Classification and GNS-construction for general universal products
Classification and GNS-construction for general universal products
复制标题
通用通用产品的分类和GNS结构
DOI:
10.1142/s0219025715500046
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发表时间:
2015
期刊:
影响因子:
--
通讯作者:
S. Lachs
中科院分区:
文献类型:
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作者:
Malte Gerhold;S. Lachs
It is known that there are exactly five natural products, which are universal products fulfilling two normalization conditions simultaneously. We classify universal products without these extra conditions. We find a two-parameter deformation of the Boolean product, which we call (r, s)-products. Our main result states that, besides degnerate cases, these are the only new universal products. Furthermore, we introduce a GNS-construction for not necessarily positive linear functionals on algebras and study the GNS-construction for (r, s)-product functionals.
DOI:
10.1090/s0002-9939-2014-12111-3
发表时间:
2014
期刊:
影响因子:
--
作者:
O. Arizmendi;T. Hasebe
通讯作者:
T. Hasebe