## Rocky Mountain Journal of Mathematics

### Tensor products of unbounded operator algebras

#### Abstract

The term $GW^*$-algebra means a generalized $W^*$-algebra and corresponds to an unbounded generalization of a standard von Neumann algebra. It was introduced by the second named author in 1978 for developing the Tomita-Takesaki theory in algebras of unbounded operators. In this note we consider tensor products of unbounded operator algebras resulting in a $GW^*$-algebra. Existence and uniqueness of the $GW^*$-tensor product is encountered, while properly $W^*$-infinite" $GW^*$-algebras are introduced and their structure is investigated.

#### Article information

Source
Rocky Mountain J. Math., Volume 44, Number 3 (2014), 895-912.

Dates
First available in Project Euclid: 28 September 2014

https://projecteuclid.org/euclid.rmjm/1411945670

Digital Object Identifier
doi:10.1216/RMJ-2014-44-3-895

Mathematical Reviews number (MathSciNet)
MR3264488

Zentralblatt MATH identifier
1321.46076

#### Citation

Fragoulopoulou, M.; Inoue, A.; Weigt, M. Tensor products of unbounded operator algebras. Rocky Mountain J. Math. 44 (2014), no. 3, 895--912. doi:10.1216/RMJ-2014-44-3-895. https://projecteuclid.org/euclid.rmjm/1411945670

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