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 |
