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On quadratic fields generated by polynomials

✍ Scribed by Florian Luca; Igor E. Shparlinski


Publisher
Springer
Year
2008
Tongue
English
Weight
156 KB
Volume
91
Category
Article
ISSN
0003-889X

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Toric Ideals Generated by Quadratic Bino
✍ Hidefumi Ohsugi; Takayuki Hibi πŸ“‚ Article πŸ“… 1999 πŸ› Elsevier Science 🌐 English βš– 157 KB

A combinatorial criterion for the toric ideal arising from a finite graph to be generated by quadratic binomials is studied. Such a criterion guarantees that every Koszul algebra generated by squarefree quadratic monomials is normal. We present an example of a normal non-Koszul squarefree semigroup