Inserting several prefixed namespaces in an xml message

I'm trying to carry out an xslt transformation but I don't get the results I would like. I need to insert several namespaces with their prefixes into an xml message.

This is the message I get:

  <Operation>        
     <SessionId>?</SessionId>        
     <appUser>            
        <number1>?</number1>            
        <field2>?</field2>            
        <Properties>
           <!--Zero or more repetitions:-->
           <KeyValue>
              <Key>?</Key>
              <Value>?</Value>
           </KeyValue>
        </Properties>            
        <value3>?</value3>            
     </appUser>
  </Operation>

This is the transformation I do:

 <xsl:template match="node()|@*">
  <xsl:copy>
   <xsl:apply-templates select="node()|@*"/>
  </xsl:copy>
 </xsl:template>

 <xsl:template match="*">
  <xsl:element name="ser:{name()}" namespace="http://ift.tt/1o5xjvp">
    <xsl:copy-of select="namespace::*"/>
    <xsl:apply-templates select="node()|@*"/>
  </xsl:element>
 </xsl:template>

 <xsl:template match="*[ancestor::appUser]">
  <xsl:element name="mp:{name()}" namespace="http://ift.tt/1qNteBH">
    <xsl:copy-of select="namespace::*"/>
    <xsl:apply-templates select="@*|node()"/>
    </xsl:element>
 </xsl:template>

  <xsl:template match="*[ancestor-or-self::KeyValue ]">
    <xsl:element name="arr:{name()}" namespace="http://ift.tt/1bQEByM">
    <xsl:copy-of select="namespace::*" />
      <xsl:apply-templates select="@*|node()"/>
    </xsl:element>
  </xsl:template>

</xsl:stylesheet>

And i get the following:

<ser:Operation xmlns:ser="http://ift.tt/1o5xjvp">        
         <ser:SessionId>?</ser:SessionId>        
         <ser:appUser>            
            <mp:number1 xmlns:mp="http://ift.tt/1qNteBH">?</mp:number1>            
            <mp:field2 xmlns:mp="http://ift.tt/1qNteBH">?</mp:field2>            
            <mp:Properties xmlns:mp="http://ift.tt/1qNteBH">
               <!--Zero or more repetitions:-->
               <arr:KeyValue xmlns:arr="http://ift.tt/1bQEByM">
                  <arr:Key>?</arr:Key>
                  <arr:Value>?</arr:Value>
               </arr:KeyValue>
            </mp:Properties>            
            <mp:value3 xmlns:mp="http://ift.tt/1qNteBH">?</mp:value3>            
         </ser:appUser>
      </ser:Operation>

But I don't like seeing the namespace declaration xmlns:mp="http://ift.tt/1qNteBH" in every element.

So, could I modify my xslt to get something like the following?

<ser:Operation xmlns:ser="http://ift.tt/1o5xjvp" xmlns:mp="http://ift.tt/1qNteBH">        
         <ser:SessionId>?</ser:SessionId>        
         <ser:appUser>            
            <mp:number1 >?</mp:number1>            
            <mp:field2>?</mp:field2>            
            <mp:Properties>
               <!--Zero or more repetitions:-->
               <arr:KeyValue xmlns:arr="http://ift.tt/1bQEByM">
                  <arr:Key>?</arr:Key>
                  <arr:Value>?</arr:Value>
               </arr:KeyValue>
            </mp:Properties>            
            <mp:value3>?</mp:value3>            
         </ser:appUser>
      </ser:Operation>

Thank you in advance for your help.