 0
机构:
Univ Picardie, Fac Math, F-80039 Amiens, France
CNRS, UMR 6140, F-80039 Amiens, FranceUniv Leeds, Dept Pure Math, Leeds LS2 9JT, W Yorkshire, England