"Algonkian" vs. "pre-Cambrian"
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چکیده
منابع مشابه
Cambrian Lattices
For an arbitrary finite Coxeter group W , we define the family of Cambrian lattices for W as quotients of the weak order on W with respect to certain lattice congruences. We associate to each Cambrian lattice a complete fan, which we conjecture is the normal fan of a polytope combinatorially isomorphic to the generalized associahedron for W . In types A and B, we obtain, by means of a fiber-pol...
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ژورنال
عنوان ژورنال: Economic Geology
سال: 1913
ISSN: 1554-0774,0361-0128
DOI: 10.2113/gsecongeo.8.5.507