Geodesic
Positive projections as generators of $J$-projections of type~(B)
Lobachevskii journal of mathematics, Tome 26 (2007), pp. 91-105

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Let $\mathcal A$ be a von Neumann $J$-algebra of type (B) acting in an indefinite metric space. The aim of the paper is to study $J$-projections from $\mathcal A$.
Keywords: quantum logic, Hilbert space, indefinite metric space, projection. 
@article{LJM_2007_26_a9,
     author = {M. S. Matveichuk and A. M. Ionova},
     title = {Positive projections as generators of $J$-projections of {type~(B)}},
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     publisher = {mathdoc},
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     year = {2007},
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     url = {http://geodesic.mathdoc.fr/item/LJM_2007_26_a9/}
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M. S. Matveichuk; A. M. Ionova. Positive projections as generators of $J$-projections of type~(B). Lobachevskii journal of mathematics, Tome 26 (2007), pp. 91-105. http://geodesic.mathdoc.fr/item/LJM_2007_26_a9/