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Hypoelliptic Laplacian and Bott–Chern Cohomology

PM: HYPOELLIPTIC LAPLACIAN AND BOTT CHERN COHOMOLOGY

Mathematics

Mathematics & Science

Gt Product Group

Binding Format

Marketing Imprint Name

B2B GT

CL Carton Count

Imprint Name

B2B & B2C

The book provides the proof of a complex geometric version of a well-known result in algebraic geometry: the theorem of Riemann–Roch–Grothendieck for proper submersions. It gives an equality of cohomology classes in Bott–Chern cohomology, which is a refinement for complex manifolds of de Rham cohomology. When the manifolds are Kähler, our main result is known. A proof can be given using the elliptic Hodge theory of the fibres, its deformation via Quillen's superconnections, and a version in families of the 'fantastic cancellations' of McKean–Singer in local index theory. In the general case, this approach breaks down because the cancellations do not occur any more. One tool used in the book is a deformation of the Hodge theory of the fibres to a hypoelliptic Hodge theory, in such a way that the relevant cohomological information is preserved, and 'fantastic cancellations' do occur for the deformation. The deformed hypoelliptic Laplacian acts on the total space of the relative  tangent bundle of the fibres. While the original hypoelliptic Laplacian discovered by the author can be described in terms of the harmonic oscillator along the tangent bundle and of the geodesic flow, here, the harmonic oscillator has to be replaced by a quartic oscillator.   Another idea developed in the book is that while classical elliptic Hodge theory is based on the Hermitian product on forms, the hypoelliptic theory involves a Hermitian pairing which is a mild modification of intersection pairing. Probabilistic considerations play an important role, either as a motivation of some constructions, or in the proofs themselves.

POST SECONDARY FOUR YEAR

COLFR

COLSO

COLJR

COLSR

Duration

Duration Unit Of Measure

Transaction Type

Front Cover.
Editorial Board.
Title Page.
Copyright Page.
Dedication.
Preface.
Contents.
Introduction.
1: The Riemannian Adiabatic Limit.
2: The holomorphic Adiabatic Limit.
3: The Elliptic Superconnections.
4: The Elliptic Superconnection Forms.
5: The Elliptic Superconnections Forms When &#x2202;M &#x2202;M &#x03C9;M = 0.
6: The Hypoelliptic Superconnections.
7: The Hypoelliptic Superconnection Forms.
8: The Hypoelliptic Superconnection Forms of Vector Bundles.
9: The Hypoelliptic Superconnection Forms When &#x2202;M &#x2202;M &#x03C9;M = 0.
10: The Exotic Superconnection Forms of a Vector Bundle.
11: Exotic Superconnections and Riemann-Roch-Grothendieck.
Bibliography.
Subject Index.
Index of Notation.

Hypoelliptic Laplacian and Bott–Chern Cohomology.css-1p8rvzy{position:absolute;padding-left:8px;}

Hypoelliptic Laplacian and Bott–Chern Cohomology