Some remarks on free arrangements
نویسندگان
چکیده
We exhibit a particular free subarrangement of certain restriction the Weyl arrangement type $E_7$ and use it to give an affirmative answer recent conjecture by T. Abe on nature additionally stair-free arrangements.
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ژورنال
عنوان ژورنال: Tohoku Mathematical Journal
سال: 2021
ISSN: ['2186-585X', '0040-8735', '1881-2015']
DOI: https://doi.org/10.2748/tmj.20200318