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              Abstract 
             
           
          
            
We introduce a periodic form of the iterated algebraic
 
K  -theory of
 
k u  , the (connective)
 complex 
K  -theory
 spectrum, as well as a natural twisting of this cohomology theory by higher gerbes.
 Furthermore, we prove a form of topological T-duality for sphere bundles oriented
 with respect to this theory.
 
 
           
        
        
          
            
              Keywords 
              
                T-duality, iterated algebraic $K$-theory, twisted
                $K$-theory, $n$-gerbes
              
             
           
        
        
          
            
              Mathematical Subject Classification 2010 
              
                Primary: 19D99, 55N20, 55R15, 55R65
              
              
                Secondary: 18D05, 19L50, 55P43
              
             
           
        
        
          
            
              Milestones 
              
                Received: 8 December 2017
              
              
                Revised: 12 August 2019
              
              
                Accepted: 28 August 2019
              
              
                Published: 21 March 2020