Abstract
We give the first complete classification of free and non-free multiplicities on an arrangement, called the deleted $A_{3}$ arrangement, which admits both of them.
Citation
Takuro Abe. "Free and non-free multiplicity on the deleted $A_{3}$ arrangement." Proc. Japan Acad. Ser. A Math. Sci. 83 (7) 99 - 103, July 2007. https://doi.org/10.3792/pjaa.83.99
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