量子化学研究協会・研究所誌 「量子の世界」 | 特定非営利活動法人 量子化学研究協会研究所

Definition An embeddable tiled surface is a tiled surface which is actually achieved as the graph of singular leaves of some embedded orientable surface with closed braid

We study the classical invariant theory of the B´ ezoutiant R(A, B) of a pair of binary forms A, B.. We also describe a ‘generic reduc- tion formula’ which recovers B from R(A, B)

Every pseudo-functor on G defines and is defined by a Grothendieck fibration F −→ G and here the fibrations defined by factor sets are precisely the extensions of G, with those

Giuseppe Rosolini, Universit` a di Genova: rosolini@disi.unige.it Alex Simpson, University of Edinburgh: Alex.Simpson@ed.ac.uk James Stasheff, University of North

Keywords: alternative set theory, biequivalence, vector space, monad, galaxy, symmetric Sd-closure, dual, valuation, norm, convex, basis.. Classification: Primary 46Q05, 46A06,

In the existing works on the combination of rough sets and matroids, Zhu and Wang 32 constructed a matroid by defining the concepts of upper approximation number in rough sets..

One then imitates the scheme laid out in the previous paragraph, defining the operad for weak n-categories with strict units as the initial object of the category of algebras of

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