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  <meta name="author" content="Steffen"/>
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  <meta name="date" content="2004-02-23"/>
  <meta name="keywords" content="Gaußfunktion, reelle Zahl, g-al Darstellung"/>
  <title>mathproject >> Jede positive reelle Zahl x besitzt eine g-al Darstellung</title>
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<mi>&#x211A;</mi>++++++Q
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&#160;+++++&nbsp;

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<p><u><b>Definition:</b></u> &#160;

<table><tr><td class="def">
 <div>
 
 </div></td><td class="num" width="80px">
<span class="num"><a name="1">[7.3.1]</a></span></td></tr></table>

<p class="beweis"><i>Beweis</i>: &#160;<br/>
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<h1><i>Jede positive reelle Zahl x besitzt eine g-al Darstellung</i></h1>
<hr noshade="noshade" size="1" style="margin-bottom:20px" />

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</semantics></math>. Für ein solches <i>x</i> definieren wir mit Hilfe der <span class="inf" style="white-space:normal" onmouseover="if(active0==0){position('tip0','tab0',event.clientX,event.clientY); document.getElementById('tip0').className='tooltip_v'};active0=1">
Gaußfunktion 
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<tr><td>
<p style="white-space:normal; margin-bottom:10pt"><math xmlns='http://www.w3.org/1998/Math/MathML' display='inline'>
 <mstyle displaystyle='true'><semantics>
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</math>. Dabei ist stets</p><div><math xmlns='http://www.w3.org/1998/Math/MathML' display='inline'>
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 MathType@MTEF@5@5@+=feaafeart1ev1aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLnhiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrVepeea0xe9Lq=Jc9vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=xfr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaaGimaiabgsMiJkaadIhacqGHsislcaGGBbGaamiEaiaac2facqGH8aapcaaIXaaaaa@3EBE@</annotation>
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</math>.</div>
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</span>die Folge <math xmlns='http://www.w3.org/1998/Math/MathML' display='inline'>
 <semantics>
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   <mo stretchy='false'>(</mo><mi>x</mi><mo stretchy='false'>)</mo><mo stretchy='false' lspace='0.2em' fontweight='bold' fontsize='14pt' fontfamily='Courier'>)</mo>
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</semantics></math> rekursiv durch</p>
<div>
<math xmlns='http://www.w3.org/1998/Math/MathML' display='inline'>
 <semantics>
  <mrow>
   <msub>
    <mi>r</mi>
    <mn>1</mn>
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   <mo stretchy='false'>(</mo><mi>x</mi><mo stretchy='false'>)</mo><mo lspace='0.3em' rspace='0.3em' fontsize='13pt'>&#x2254;</mo><mi>x</mi><mo>&#x22C5;</mo><mi>g</mi><mo lspace='0.9em' rspace='0.9em'>&#x2227;</mo><msub>
    <mi>r</mi>
    <mrow>
     <mi>n</mi><mo>+</mo><mn>1</mn>
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   </msub>
   <mo stretchy='false'>(</mo><mi>x</mi><mo stretchy='false'>)</mo><mo lspace='0.3em' rspace='0.3em' fontsize='13pt'>&#x2254;</mo><mo stretchy='false'>(</mo><msub>
    <mi>r</mi>
    <mi>n</mi>
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   <mo stretchy='false'>(</mo><mi>x</mi><mo stretchy='false'>)</mo><mo>&#x2212;</mo><mo stretchy='false' fontsize='14pt'>[</mo><msub>
    <mi>r</mi>
    <mi>n</mi>
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   <mo stretchy='false'>(</mo><mi>x</mi><mo stretchy='false'>)</mo><mo stretchy='false' fontsize='14pt'>]</mo><mo stretchy='false'>)</mo><mo>&#x22C5;</mo><mi>g</mi>
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<p>und setzen anschließend&#160; <math xmlns='http://www.w3.org/1998/Math/MathML' display='inline'>
 <semantics>
  <mrow>
   <msub>
    <mi>a</mi>
    <mi>n</mi>
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   <mo stretchy='false'>(</mo><mi>x</mi><mo stretchy='false'>)</mo><mo lspace='0.3em' rspace='0.3em' fontsize='13pt'>&#x2254;</mo><mo fontsize='14pt'>[</mo><msub>
    <mi>r</mi>
    <mi>n</mi>
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   <mo stretchy='false'>(</mo><mi>x</mi><mo stretchy='false'>)</mo><mo fontsize='14pt'>]</mo><mtext>.</mtext>
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 <annotation encoding='MathType-MTEF'>
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</semantics></math> Man sieht leicht, dass <math xmlns='http://www.w3.org/1998/Math/MathML' display='inline'>
 <semantics>
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   <mn>0</mn><mo>&#x2264;</mo><msub>
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 <annotation encoding='MathType-MTEF'>
 MathType@MTEF@5@5@+=feaafeart1ev1aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLnhiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrVepeea0xe9Lq=Jc9vqaqpepm0xbba9pwe9Q8fs0=qqaqpepae9pg0FirpepeKkFr0xfr=xfr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaaGimaiabgsMiJkaadkhadaWgaaWcbaGaamOBaaqabaGccaGGOaGaamiEaiaacMcacqGH8aapcaWGNbaaaa@3E3E@</annotation>
</semantics></math>, also ist auch <math xmlns='http://www.w3.org/1998/Math/MathML' display='inline'>
 <semantics>
  <mrow>
   <mn>0</mn><mo>&#x2264;</mo><mo fontsize='14pt'>[</mo><msub>
    <mi>r</mi>
    <mi>n</mi>
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   <mo stretchy='false'>(</mo><mi>x</mi><mo stretchy='false'>)</mo><mo fontsize='14pt'>]</mo><mo>&#x003C;</mo><mi>g</mi>
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 <annotation encoding='MathType-MTEF'>
 MathType@MTEF@5@5@+=feaafeart1ev1aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLnhiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrVepeea0xe9Lq=Jc9vqaqpepm0xbba9pwe9Q8fs0=qqaqpepae9pg0FirpepeKkFr0xfr=xfr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaaGimaiabgsMiJkaacUfacaWGYbWaaSbaaSqaaiaad6gaaeqaaOGaaiikaiaadIhacaGGPaGaaiyxaiabgYda8iaadEgaaaa@3FFE@</annotation>
</semantics></math>. Daher ist&#160; <math xmlns='http://www.w3.org/1998/Math/MathML' display='inline'>
 <semantics>
  <mrow>
   <msub>
    <mi>a</mi>
    <mi>n</mi>
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   <mo stretchy='false'>(</mo><mi>x</mi><mo stretchy='false'>)</mo><mo>&#x2208;</mo><msub>
    <mi>Z</mi>
    <mi>g</mi>
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  </mrow>
 <annotation encoding='MathType-MTEF'>
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</semantics></math>
.<br/>&#160;</p>

<p>Beim Nachweis der folgenden Aussagen beachte man, dass nach Eigenschaften der Gaußfunktion die Zahl&#160; <math xmlns='http://www.w3.org/1998/Math/MathML' display='inline'>
 <semantics>
  <mrow>
   <mi>x</mi><mo>&#x22C5;</mo><mi>g</mi><mo>&#x2212;</mo><msub>
    <mi>a</mi>
    <mn>1</mn>
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   <mo stretchy='false'>(</mo><mi>x</mi><mo stretchy='false'>)</mo><mo>=</mo><msub>
    <mi>r</mi>
    <mn>1</mn>
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   <mo stretchy='false'>(</mo><mi>x</mi><mo stretchy='false'>)</mo><mo>&#x2212;</mo><mo stretchy='false' fontsize='14pt'>[</mo><msub>
    <mi>r</mi>
    <mn>1</mn>
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</semantics></math>&#160; stets in <math xmlns='http://www.w3.org/1998/Math/MathML' display='inline'>
 <semantics>
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 <annotation encoding='MathType-MTEF'>
 MathType@MTEF@5@5@+=feaafeart1ev1aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLnhiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrVepeea0xe9Lq=Jc9vqaqpepm0xbba9pwe9Q8fs0=qqaqpepae9pg0FirpepeKkFr0xfr=xfr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaai4waiaaicdacaGGSaGaaGymaiaacUfaaaa@394C@</annotation>
</semantics></math> liegt.</p>
<ol>
<li>
<math xmlns='http://www.w3.org/1998/Math/MathML' display='inline'>
 <semantics>
  <mrow>
   <msub>
    <mi>r</mi>
    <mi>n</mi>
   </msub>
   <mo stretchy='false'>(</mo><mi>x</mi><mo>&#x22C5;</mo><mi>g</mi><mo>&#x2212;</mo><msub>
    <mi>a</mi>
    <mn>1</mn>
   </msub>
   <mo stretchy='false'>(</mo><mi>x</mi><mo stretchy='false'>)</mo><mo stretchy='false'>)</mo><mo>=</mo><msub>
    <mi>r</mi>
    <mrow>
     <mi>n</mi><mo>+</mo><mn>1</mn>
    </mrow>
   </msub>
   <mo stretchy='false'>(</mo><mi>x</mi><mo stretchy='false'>)</mo><mtext>&#160; für alle &#160;</mtext><mi>n</mi><mo>&#x2208;</mo><msup>
    <mi>&#x2115;</mi>
    <mo>&#x2217;</mo>
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  </mrow>
 <annotation encoding='MathType-MTEF'>
 MathType@MTEF@5@5@+=feaafeart1ev1aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLnhiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrVepeea0xe9Lq=Jc9vqaqpepm0xbba9pwe9Q8fs0=qqaqpepae9pg0FirpepeKkFr0xfr=xfr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaamOCamaaBaaaleaacaWGUbaabeaakiaacIcacaWG4bGaeyyXICTaam4zaiabgkHiTiaadggadaWgaaWcbaGaaGymaaqabaGccaGGOaGaamiEaiaacMcacaGGPaGaeyypa0JaamOCamaaBaaaleaacaWGUbGaey4kaSIaaGymaaqabaGccaGGOaGaamiEaiaacMcacaqGMbGaaei=aiaabkhacaqGGaGaaeyyaiaabYgacaqGSbGaaeyzaiaad6gacqGHiiIZcqWIvesPdaahaaWcbeqaaiabgEHiQaaaaaa@55F1@</annotation>
</semantics></math>
<p style="margin-left: 10pt"><i>Beweis</i>&#160; per Induktion:</p>
<p style="margin-left: 10pt">
<span style="font-size:10pt; color:blue">&#9658; &#160; </span><math xmlns='http://www.w3.org/1998/Math/MathML' display='inline'>
 <semantics>
  <mrow>
   <msub>
    <mi>r</mi>
    <mn>1</mn>
   </msub>
   <mo stretchy='false'>(</mo><mi>x</mi><mo>&#x22C5;</mo><mi>g</mi><mo>&#x2212;</mo><msub>
    <mi>a</mi>
    <mn>1</mn>
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   <mo stretchy='false'>(</mo><mi>x</mi><mo stretchy='false'>)</mo><mo stretchy='false'>)</mo><mo>=</mo><mo stretchy='false'>(</mo><mi>x</mi><mo>&#x22C5;</mo><mi>g</mi><mo>&#x2212;</mo><mo stretchy='false' fontsize='14pt'>[</mo><msub>
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<p style="margin-left: 7pt">
<math xmlns='http://www.w3.org/1998/Math/MathML' display='inline'>
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    <mtr columnalign='left'>
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<br/>&#160;
</p>
</li>
<li>
<math xmlns='http://www.w3.org/1998/Math/MathML' display='inline'>
 <semantics>
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   <msub>
    <mi>a</mi>
    <mi>n</mi>
   </msub>
   <mo stretchy='false'>(</mo><mi>x</mi><mo>&#x22C5;</mo><mi>g</mi><mo>&#x2212;</mo><msub>
    <mi>a</mi>
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    <mi>a</mi>
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<p style="margin-left: 10pt">Der <i>Beweis</i>&#160; folgt direkt aus 1.<br/>&#160;</p>
</li>
<li>Für alle <math xmlns='http://www.w3.org/1998/Math/MathML' display='inline'>
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  <mrow>
   <mi>n</mi><mo>&#x2208;</mo><msup>
    <mi>&#x2115;</mi>
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</semantics></math> gilt:&#160; 
<math xmlns='http://www.w3.org/1998/Math/MathML' display='inline'>
<mstyle displaystyle='true'>
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    <mi>n</mi>
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   <mrow>
    <mfrac>
     <mrow>
      <msub>
       <mi>a</mi>
       <mi>i</mi>
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     <mrow>
      <msup>
       <mi>g</mi>
       <mi>i</mi>
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     </mrow>
    </mfrac>
    
   </mrow>
   <mo stretchy='false' rspace='0.1em' lspace='0.1em'>&#x007C;</mo><mo>&#x2264;</mo><mfrac>
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     <msup>
      <mi>g</mi>
      <mi>n</mi>
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    </mrow>
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  </mrow>
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</mstyle>
</math>
<p style="margin-left: 10pt"><i>Beweis</i>&#160; per Induktion:</p>
<p style="margin-left: 10pt">
<span style="font-size:10pt; color:blue">&#9658; &#160; </span><math xmlns='http://www.w3.org/1998/Math/MathML' display='inline'>
<mstyle displaystyle='true'>
 <semantics>
  <mrow>
   <mo stretchy='false' rspace='0.1em' lspace='0.1em'>&#x007C;</mo><mi>x</mi><mo>&#x2212;</mo><mfrac>
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    <mi>g</mi>
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   <mo stretchy='false' rspace='0.1em' lspace='0.1em'>&#x007C;</mo><mo>=</mo><mo stretchy='false' rspace='0.1em' lspace='0.1em'>&#x007C;</mo><mi>x</mi><mo>&#x2212;</mo><mfrac>
    <mrow>
     <mo stretchy='false' fontsize='14pt'>[</mo><mi>x</mi><mo>&#x22C5;</mo><mi>g</mi><mo stretchy='false' fontsize='14pt'>]</mo>
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    <mi>g</mi>
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   <mo stretchy='false' rspace='0.1em' lspace='0.1em'>&#x007C;</mo><mo>=</mo><mfrac>
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</math>
</p>
<p style="margin-left: 10pt">
<span style="font-size:10pt; color:blue">&#9658; &#160; </span>Beim Induktionsschluss setzen wir die Induktionsvoraussetzung für <math xmlns='http://www.w3.org/1998/Math/MathML' display='inline'>
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</semantics></math> ein!</p>
<p style="margin-left: 10pt">
<math xmlns='http://www.w3.org/1998/Math/MathML' display='inline'>
<mstyle displaystyle='true'>
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  <mrow>
   <mtable columnalign='left' columnspacing='0em'>
    <mtr columnalign='left'>
     <mtd columnalign='left'>
      <mrow>
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        <mo stretchy='false'>&#x2211;</mo>
        <mrow>
         <mi>i</mi><mo>=</mo><mn>1</mn>
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        <mrow>
         <mi>n</mi><mo>+</mo><mn>1</mn>
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       <mrow>
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           <mi>i</mi>
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         <mrow>
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        <mi>a</mi>
        <mn>1</mn>
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        <mo stretchy='false'>&#x2211;</mo>
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        <mi>n</mi>
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         <mrow>
          <msub>
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          </msub>
          <mo stretchy='false'>(</mo><mi>x</mi><mo stretchy='false'>)</mo>
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    <mtr columnalign='left'>
     <mtd columnalign='left'>
      <mrow></mrow>
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     <mtd columnalign='left'>
      <mrow>
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     <mtd columnalign='left'>
      <mrow></mrow>
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     <mtd columnalign='left'>
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          <mi>n</mi>
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       <mo>=</mo><mfrac>
        <mn>1</mn>
        <mrow>
         <msup>
          <mi>g</mi>
          <mrow>
           <mi>n</mi><mo>+</mo><mn>1</mn>
          </mrow>
         </msup>
         
        </mrow>
       </mfrac>
       
      </mrow>
     </mtd>
    </mtr>
    
   </mtable>
  </mrow>
 <annotation encoding='MathType-MTEF'>
 MathType@MTEF@5@5@+=feaafeart1ev1aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLnhiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrVepeea0xe9Lq=Jc9vqaqpepm0xbba9pwe9Q8fs0=qqaqpepae9pg0FirpepeKkFr0xfr=xfr=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@95FC@</annotation>
</semantics>
</mstyle>
</math><br/>&#160;
</p>
</li>
</ol>
<p>Aus 3. ergibt sich nun unmittelbar die Gleichung&#160; 
<math xmlns='http://www.w3.org/1998/Math/MathML' display='inline'>
<mstyle displaystyle='true'>
 <semantics>
  <mrow>
   <mi>x</mi><mo>=</mo><munderover>
    <mo stretchy='false'>&#x2211;</mo>
    <mrow>
     <mi>i</mi><mo>=</mo><mn>1</mn>
    </mrow>
    <mi>&#x221E;</mi>
   </munderover>
   <mrow>
    <mfrac>
     <mrow>
      <msub>
       <mi>a</mi>
       <mi>i</mi>
      </msub>
      <mo stretchy='false'>(</mo><mi>x</mi><mo stretchy='false'>)</mo>
     </mrow>
     <mrow>
      <msup>
       <mi>g</mi>
       <mi>i</mi>
      </msup>
      
     </mrow>
    </mfrac>
    
   </mrow>
   
  </mrow>
 <annotation encoding='MathType-MTEF'>
 MathType@MTEF@5@5@+=feaafeart1ev1aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLnhiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrVepeea0xe9Lq=Jc9vqaqpepm0xbba9pwe9Q8fs0=qqaqpepae9pg0FirpepeKkFr0xfr=xfr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaamiEaiabg2da9maaqahabaWaaSaaaeaacaWGHbWaaSbaaSqaaiaadMgaaeqaaOGaaiikaiaadIhacaGGPaaabaGaam4zamaaCaaaleqabaGaamyAaaaaaaaabaGaamyAaiabg2da9iaaigdaaeaacqGHEisPa0GaeyyeIuoaaaa@443A@</annotation>
</semantics>
</mstyle>
</math>, so dass wir uns nur noch von der einschränkenden Bedingung an <i>x</i> frei machen müssen. Sei also jetzt <math xmlns='http://www.w3.org/1998/Math/MathML' display='inline'>
 <semantics>
  <mrow>
   <mi>x</mi><mo>&#x2265;</mo><mn>0</mn>
  </mrow>
 <annotation encoding='MathType-MTEF'>
 MathType@MTEF@5@5@+=feaafeart1ev1aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLnhiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrVepeea0xe9Lq=Jc9vqaqpepm0xbba9pwe9Q8fs0=qqaqpepae9pg0FirpepeKkFr0xfr=xfr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaamiEaiabgwMiZkaaicdaaaa@38E6@</annotation>
</semantics></math> eine beliebige positive reelle Zahl. Mit&#160; <math xmlns='http://www.w3.org/1998/Math/MathML' display='inline'>
 <semantics>
  <mrow>
   <mi>n</mi><mo lspace='0.3em' rspace='0.3em' fontsize='13pt'>&#x2254;</mo><mi>min</mi><mo>&#x2061;</mo><mo stretchy='false'>&#x007B;</mo><mi>k</mi><mo>&#x2208;</mo><mi>&#x2115;</mi><mo stretchy='false' fontsize='14pt'>&#x007C;</mo><mi>x</mi><mo>&#x003C;</mo><msup>
    <mi>g</mi>
    <mi>k</mi>
   </msup>
   <mo stretchy='false'>&#x007D;</mo>
  </mrow>
 <annotation encoding='MathType-MTEF'>
 MathType@MTEF@5@5@+=feaafeart1ev1aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLnhiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrVepeea0xe9Lq=Jc9vqaqpepm0xbba9pwe9Q8fs0=qqaqpepae9pg0FirpepeKkFr0xfr=xfr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaamOBaiabg2da9iGac2gacaGGPbGaaiOBaiaacUhacaWGRbGaeyicI4SaeSyfHuQaaiiFaiaadIhacqGH8aapcaWGNbWaaWbaaSqabeaacaWGRbaaaOGaaiyFaaaa@4528@</annotation>
</semantics></math>&#160; (beachte: <math xmlns='http://www.w3.org/1998/Math/MathML' display='inline'>
 <semantics>
  <mrow>
   <mo stretchy='false' rspace='0.2em' fontweight='bold' fontsize='14pt' fontfamily='Courier'>(</mo><msup>
    <mi>g</mi>
    <mi>n</mi>
   </msup>
   <mo stretchy='false' lspace='0.2em' fontweight='bold' fontsize='14pt' fontfamily='Courier'>)</mo>
  </mrow>
 <annotation encoding='MathType-MTEF'>
 MathType@MTEF@5@5@+=feaafeart1ev1aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLnhiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrVepeea0xe9Lq=Jc9vqaqpepm0xbba9pwe9Q8fs0=qqaqpepae9pg0FirpepeKkFr0xfr=xfr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaaiikaiaadEgadaahaaWcbeqaaiaad6gaaaGccaGGPaaaaa@38D8@</annotation>
</semantics></math> ist unbeschränkt) ist dann&#160; <math xmlns='http://www.w3.org/1998/Math/MathML' display='inline'>
<mstyle displaystyle='true'>
 <semantics>
  <mrow>
   <mfrac>
    <mi>x</mi>
    <mrow>
     <msup>
      <mi>g</mi>
      <mi>n</mi>
     </msup>
     
    </mrow>
   </mfrac>
   <mo>&#x2208;</mo><mo stretchy='false' rspace='0.1em' lspace='0.1em'>[</mo><mn>0</mn><mo rspace='0.1em' lspace='0.1em'>,</mo><mn>1</mn><mo stretchy='false' rspace='0.1em' lspace='0.1em'>[</mo>
  </mrow>
 <annotation encoding='MathType-MTEF'>
 MathType@MTEF@5@5@+=feaafeart1ev1aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLnhiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrVepeea0xe9Lq=Jc9vqaqpepm0xbba9pwe9Q8fs0=qqaqpepae9pg0FirpepeKkFr0xfr=xfr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaWaaSaaaeaacaWG4baabaGaam4zamaaCaaaleqabaGaamOBaaaaaaGccqGHiiIZcaGGBbGaaGimaiaacYcacaaIXaGaai4waaaa@3DF3@</annotation>
</semantics>
</mstyle>
</math>. </p>
<p>Setzt man jetzt</p>
<div>
<math xmlns='http://www.w3.org/1998/Math/MathML' display='inline'>
<mstyle displaystyle='true'>
 <semantics>
  <mrow>
   <msub>
    <mi>x</mi>
    <mi>i</mi>
   </msub>
   <mo lspace='0.3em' rspace='0.3em' fontsize='13pt'>&#x2254;</mo><msub>
    <mi>a</mi>
    <mi>i</mi>
   </msub>
   <mo stretchy='false'>(</mo><mfrac>
    <mi>x</mi>
    <mrow>
     <msup>
      <mi>g</mi>
      <mi>n</mi>
     </msup>
     
    </mrow>
   </mfrac>
   <mo stretchy='false'>)</mo>
  </mrow>
 <annotation encoding='MathType-MTEF'>
 MathType@MTEF@5@5@+=feaafeart1ev1aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLnhiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrVepeea0xe9Lq=Jc9vqaqpepm0xbba9pwe9Q8fs0=qqaqpepae9pg0FirpepeKkFr0xfr=xfr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaamiEamaaBaaaleaacaWGPbaabeaakiabg2da9iaadggadaWgaaWcbaGaamyAaaqabaGccaGGOaWaaSaaaeaacaWG4baabaGaam4zamaaCaaaleqabaGaamOBaaaaaaGccaGGPaaaaa@3F16@</annotation>
</semantics>
</mstyle>
</math>&#160; für <math xmlns='http://www.w3.org/1998/Math/MathML' display='inline'>
 <semantics>
  <mrow>
   <mi>i</mi><mo>&#x003E;</mo><mn>0</mn>
  </mrow>
 <annotation encoding='MathType-MTEF'>
 MathType@MTEF@5@5@+=feaafeart1ev1aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLnhiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrVepeea0xe9Lq=Jc9vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=xfr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaamyAaiabg6da+iaaicdaaaa@3899@</annotation>
</semantics></math>&#160; und zusätzlich&#160; <math xmlns='http://www.w3.org/1998/Math/MathML' display='inline'>
 <semantics>
  <mrow>
   <msub>
    <mi>x</mi>
    <mn>0</mn>
   </msub>
   <mo lspace='0.3em' rspace='0.3em' fontsize='13pt'>&#x2254;</mo><mn>0</mn>
  </mrow>
 <annotation encoding='MathType-MTEF'>
 MathType@MTEF@5@5@+=feaafeart1ev1aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLnhiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrVepeea0xe9Lq=Jc9vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=xfr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaamiEamaaBaaaleaacaaIWaaabeaakiabg2da9iaaicdaaaa@3996@</annotation>
</semantics></math>,
</div>
<p>so gilt:&#160; <math xmlns='http://www.w3.org/1998/Math/MathML' display='inline'>
<mstyle displaystyle='true'>
 <semantics>
  <mrow>
   <mfrac>
    <mi>x</mi>
    <mrow>
     <msup>
      <mi>g</mi>
      <mi>n</mi>
     </msup>
     
    </mrow>
   </mfrac>
   <mo>=</mo><munderover>
    <mo stretchy='false'>&#x2211;</mo>
    <mrow>
     <mi>i</mi><mo>=</mo><mn>0</mn>
    </mrow>
    <mi>&#x221E;</mi>
   </munderover>
   <mrow>
    <mfrac>
     <mrow>
      <msub>
       <mi>x</mi>
       <mi>i</mi>
      </msub>
      
     </mrow>
     <mrow>
      <msup>
       <mi>g</mi>
       <mi>i</mi>
      </msup>
      
     </mrow>
    </mfrac>
    
   </mrow>
   
  </mrow>
 <annotation encoding='MathType-MTEF'>
 MathType@MTEF@5@5@+=feaafeart1ev1aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLnhiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrVepeea0xe9Lq=Jc9vqaqpepm0xbba9pwe9Q8fs0=qqaqpepae9pg0FirpepeKkFr0xfr=xfr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaWaaSaaaeaacaWG4baabaGaam4zamaaCaaaleqabaGaamOBaaaaaaGccqGH9aqpdaaeWbqaamaalaaabaGaamiEamaaBaaaleaacaWGPbaabeaaaOqaaiaadEgadaahaaWcbeqaaiaadMgaaaaaaaqaaiaadMgacqGH9aqpcaaIWaaabaGaeyOhIukaniabggHiLdaaaa@4420@</annotation>
</semantics>
</mstyle>
</math>&#160; und damit hat man schließlich:
</p>
<div>
<math xmlns='http://www.w3.org/1998/Math/MathML' display='inline'>
<mstyle displaystyle='true'>
 <semantics>
  <mrow>
   <mi>x</mi><mo>=</mo><munderover>
    <mo stretchy='false'>&#x2211;</mo>
    <mrow>
     <mi>i</mi><mo>=</mo><mn>0</mn>
    </mrow>
    <mi>&#x221E;</mi>
   </munderover>
   <mrow>
    <mfrac>
     <mrow>
      <msub>
       <mi>x</mi>
       <mi>i</mi>
      </msub>
      
     </mrow>
     <mrow>
      <msup>
       <mi>g</mi>
       <mrow>
        <mi>i</mi><mo>&#x2212;</mo><mi>n</mi>
       </mrow>
      </msup>
      
     </mrow>
    </mfrac>
    
   </mrow>
   <mo>=</mo><munderover>
    <mo stretchy='false'>&#x2211;</mo>
    <mrow>
     <mi>i</mi><mo>=</mo><mo>&#x2212;</mo><mi>n</mi>
    </mrow>
    <mi>&#x221E;</mi>
   </munderover>
   <mrow>
    <mfrac>
     <mrow>
      <msub>
       <mi>x</mi>
       <mrow>
        <mi>i</mi><mo>+</mo><mi>n</mi>
       </mrow>
      </msub>
      
     </mrow>
     <mrow>
      <msup>
       <mi>g</mi>
       <mi>i</mi>
      </msup>
      
     </mrow>
    </mfrac>
    
   </mrow>
   <mo>=</mo><munderover>
    <mo stretchy='false'>&#x2211;</mo>
    <mrow>
     <mi>i</mi><mo>=</mo><mo>&#x2212;</mo><mi>n</mi>
    </mrow>
    <mn>0</mn>
   </munderover>
   <mrow>
    <mfrac>
     <mrow>
      <msub>
       <mi>x</mi>
       <mrow>
        <mi>i</mi><mo>+</mo><mi>n</mi>
       </mrow>
      </msub>
      
     </mrow>
     <mrow>
      <msup>
       <mi>g</mi>
       <mi>i</mi>
      </msup>
      
     </mrow>
    </mfrac>
    
   </mrow>
   <mo>+</mo><munderover>
    <mo stretchy='false'>&#x2211;</mo>
    <mrow>
     <mi>i</mi><mo>=</mo><mn>1</mn>
    </mrow>
    <mi>&#x221E;</mi>
   </munderover>
   <mrow>
    <mfrac>
     <mrow>
      <msub>
       <mi>x</mi>
       <mrow>
        <mi>i</mi><mo>+</mo><mi>n</mi>
       </mrow>
      </msub>
      
     </mrow>
     <mrow>
      <msup>
       <mi>g</mi>
       <mi>i</mi>
      </msup>
      
     </mrow>
    </mfrac>
    
   </mrow>
   <mo>=</mo><msub>
    <mi>x</mi>
    <mn>0</mn>
   </msub>
   <msup>
    <mi>g</mi>
    <mi>n</mi>
   </msup>
   <mo>+</mo><mo>&#x2026;</mo><mo>+</mo><msub>
    <mi>x</mi>
    <mi>n</mi>
   </msub>
   <msup>
    <mi>g</mi>
    <mn>0</mn>
   </msup>
   <mo>+</mo><munderover>
    <mo stretchy='false'>&#x2211;</mo>
    <mrow>
     <mi>i</mi><mo>=</mo><mn>1</mn>
    </mrow>
    <mi>&#x221E;</mi>
   </munderover>
   <mrow>
    <mfrac>
     <mrow>
      <msub>
       <mi>x</mi>
       <mrow>
        <mi>i</mi><mo>+</mo><mi>n</mi>
       </mrow>
      </msub>
      
     </mrow>
     <mrow>
      <msup>
       <mi>g</mi>
       <mi>i</mi>
      </msup>
      
     </mrow>
    </mfrac>
    
   </mrow>
   
  </mrow>
 <annotation encoding='MathType-MTEF'>
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</semantics>
</mstyle>
</math>
</div>

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