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ExeEeta.t88t8ot8otEtOXACxkdetCA-XIH.X4PuisqueMAdiviseXAsonaMnkl-XouX2arX3ouX4AtOdoncphtAtxMaisA2-Odonc1uAKkX220rglAl-3dmcdimkerA-2.DmcJAadmet2blocsdeJordan.0nsaitaussique1untxl-MdmcLataillemaxldesb1ocsdeJordandeAest2.0nendeduitoteja.foofEoftEd0naK8dlcKerAekerA2R4kerA-HkhEgt1AQI-l8dtgntn3tetEE.EHntEtnedkerA.retfEttED0nprendunss-ev.supplementairedeKerA.pexEvectsfEhfEBiRHFtokerA-V1-VzDmlunebasdeJordanestlAv.v.AVziHcia.dAl8d.ftodiAdif8D3OB.f0YEo8q8qjAetBsontsemb1ab6sssilapermutaticndesb1ocspreDe11esontlarnformedeJordan.Ba3blocs.maisA2b1ocsExerci@A2A2tA-I.DoncPW-X2X2-Xt1estunpdynomeannu1ateurdeA.MdinsetoutpdynomeannulateurdeAPlA-X4XH-k-H.LX-HUEttPlXt.Ut1PLXtH0rAestsymetriqugdancel1eestdiagonalisabk.DokMn.e

staracines simples

MAK )

=

( X

-

1) on ( Xt 1) on LX

.

Hkt 1)

2 MAHKX

-

1 , done A= In At A MAKKKDLXH ) =XI1 A±In=O A = At

MAKKX +1 A

= -

In AKA

(2)

Exercice3@N-ytzetnky4Eavecy.yEWetz.IeWt0nasCnky-zetStrD.y 't '

< SH , n ' >=<y

.

z , y '+zy=<y,y>+G , z ' >

-

Lz , y ' >

-

, zy

Or yew et Eewt done < y , =O ety ' e Wet ZEWT done A , y ' > -0

GH , xD =<y , y ' >

-

⇐ z7

De rh : < a , stKD=<y+z , y 't ' >=<y,y ' >

-

< y , -2>+4 , y ' >

-

, -27

=g,yy

-

0+0

-

Lz

,

ZD

Done Fn , KEV < n , s( xD >=< SH , xD . s est auto

.

adjoint

.

# #

GH , SW ) >=<y

.

z , y '

-

z ' >=<y,y ' >

.

Git -27--9,5>+477 ' >

.

Czj > +

Cn , n>=<y+z , y 't -27

-

Cy ,yD+<y , -27+47>+4,27

=

gig >+ ⇐ zy

¥ to

<sH , s(nD=<n , n ' > s est une isometric

So it ntov vat

.

pr

.

des de valeur propre A : swan

.

Akers , Pais que s est une isometric < SH , SH >=A , n > An , in > = a ,D ( X-D < nm >=0

X=±1 ¥0

S est auto

.

adjoint , dan ( diagonal is able

1usCXtXfDKtA@VyeWslytyetVzEWtslztxz.Dmc6ss-esppropredesdeval.pr1estWetless-esppr.desdeva1.prtestW.t

W=veH{ Ed , KB et What { (D)

.

On fait Gram

-

Schmidt sur les vedeurs

Y= ( 1 , -1,0 )

,

Vz= ( 1,0 ,

-

I ) , V3= ( l , 1,1 )

.

Et on db tent

E ;Yfy=¥#) ; ei=v

-

Hz ,eDe±=(! , )

-

HA ) , Hop ftp..dk , )=k ( k )

G- off :D , 4=03 -43,4>4

-

as ,eDez=b =¥H )

(3)

Done une ban des vat

.

pr des est €# ; to µ ; * ) )

Exercise

1 fklei )

=

e , ai t.it k [n]

.

La dem est par recurrence Sark

niIalisati-k-o.alasf0-idcnetf9eil-eiVheredite_Supposmsfkleil-eeuil-ttkcDfktYeD.fofklqt-HfkleiD.Stedoul-itkCD-EmaiM-ltIfDDmcmIltl-itlktDfDV@c.fHFtoiyEtddleD-f4eD-eeaititnCD-l-iChleil.q

.

His 1 ,

-

in C ?_ In

PKKX " -1 est un pdynsmeannulateur de C

.

Or ce pdynsme a n racines

distinct s : exp (

H

%) oil

=

0,1 ,

. .

in -1 les name ravines d ' unite

.

Or Cadmet un poly name annulakurscinde at racing simples

.

Done C est diagonal is able

.

3 C est diagonal is able

.

Done FP inversibk t.q.FKP.to " th ) =D diagonal e

F 'CkP=(PtcDk=Dk= ET : %) est diagonal

.

Done C est diagonal is able

.

4 M=a . In a , C+azd+

...

.+amCh=¥ES 9 , Ck

MMP = ¥0 ape Pick P=¥jokD

.

les val

.

propes de C sat

Xe=exp(2h%

)

=

wl

Done Fo arietta Piet Plwl )

5 M=In

.

kc

.

kdt

-

Dmc Pkk .{XhI{ X +1

Puisque W "

=

1 , Wh

'

! W

-

1 wnkwt =D et wl=6d2l¥+iSm2h±

Plwl )=

.

£ Il

.

{ wl +1

= .

£ ( Cos ¥

-

i5Yh± + Cos ¥

tisfnnd ) +1

=

1 -

Cas # 30

ksval

.

pr de M Sant 30 done M est une matrice symetriqwe 30

(4)

Exercise 5

.

@ A

=

JeH.DancAestnilpdent.DancAiestnilpotentViz1.Unematricenilpotenteestdiagcnalisab1essiel1eest0.PuisqueA-Jl4.onaMaW-Xl.DmcAi-OssiiZl.DmcAiestdiagonalisab1essiDl1@A-JetDaveckOetl1.Or

A

.

Podgy done ) An =fbE* )

Done In est la Seale valeur propre de Am

.

Done si An etait diagonal is able , on aura it think )

-

X

-

In #

AmdmIe-otXmhmpdynomeannu1ateurdeAMaiscepdynomeanracinesdisHnctes.quiimpliqneraitAdiagmalisableetdmcAtJeNaral7t1@SoitJAlaformedeJordandeAfameedesblocsJelHsur1adiagma1eSiAnestdiaganalisableAtaslJeAHmdiagonalisab6aussi.daxsoitX-Oetlfmouttoete.1zOAmdiagmalisabkialasJAtfoQjeyayg0.y

) avec li fm alas Amt ' et semblable

o

a JAM ' = ⇐ ! ¥ diagonal .

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