2 citations
5 papers
A Proposal for High-Level Architectural Model Capable of Expressing Various Data Collaboration Platform and Data Space Concepts
Masaru Dobashi, Kohei Toshimitsu, Hirotsugu Seike +3
This paper proposes "Data Space High-Level Architecture Model" (DS-HLAM) for expressing diverse data collaboration platforms across regional implementations. The framework introduc…
Strongly irreducible operators and indecomposable representations of quivers on infinite-dimensional Hilbert spaces
Masatoshi Enomoto, Yasuo Watatani
We study several classes of indecomposable representations of quivers on infinite-dimensional Hilbert spaces and their relation. Many examples are constructed using strongly irredu…
Indecomposable representations of quivers on infinite-dimensional Hilbert spaces
Masatoshi Enomoto, Yasuo Watatani
We study indecomposable representations of quivers on separable infinite-dimensional Hilbert spaces by bounded operators. We consider a complement of Gabriel's theorem for these re…
Exotic indecomposable systems of four subspaces in a Hilbert space
Masatoshi Enomoto, Yasuo Watatani
We study the relative position of four subspaces in a Hilbert space. For any positive integer n, we give an example of exotic indecomposable system of four subspaces in a Hilbert s…
Relative position of four subspaces in a Hilbert space
Masatoshi Enomoto, Yasuo Watatani
The relative position of one subfactor of a factor has been proved quite rich since the work of Jones. We shall show that the theory of relative position of several subspaces of a…