Decomposition of pointwise finite-dimensional ?1 persistence modules
Decomposition of pointwise finite-dimensional ?1 persistence modules
复制标题
逐点有限维 ?1 持久性模块的分解
DOI:
10.1142/s0219498824500543
复制
发表时间:
2020
影响因子:
0.8
通讯作者:
J. Rock
中科院分区:
文献类型:
--
作者:
Eric J. Hanson;J. Rock
We prove that, over an arbitrary field, pointwise finite-dimensional persistence modules indexed by [Formula: see text] decompose uniquely, up to isomorphism, into the direct sum of a bar code and finitely-many Jordan cells. In the language of representation theory, this is a direct sum of string modules and band modules. Persistence modules indexed on [Formula: see text] have also been called angle-valued or circular persistence modules. We allow either a cyclic order or partial order on [Formula: see text] and do not have additional finiteness requirements on the modules. We also show that a pointwise finite-dimensional [Formula: see text] persistence module is indecomposable if and only if it is a bar or Jordan cell. Along the way we classify the isomorphism classes of such indecomposable modules.
影响因子:
1
作者:
Francesco Sala;O. Schiffmann
通讯作者:
Francesco Sala;O. Schiffmann