منابع مشابه
Seidel-smith Cohomology for Tangles
We generalize the“symplectic Khovanov cohomology” of Seidel and Smith [15] to tangles using the notion of topological symplectic field theory introduced by Wehrheim and Woodward [17].
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WExpand@expr_D := Expand@expr . w_W ¦ Signature@wD * Sort@wDD; WM@___, 0, ___D = 0; a_ ~WM~ b_ := WExpandADistribute@a ** bD . Ic1_. * w1_WM ** Ic2_. * w2_WM ¦ c1 c2 Join@w1, w2D E; WM@a_, b_, c__D := a ~WM~ WM@b, cD; IM@8<, expr_D := expr; IM@i_, w_WD := If@MemberQ@w, iD, -H-1L^Position@w, iD@@1, 1DD DeleteCases@w, iD, 0D; IM@8is___, i_<, w_WD := IM@8is<, IM@i, wDD; IM@is_List, expr_D := exp...
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Not all naturally occurring iterated systems have the property that time is reversible. In which case, the dynamics must be modelled by a noninvertible map rather than by a di eomorphism. While one-dimensional theory describes dynamics of noninvertible maps, higher-dimensional theory has focussed on di eomorphisms, though there are many higher-dimensional examples of natural systems modelled by...
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ژورنال
عنوان ژورنال: Selecta Mathematica
سال: 2009
ISSN: 1022-1824,1420-9020
DOI: 10.1007/s00029-009-0002-6