中心的単純環
1. Central simple algebraIn ring theory and related areas of mathematics a central simple algebra (CSA) over a field K is a finite-dimensional associative algebra A, which is simple, and for which the center is exactly K. In other words, any simple algebra is a central simple algebra over its center. For example, the complex numbers C form a CSA over themselves, but not over the real numbers R (the center of C is all of C, not just R).
Read “Central simple algebra” on English Wikipedia
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Read “Central simple algebra” on English Wikipedia
Read “中心的単純環” on Japanese Wikipedia
Read “Central simple algebra” on DBpedia
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