Positivity of Grassmannian quantum K-theory 
        
    
    演讲者
            
                                Nicolas Perrin
                            
        时间
            
            2024年09月05日 15:00 至 16:00
            
        地点
            
                A6-101
            
        线上
            
                Zoom 638 227 8222
                (BIMSA)
            
        摘要
            
                 (j.w. A. Buch, P.-E. Chaput and L. Mihalcea) I will introduce quantum K-theory for rational projective homogeneous spaces which is an avatar of Schubert calculus. As for many generalisations of Schubert calculus, one expects positivity properties of the product of Schubert classes in quantum K-theory. I will explain, in the case of Grassmannian, a (positive) result in this direction.
            
         
                 
                                         
                                         
                                        