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Ω-ADMISSIBLE THEORY

Published online by Cambridge University Press:  01 November 1999

LIN WENG
LIN WENG
Affiliation:
Department of Mathematics, Graduate School of Science, Osaka University Present address: Department of Mathematics, Faculty of Science, Kobe University, Rokko, Kobe 657-8501, Japan, email:weng@math.kobe-u.ac.jp
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Abstract

Arakelov and Faltings developed an admissible theory on {\it regular} arithmetic surfaces by using Arakelov canonical volume forms on the associated Riemann surfaces. Such volume forms are induced from the associated Kähler forms of the flat metric on the corresponding Jacobians. So this admissible theory is in the nature of Euclidean geometry, and hence is not quite compatible with the moduli theory of Riemann surfaces. In this paper, we develop a general admissible theory for arithmetic surfaces (associated with stable curves) with respect to any volume form. In particular, we have a theory of arithmetic surfaces in the nature of hyperbolic geometry by using hyperbolic volume forms on the associated Riemann surfaces. Our theory is proved to be useful as well: we have a very natural Weil function on the moduli space of Riemann surfaces, and show that in order to solve the arithmetic Bogomolov-Miyaoka-Yau inequality, it is sufficient to give an estimation for Petersson norms of some modular forms.

1991 Mathematics Subject Classification: 11G30, 11G99, 14H15, 53C07, 58A99.

Keywords

admissible metriccohomology determinantDeligne pairingRiemann-Roch theorem
Type
Research Article
Information
Proceedings of the London Mathematical Society , Volume 79 , Issue 3 , November 1999 , pp. 481 - 510
Copyright
1999 London Mathematical Society

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