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bigrassmannian. In DICTIOUS you will not only get to know all the dictionary meanings for the word
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English
Etymology
From bi- + Grassmannian.
Adjective
bigrassmannian (not comparable)
- (mathematics) Pertaining to a permutation such that there is at most one left and one right descent (at most one index i and one index j, such that wsi < w and sjw < w).
2015, Alexander B. Goncharov, “Exponential complexes, period morphisms, and characteristic classes”, in arXiv:Combining this with the construction of Chern classes with coefficients in the bigrassmannian complexes, we get, for the weights up to four, local explicit formulas for the Chern classes in the rational Deligne cohomology via polylogarithms.