eBook ISBN:  9781470404420 
Product Code:  MEMO/178/841.E 
List Price:  $61.00 
MAA Member Price:  $54.90 
AMS Member Price:  $36.60 
eBook ISBN:  9781470404420 
Product Code:  MEMO/178/841.E 
List Price:  $61.00 
MAA Member Price:  $54.90 
AMS Member Price:  $36.60 

Book DetailsMemoirs of the American Mathematical SocietyVolume: 178; 2005; 85 ppMSC: Primary 14; 32
The main objective of this paper is to prove the monodromy conjecture for the local Igusa zeta function of a quasiordinary polynomial of arbitrary dimension defined over a number field. In order to do it, we compute the local DenefLoeser motivic zeta function \(Z_{\text{DL}}(h,T)\) of a quasiordinary power series \(h\) of arbitrary dimension over an algebraically closed field of characteristic zero from its characteristic exponents without using embedded resolution of singularities. This allows us to effectively represent \(Z_{\text{DL}}(h,T)=P(T)/Q(T)\) such that almost all the candidate poles given by \(Q(T)\) are poles. Anyway, these candidate poles give eigenvalues of the monodromy action on the complex \(R\psi_h\) of nearby cycles on \(h^{1}(0).\) In particular we prove in this case the monodromy conjecture made by DenefLoeser for the local motivic zeta function and the local topological zeta function. As a consequence, if \(h\) is a quasiordinary polynomial defined over a number field we prove the Igusa monodromy conjecture for its local Igusa zeta function.
ReadershipGraduate students and research mathematicians interested in analysis and number theory.

Table of Contents

Chapters

Introduction

1. Motivic integration

2. Generating functions and Newton polyhedra

3. Quasiordinary power series

4. DenefLoeser motivic zeta function under the Newton maps

5. Consequences of the main theorems

6. Monodromy conjecture for quasiordinary power series


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The main objective of this paper is to prove the monodromy conjecture for the local Igusa zeta function of a quasiordinary polynomial of arbitrary dimension defined over a number field. In order to do it, we compute the local DenefLoeser motivic zeta function \(Z_{\text{DL}}(h,T)\) of a quasiordinary power series \(h\) of arbitrary dimension over an algebraically closed field of characteristic zero from its characteristic exponents without using embedded resolution of singularities. This allows us to effectively represent \(Z_{\text{DL}}(h,T)=P(T)/Q(T)\) such that almost all the candidate poles given by \(Q(T)\) are poles. Anyway, these candidate poles give eigenvalues of the monodromy action on the complex \(R\psi_h\) of nearby cycles on \(h^{1}(0).\) In particular we prove in this case the monodromy conjecture made by DenefLoeser for the local motivic zeta function and the local topological zeta function. As a consequence, if \(h\) is a quasiordinary polynomial defined over a number field we prove the Igusa monodromy conjecture for its local Igusa zeta function.
Graduate students and research mathematicians interested in analysis and number theory.

Chapters

Introduction

1. Motivic integration

2. Generating functions and Newton polyhedra

3. Quasiordinary power series

4. DenefLoeser motivic zeta function under the Newton maps

5. Consequences of the main theorems

6. Monodromy conjecture for quasiordinary power series