diff options
Diffstat (limited to 'ga/n2.lyx')
| -rw-r--r-- | ga/n2.lyx | 532 | 
1 files changed, 368 insertions, 164 deletions
| @@ -130,9 +130,9 @@ subcuerpo  \end_inset   es inyectivo. -\end_layout +\begin_inset Note Comment +status open -\begin_deeper  \begin_layout Description  \begin_inset Formula $[1\implies2]$  \end_inset @@ -164,6 +164,7 @@ subcuerpo  .  \end_layout +\begin_deeper  \begin_layout Description  \begin_inset Formula $[2\implies1]$  \end_inset @@ -246,6 +247,11 @@ subcuerpo  \end_layout  \end_deeper +\end_inset + + +\end_layout +  \begin_layout Enumerate  Un elemento   \begin_inset Formula $a\in A$ @@ -256,9 +262,9 @@ Un elemento  \end_inset  . -\end_layout +\begin_inset Note Comment +status open -\begin_deeper  \begin_layout Enumerate  \begin_inset Argument item:1  status open @@ -279,6 +285,7 @@ status open  .  \end_layout +\begin_deeper  \begin_layout Enumerate  \begin_inset Argument item:1  status open @@ -320,6 +327,11 @@ Si  \end_layout  \end_deeper +\end_inset + + +\end_layout +  \begin_layout Enumerate  \begin_inset CommandInset label  LatexCommand label @@ -336,24 +348,28 @@ name "enu:char-domain"  \end_inset  . -\end_layout +\begin_inset Note Comment +status open -\begin_deeper -\begin_layout Standard +\begin_layout Plain Layout  Consecuencia de lo anterior.  \end_layout -\end_deeper +\end_inset + + +\end_layout +  \begin_layout Enumerate  Todo subanillo de un dominio es un dominio.  \end_layout  \begin_layout Enumerate  La característica de un dominio no trivial es 0 o un número primo. -\end_layout +\begin_inset Note Comment +status open -\begin_deeper -\begin_layout Standard +\begin_layout Plain Layout  Si la característica de   \begin_inset Formula $A$  \end_inset @@ -412,9 +428,6 @@ noprefix "false"  \end_layout -\end_deeper -\begin_layout Standard -\begin_inset Newpage pagebreak  \end_inset @@ -457,9 +470,9 @@ Para  \end_inset   es primo. -\end_layout +\begin_inset Note Comment +status open -\begin_deeper  \begin_layout Description  \begin_inset Formula $[1\implies3]$  \end_inset @@ -475,6 +488,7 @@ Para  .  \end_layout +\begin_deeper  \begin_layout Description  \begin_inset Formula $[3\implies2]$  \end_inset @@ -522,6 +536,11 @@ Para  \end_layout  \end_deeper +\end_inset + + +\end_layout +  \begin_layout Enumerate  Si   \begin_inset Formula $m\in\mathbb{Z}$ @@ -536,10 +555,10 @@ Si  \end_inset   es cuerpo. -\end_layout +\begin_inset Note Comment +status open -\begin_deeper -\begin_layout Standard +\begin_layout Plain Layout  Ambos son subanillos de   \begin_inset Formula $\mathbb{C}$  \end_inset @@ -617,20 +636,28 @@ Ambos son subanillos de  \end_layout -\end_deeper +\end_inset + + +\end_layout +  \begin_layout Enumerate  Un producto de anillos no triviales nunca es un dominio. -\end_layout +\begin_inset Note Comment +status open -\begin_deeper -\begin_layout Standard +\begin_layout Plain Layout  \begin_inset Formula $(1,0)(0,1)=(0,0)$  \end_inset  .  \end_layout -\end_deeper +\end_inset + + +\end_layout +  \begin_layout Section  Ideales maximales y primos  \end_layout @@ -688,9 +715,9 @@ name "enu:char-maximal"  \end_inset   es un cuerpo. -\end_layout +\begin_inset Note Comment +status open -\begin_deeper  \begin_layout Enumerate  \begin_inset Argument item:1  status open @@ -747,6 +774,7 @@ Si  \end_layout +\begin_deeper  \begin_layout Enumerate  \begin_inset Argument item:1  status open @@ -792,6 +820,11 @@ Los únicos ideales de  \end_layout  \end_deeper +\end_inset + + +\end_layout +  \begin_layout Enumerate  \begin_inset CommandInset label  LatexCommand label @@ -808,9 +841,9 @@ name "enu:char-prime"  \end_inset   es un dominio. -\end_layout +\begin_inset Note Comment +status open -\begin_deeper  \begin_layout Enumerate  \begin_inset Argument item:1  status open @@ -847,6 +880,7 @@ Sean   es un dominio.  \end_layout +\begin_deeper  \begin_layout Enumerate  \begin_inset Argument item:1  status open @@ -892,16 +926,21 @@ Sean  \end_layout  \end_deeper +\end_inset + + +\end_layout +  \begin_layout Enumerate  Si   \begin_inset Formula $I$  \end_inset   es maximal, es primo. -\end_layout +\begin_inset Note Comment +status open -\begin_deeper -\begin_layout Standard +\begin_layout Plain Layout  Si es maximal,   \begin_inset Formula $A/I$  \end_inset @@ -913,16 +952,20 @@ Si es maximal,   es primo.  \end_layout -\end_deeper +\end_inset + + +\end_layout +  \begin_layout Enumerate  \begin_inset Formula $A$  \end_inset   es cuerpo si y sólo si 0 es maximal. -\end_layout +\begin_inset Note Comment +status open -\begin_deeper -\begin_layout Standard +\begin_layout Plain Layout  \begin_inset Formula $A\cong A/0$  \end_inset @@ -939,16 +982,20 @@ noprefix "false"  .  \end_layout -\end_deeper +\end_inset + + +\end_layout +  \begin_layout Enumerate  \begin_inset Formula $A$  \end_inset   es dominio si y sólo si 0 es primo. -\end_layout +\begin_inset Note Comment +status open -\begin_deeper -\begin_layout Standard +\begin_layout Plain Layout  \begin_inset Formula $A\cong A/0$  \end_inset @@ -965,7 +1012,11 @@ noprefix "false"  .  \end_layout -\end_deeper +\end_inset + + +\end_layout +  \begin_layout Standard  Dado un conjunto   \begin_inset Formula $S$ @@ -998,7 +1049,11 @@ lema de Zorn:  \begin_layout Standard  Todo ideal propio de un anillo está contenido en un ideal maximal. -  +\begin_inset Note Comment +status open + +\begin_layout Plain Layout +  \series bold  Demostración:  \series default @@ -1096,6 +1151,11 @@ Demostración:  .  \end_layout +\end_inset + + +\end_layout +  \begin_layout Section  Divisibilidad  \end_layout @@ -1229,10 +1289,10 @@ Si  \end_inset  . -\end_layout +\begin_inset Note Comment +status open -\begin_deeper -\begin_layout Standard +\begin_layout Plain Layout  Sea   \begin_inset Formula $x$  \end_inset @@ -1252,7 +1312,11 @@ Sea  .  \end_layout -\end_deeper +\end_inset + + +\end_layout +  \begin_layout Standard  Dos elementos   \begin_inset Formula $a,b\in A$ @@ -1280,22 +1344,6 @@ asociados  \end_layout  \begin_layout Standard -\begin_inset ERT -status open - -\begin_layout Plain Layout - - -\backslash -begin{samepage} -\end_layout - -\end_inset - - -\end_layout - -\begin_layout Standard  Si   \begin_inset Formula $D$  \end_inset @@ -1321,7 +1369,8 @@ Si  \end_inset  . -\end_layout +\begin_inset Note Comment +status open  \begin_layout Itemize  \begin_inset Argument item:1 @@ -1416,17 +1465,6 @@ Claramente  .  \end_layout -\begin_layout Standard -\begin_inset ERT -status open - -\begin_layout Plain Layout - - -\backslash -end{samepage} -\end_layout -  \end_inset @@ -1478,7 +1516,11 @@ Si  \end_inset   es un dominio, todo primo es irreducible. -  +\begin_inset Note Comment +status open + +\begin_layout Plain Layout +  \series bold  Demostración:  \series default @@ -1555,9 +1597,18 @@ Demostración:   es análogo.  \end_layout +\end_inset + + +\end_layout +  \begin_layout Standard  Irreducible en un dominio no implica primo. -  +\begin_inset Note Comment +status open + +\begin_layout Plain Layout +  \series bold  Demostración:  \series default @@ -1648,6 +1699,11 @@ Demostración:  .  \end_layout +\end_inset + + +\end_layout +  \begin_layout Standard  Sean   \begin_inset Formula $A$ @@ -1679,9 +1735,9 @@ Sean  \end_inset  . -\end_layout +\begin_inset Note Comment +status open -\begin_deeper  \begin_layout Description  \begin_inset Formula $[1\implies2]$  \end_inset @@ -1713,6 +1769,7 @@ Sean  .  \end_layout +\begin_deeper  \begin_layout Description  \begin_inset Formula $[2\implies3\implies1]$  \end_inset @@ -1721,6 +1778,11 @@ Sean  \end_layout  \end_deeper +\end_inset + + +\end_layout +  \begin_layout Enumerate  \begin_inset Formula $a$  \end_inset @@ -1749,10 +1811,10 @@ Sean  \end_inset  . -\end_layout +\begin_inset Note Comment +status open -\begin_deeper -\begin_layout Standard +\begin_layout Plain Layout  \begin_inset Formula $a$  \end_inset @@ -1799,7 +1861,11 @@ traduciendo  .  \end_layout -\end_deeper +\end_inset + + +\end_layout +  \begin_layout Enumerate  Si   \begin_inset Formula $A$ @@ -1826,9 +1892,9 @@ Si  \end_inset  . -\end_layout +\begin_inset Note Comment +status open -\begin_deeper  \begin_layout Enumerate  \begin_inset Argument item:1  status open @@ -1894,6 +1960,7 @@ Como  .  \end_layout +\begin_deeper  \begin_layout Enumerate  \begin_inset Argument item:1  status open @@ -1977,6 +2044,11 @@ Como  \end_layout  \end_deeper +\end_inset + + +\end_layout +  \begin_layout Standard  Dados un anillo conmutativo   \begin_inset Formula $A$ @@ -2064,10 +2136,10 @@ mínimo común múltiplo  \end_inset  . -\end_layout +\begin_inset Note Comment +status open -\begin_deeper -\begin_layout Standard +\begin_layout Plain Layout  \begin_inset Formula $a$  \end_inset @@ -2104,7 +2176,11 @@ mínimo común múltiplo   Juntando ambos se obtiene el resultado.  \end_layout -\end_deeper +\end_inset + + +\end_layout +  \begin_layout Enumerate  \begin_inset Formula $a=\text{mcm}S$  \end_inset @@ -2131,10 +2207,10 @@ mínimo común múltiplo  \end_inset  . -\end_layout +\begin_inset Note Comment +status open -\begin_deeper -\begin_layout Standard +\begin_layout Plain Layout  \begin_inset Formula $a$  \end_inset @@ -2167,7 +2243,11 @@ mínimo común múltiplo   Juntando ambos se obtiene el resultado.  \end_layout -\end_deeper +\end_inset + + +\end_layout +  \begin_layout Enumerate  Si   \begin_inset Formula $a=\text{mcd}S$ @@ -2190,15 +2270,19 @@ Si  \end_inset  . -\end_layout +\begin_inset Note Comment +status open -\begin_deeper -\begin_layout Standard +\begin_layout Plain Layout  Se obtiene de la caracterización de máximo común divisor y la de asociados   por ideales principales.  \end_layout -\end_deeper +\end_inset + + +\end_layout +  \begin_layout Enumerate  Si   \begin_inset Formula $a=\text{mcm}S$ @@ -2221,14 +2305,18 @@ Si  \end_inset  . -\end_layout +\begin_inset Note Comment +status open -\begin_deeper -\begin_layout Standard +\begin_layout Plain Layout  Análogo.  \end_layout -\end_deeper +\end_inset + + +\end_layout +  \begin_layout Enumerate  \begin_inset CommandInset label  LatexCommand label @@ -2274,10 +2362,10 @@ identidad de Bézout  \end_inset  . -\end_layout +\begin_inset Note Comment +status open -\begin_deeper -\begin_layout Standard +\begin_layout Plain Layout  Si   \begin_inset Formula $b\in A$  \end_inset @@ -2293,7 +2381,11 @@ Si  .  \end_layout -\end_deeper +\end_inset + + +\end_layout +  \begin_layout Enumerate  \begin_inset Formula $\text{mcd}S=1$  \end_inset @@ -2307,9 +2399,9 @@ Si  \end_inset  . -\end_layout +\begin_inset Note Comment +status open -\begin_deeper  \begin_layout Enumerate  \begin_inset Argument item:1  status open @@ -2339,6 +2431,7 @@ Si hubiera un divisor común  .  \end_layout +\begin_deeper  \begin_layout Enumerate  \begin_inset Argument item:1  status open @@ -2360,6 +2453,11 @@ status open  \end_layout  \end_deeper +\end_inset + + +\end_layout +  \begin_layout Enumerate  Si   \begin_inset Formula $1\in(S)$ @@ -2370,10 +2468,10 @@ Si  \end_inset  . -\end_layout +\begin_inset Note Comment +status open -\begin_deeper -\begin_layout Standard +\begin_layout Plain Layout  Basta aplicar   \begin_inset CommandInset ref  LatexCommand ref @@ -2387,7 +2485,11 @@ noprefix "false"  .  \end_layout -\end_deeper +\end_inset + + +\end_layout +  \begin_layout Section  Dominios de factorización única  \end_layout @@ -2534,10 +2636,10 @@ Dado  \end_inset   es un DF. -\end_layout +\begin_inset Note Comment +status open -\begin_deeper -\begin_layout Standard +\begin_layout Plain Layout  Si   \begin_inset Formula $m$  \end_inset @@ -2620,6 +2722,7 @@ Si  .  \end_layout +\begin_deeper  \begin_layout Enumerate  \begin_inset Argument item:1  status open @@ -2652,7 +2755,7 @@ Si  .  \end_layout -\begin_layout Standard +\begin_layout Plain Layout  Sea ahora   \begin_inset Formula $x=a+b\sqrt{m}\neq0$  \end_inset @@ -2753,6 +2856,11 @@ Sea ahora  \end_layout  \end_deeper +\end_inset + + +\end_layout +  \begin_layout Standard  Un dominio   \begin_inset Formula $D$ @@ -3053,13 +3161,6 @@ Un dominio   Por tanto las factorizaciones iniciales son equivalentes.  \end_layout -\begin_layout Standard -\begin_inset Newpage pagebreak -\end_inset - - -\end_layout -  \begin_layout Section  Dominios de ideales principales  \end_layout @@ -3324,10 +3425,10 @@ El cuadrado del módulo complejo es una función euclídea en  \end_inset  . -\end_layout +\begin_inset Note Comment +status open -\begin_deeper -\begin_layout Standard +\begin_layout Plain Layout  Si   \begin_inset Formula $x:=a+bi$  \end_inset @@ -3415,7 +3516,11 @@ Si  \end_layout -\end_deeper +\end_inset + + +\end_layout +  \begin_layout Standard  Sean   \begin_inset Formula $\delta$ @@ -3442,7 +3547,8 @@ Sean  \end_inset  . -\end_layout +\begin_inset Note Comment +status open  \begin_layout Itemize  \begin_inset Argument item:1 @@ -3582,12 +3688,22 @@ Sea  \end_layout  \end_deeper +\end_inset + + +\end_layout +  \begin_layout Standard  Como   \series bold  teorema  \series default -, todo dominio euclídeo es DIP, pues si  +, todo dominio euclídeo es DIP +\begin_inset Note Comment +status open + +\begin_layout Plain Layout +, pues si   \begin_inset Formula $\delta$  \end_inset @@ -3611,6 +3727,11 @@ teorema  \begin_inset Formula $I=(a)$  \end_inset + +\end_layout + +\end_inset +  .  \end_layout @@ -3636,7 +3757,8 @@ Si  \end_inset  . -\end_layout +\begin_inset Note Comment +status open  \begin_layout Description  \begin_inset Formula $[1\iff3]$ @@ -3683,6 +3805,11 @@ Si   Obvio.  \end_layout +\end_inset + + +\end_layout +  \begin_layout Section  Cuerpos de fracciones  \end_layout @@ -3747,7 +3874,11 @@ Llamamos  \end_inset  están bien definidas. -  +\begin_inset Note Comment +status open + +\begin_layout Plain Layout +  \series bold  Demostración:  \series default @@ -3788,6 +3919,11 @@ Demostración:  .  \end_layout +\end_inset + + +\end_layout +  \begin_layout Standard  Propiedades:   \begin_inset Formula $\forall a,b\in D;s,t\in D\setminus\{0\}$ @@ -3801,81 +3937,101 @@ Propiedades:  \end_inset  . -\end_layout +\begin_inset Note Comment +status open -\begin_deeper -\begin_layout Standard +\begin_layout Plain Layout  \begin_inset Formula $\frac{a}{s}=\frac{0}{1}\iff a=a1=s0=0$  \end_inset  .  \end_layout -\end_deeper +\end_inset + + +\end_layout +  \begin_layout Enumerate  \begin_inset Formula $\frac{a}{s}=\frac{1}{1}\iff a=s$  \end_inset  . -\end_layout +\begin_inset Note Comment +status open -\begin_deeper -\begin_layout Standard +\begin_layout Plain Layout  \begin_inset Formula $\frac{a}{s}=\frac{1}{1}\iff a=a1=s1=s$  \end_inset  .  \end_layout -\end_deeper +\end_inset + + +\end_layout +  \begin_layout Enumerate  \begin_inset Formula $\frac{at}{st}=\frac{a}{s}$  \end_inset  . -\end_layout +\begin_inset Note Comment +status open -\begin_deeper -\begin_layout Standard +\begin_layout Plain Layout  \begin_inset Formula $ats=ast$  \end_inset  .  \end_layout -\end_deeper +\end_inset + + +\end_layout +  \begin_layout Enumerate  \begin_inset Formula $\frac{a}{s}=\frac{b}{s}\iff a=b$  \end_inset  . -\end_layout +\begin_inset Note Comment +status open -\begin_deeper -\begin_layout Standard +\begin_layout Plain Layout  \begin_inset Formula $\frac{a}{s}=\frac{b}{s}\iff as=bs\overset{s\neq0}{\iff}a=b$  \end_inset  .  \end_layout -\end_deeper +\end_inset + + +\end_layout +  \begin_layout Enumerate  \begin_inset Formula $\frac{a}{s}+\frac{b}{s}=\frac{a+b}{s}$  \end_inset  . -\end_layout +\begin_inset Note Comment +status open -\begin_deeper -\begin_layout Standard +\begin_layout Plain Layout  \begin_inset Formula $\frac{a}{s}+\frac{b}{s}=\frac{as+bs}{ss}=\frac{(a+b)s}{ss}=\frac{a+b}{s}$  \end_inset  .  \end_layout -\end_deeper +\end_inset + + +\end_layout +  \begin_layout Standard  De aquí,   \begin_inset Formula $(Q(D),+,\cdot)$ @@ -3902,7 +4058,11 @@ de cocientes  \end_inset   . -  +\begin_inset Note Comment +status open + +\begin_layout Plain Layout +  \series bold  Demostración:  \end_layout @@ -3970,6 +4130,11 @@ Demostración:  .  \end_layout +\end_inset + + +\end_layout +  \begin_layout Standard  Así,   \begin_inset Formula $\mathbb{Q}$ @@ -4049,10 +4214,10 @@ Propiedad universal del cuerpo de fracciones:  \end_inset  . -\end_layout +\begin_inset Note Comment +status open -\begin_deeper -\begin_layout Standard +\begin_layout Plain Layout  Si   \begin_inset Formula $\hat{f}:Q(D)\to K$  \end_inset @@ -4102,7 +4267,11 @@ Si  .  \end_layout -\end_deeper +\end_inset + + +\end_layout +  \begin_layout Enumerate  Sean   \begin_inset Formula $K$ @@ -4121,10 +4290,10 @@ Sean  \end_inset  . -\end_layout +\begin_inset Note Comment +status open -\begin_deeper -\begin_layout Standard +\begin_layout Plain Layout  El homomorfismo   \begin_inset Formula $f:=g\circ u=h\circ u$  \end_inset @@ -4152,7 +4321,11 @@ El homomorfismo  .  \end_layout -\end_deeper +\end_inset + + +\end_layout +  \begin_layout Enumerate  Sean   \begin_inset Formula $F$ @@ -4187,10 +4360,10 @@ Sean  \end_inset  . -\end_layout +\begin_inset Note Comment +status open -\begin_deeper -\begin_layout Standard +\begin_layout Plain Layout  Por la Propiedad Universal de   \begin_inset Formula $Q(D)$  \end_inset @@ -4236,7 +4409,11 @@ Por la Propiedad Universal de   triviales, es el isomorfismo buscado.  \end_layout -\end_deeper +\end_inset + + +\end_layout +  \begin_layout Standard  Sean   \begin_inset Formula $D$ @@ -4259,7 +4436,11 @@ Sean  \end_inset  . - En efecto, por la propiedad universal, existe un homomorfismo  +\begin_inset Note Comment +status open + +\begin_layout Plain Layout +En efecto, por la propiedad universal, existe un homomorfismo   \begin_inset Formula $\tilde{f}:Q(D)\to K$  \end_inset @@ -4278,6 +4459,11 @@ Sean  .  \end_layout +\end_inset + + +\end_layout +  \begin_layout Standard  De aquí, para   \begin_inset Formula $m\in\mathbb{Z}$ @@ -4296,7 +4482,11 @@ De aquí, para  \end_inset  . -  +\begin_inset Note Comment +status open + +\begin_layout Plain Layout +  \series bold  Demostración:  \series default @@ -4357,6 +4547,11 @@ y recíprocamente,  \end_layout +\end_inset + + +\end_layout +  \begin_layout Standard  Sea   \begin_inset Formula $K$ @@ -4399,7 +4594,11 @@ subcuerpo primo  \end_inset   en caso contrario. -  +\begin_inset Note Comment +status open + +\begin_layout Plain Layout +  \series bold  Demostración:  \series default @@ -4491,5 +4690,10 @@ Demostración:  \end_layout +\end_inset + + +\end_layout +  \end_body  \end_document | 
