Complex Manifold Deformation Theory
3 Uniqueness of Word
TANAKA Akio
Conjecture
Word has uniqueness.
[Explanation]
1
Smooth manifold M
Hermitian metric of M h
Tangent bundle of TM
positive definite Hermitian inner product
over TM
h
[Explanation]
1
Smooth manifold M
Hermitian metric of M h
Tangent bundle of TM

Local
coordinate system z1,
..., zn
Hermitian
symmetric positive definite 
function's matrix hij


h
=
hijzi
j
Correspondence differential form w



Correspondence differential form w
w = 
hijdzi
d
j




When dw = 0, h is called K
ller metric and w is called K
llerform.


Complex
manifold that has K
ller metric K
ller manifold


2
n-dimensional compact K
ller manifold X

K
ller metric of X g

Correspondence
K
ller form w

Local
coordinate system z1,
..., zn
Ricci
curvature of X
R
= -


log det (g
)







Ricci
form Ric(w) =
R
dz
d







A
certain constant
c
When
Ric(w) = cw, g is called K
ller-Einstein metric.

When c = 0, c1(X) = 0
When c = -1, Linear bundle
nTX
's cobundle is ample. The situation is briefly abbreviate expressed by c1(X) <0.

3
Compact
K
ller manifold X

X
satisfies c1(X) = 0 or c1(X) <0.
When K
ller form's cohomology class is fixed, K
ller-Einstein metric exists uniquely.
When K


[Comment]
When
word is expressed by compact K
ller manifold in adequate condition, word has
uniqueness.

[References]
Especially
the next is important.
To be continued
Tokyo December 11, 2008
Back to SekinanLogosHome
Tokyo December 11, 2008
Back to SekinanLogosHome
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