Page - 154 - in Differential Geometrical Theory of Statistics
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Entropy2016,18, 433
Structure.Themapsdj andSj satisfy the following identities
didj=dj−1di if i≤ j, (5a)
SiSj=Sj+1Si if i< j, (5b)
(Sj−1di−diSj)(ξ)= ej−1(xi)∂iξ if 1< i< j, (5c)
(di+1Sj−Sjdi)(ξ)= ej(xi)∂iξ if j+1< i≤ q, (5d)
di(Si(ξ))= ξ if i= j. (5e)
Definition13. Thesystem { Tq(B),di,Si }
is called the canonical semi simplicialmoduleofB.
3.2.4. TheKVChainComplex
Fromthecanonical simplicialB-modulewederive thechaincomplexC∗(B). ithasaZ-grading
which isdefinedby
Cq(B)=0 if q<0, (6a)
C0(B)=R, (6b)
Cq(B)=Tq(B˜) if q>0. (6c)
Nowonedefines the ( linear)boundaryoperator
d :Cq(B)→Cq−1(B)
bysetting
d(C0(B))=0,
d(C1(B))=0,
dξ= q
∑
1 (−1)jdjξ if q>1.
Bythevirtueof (5a)wehave
d2=0.
3.2.5. TheV-ValuedKVHomology
Wekeepthenotationusedin theprecedingsub-subsection. So thevectorspacesA,BandVare
thesameas in theprecedingsubsubsection.
Weconsider theZ-gradedvectorspace
C∗(B,V)=⊕qCq(B,V).
Itshomogeneoussub-spacesaredefinedby
Cq(B,V)=0 if q<0,
C0(B,V)=V,
Cq(B,V)=Tq(B˜)⊗V if q>0.
EveryhomogeneousvectorsubspaceCq(B,V) isa leftmoduleof theKValgebraB. The leftaction
isdefinedby
s ·(ξ⊗v)= s ·ξ⊗v+ξ⊗s ·v.
154
Differential Geometrical Theory of Statistics
- Title
- Differential Geometrical Theory of Statistics
- Authors
- Frédéric Barbaresco
- Frank Nielsen
- Editor
- MDPI
- Location
- Basel
- Date
- 2017
- Language
- English
- License
- CC BY-NC-ND 4.0
- ISBN
- 978-3-03842-425-3
- Size
- 17.0 x 24.4 cm
- Pages
- 476
- Keywords
- Entropy, Coding Theory, Maximum entropy, Information geometry, Computational Information Geometry, Hessian Geometry, Divergence Geometry, Information topology, Cohomology, Shape Space, Statistical physics, Thermodynamics
- Categories
- Naturwissenschaften Physik