$q$-Universal characters and an~extension of the~lattice  $q$-universal characters
    
    
  
  
  
      
      
      
        
Teoretičeskaâ i matematičeskaâ fizika, Tome 208 (2021) no. 1, pp. 51-68
    
  
  
  
  
  
    
      
      
        
      
      
      
    Voir la notice de l'article provenant de la source Math-Net.Ru
            
              			We consider two different subjects: the $q$-deformed universal characters $\widetilde S_{[\lambda,\mu]}(t,\hat t;x,\hat x)$ and the $q$-deformed universal character hierarchy. The former are an extension of $q$-deformed Schur polynomials, and the latter can be regarded as a generalization of the $q$-deformed KP hierarchy. We investigate solutions of the $q$-deformed universal character hierarchy and find that the solution can be expressed by the boson–fermion correspondence. We also study a two-component integrable system of $q$-difference equations satisfied by the two-component universal character.
			
            
            
            
          
        
      
                  
                    
                    
                    
                    
                    
                      
Mots-clés : 
$q$-deformation, boson–fermion correspondence
Keywords: universal character, $q$-deformed universal character hierarchy, lattice $q$-deformed universal character hierarchy.
                    
                  
                
                
                Keywords: universal character, $q$-deformed universal character hierarchy, lattice $q$-deformed universal character hierarchy.
@article{TMF_2021_208_1_a3,
     author = {Yang Gao and Chuanzhong Li},
     title = {$q${-Universal} characters and an~extension of the~lattice  $q$-universal characters},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {51--68},
     publisher = {mathdoc},
     volume = {208},
     number = {1},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2021_208_1_a3/}
}
                      
                      
                    TY - JOUR AU - Yang Gao AU - Chuanzhong Li TI - $q$-Universal characters and an~extension of the~lattice $q$-universal characters JO - Teoretičeskaâ i matematičeskaâ fizika PY - 2021 SP - 51 EP - 68 VL - 208 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TMF_2021_208_1_a3/ LA - ru ID - TMF_2021_208_1_a3 ER -
Yang Gao; Chuanzhong Li. $q$-Universal characters and an~extension of the~lattice $q$-universal characters. Teoretičeskaâ i matematičeskaâ fizika, Tome 208 (2021) no. 1, pp. 51-68. http://geodesic.mathdoc.fr/item/TMF_2021_208_1_a3/
