Algebroid Curves in Positive Characteristic

  • PDF / 5,031,732 Bytes
  • 174 Pages / 461 x 684 pts Page_size
  • 65 Downloads / 212 Views

DOWNLOAD

REPORT


813 Antonio Campiilo

Algebroid Curves in Positive Characteristic

Springer-Verlag Berlin Heidelberg New York 1980

Author Antonio Campillo Departamento de Algebra y Fundamentos, Facultad de Ciencias, Universidad de Valladolid Valladolid/Spain

AMS Subject Classifications (1980): 14 B05, 14 H 20 ISBN 3-540-10022-9 Springer-Verlag Berlin Heidelberg NewYork ISBN 0-387-10022-9 Springer-Verlag NewYork Heidelberg Berlin This work is subject to copyright. All rights are reserved, whether the whole or part of the material is concerned, specifically those of translation, reprinting, re-use of illustrations, broadcasting, reproduction by photocopying machine or similar means, and storage in data banks. Under § 54 of the German Copyright Law where copies are made for other than private use, a fee is payable to the publisher, the amount of the fee to be determined by agreement with the publisher. © by SpringeroVerlag Berlin Heidelberg 1980 Printed in Germany Printing and binding: Beltz Offsetdruck, Hemsbach/Bergstr. 2141/3140-543210

INTRODUCTION

A since

number

Zariski

(the of

are

over

equivalent

that

more

recently

of

the

in

any

field

which

attempt

is

the

being

r a

chain

an of

algebroid

arbitrary

of

an

case and

( 18 ) , a n d

curves

characteristic, instead in

Salamanticiensis any

irreducible

longer.

first

as

main

appeared

algebraic in

curves

a work

(Universidad Essentially

algebroid

an

zero.

expansion

completely

over

the

Puiseux

characteristic

plane

of

using

o.f t h e

developed

was

available

the

development

It

it

curve

[]

by

G.

de is

based

on

= k({x,y~]

type

=

x(z

y = y(z

z

a systematic

of

x

by

give

parametrizations

not

zero

3 ) .

employed

Acta

algebroid

attention

Moh

obtain

and

of

( 15)9

to

in

plane

extensive

Hamburger-Noether

a parametrization k

received

,

Those

However

called

published

appeared

characteristic

so

characteristic.

Salamanca)

of

of

initially).

expansion

usually

case

field

irreducible

of

have

Equisingularity"

Lejeune

to

Hamburger-Noether

Ancochea,

over

not

[

of

closed

in

particular

available"

equisingularity

The an

has

intend

expansion

as

are

equisingularity

considered

notes

algebraically tool

the

closed

AngermBIler

These theory

in

p > 0

papers

of

"Studies

Zariski

characteristic a few

his

a-n a l g e b r a i c a l l y

situation

only

definitions

published

definitions curves

of

element relations

of

r r

the

)

)

,

quotient

field

of

[]

,

obtained

from

x~y

IV

y

=

a0t

x +

2

aO2x

+

. . .

+

2 x

=

Zr_1 where

a.. jl

C

a plane

Puiseux

expansion

and

are

determined

the

curve,

by

the

singularities

the

of

I

well

contains

an

over

introduce

an

the

between given

the by

the

of

that

for

derived

the

local

from

ring,

etc...

and

results

of

on

resolution

Chapter

comparison

I I

of

is

of it w i t h

devoted

the

zero. a complex

ones, and

of t h e maximal iV. and

of

From compute

Newton

exponents