Joan Sylvia Lyttle Birman (akaberekwa musi waMay 30, 1927 muNew York City) muAmerican mathematician, specializing in low-dimensional topology. Akapa mupiro pakudzidza kwe knots, 3-manifolds, mapping class groups of surfaces, geometric group theory, contact structures and dynamical systems. Birman parizvino ari Research Professor Emerita paBarnard College, Columbia University, kwave ari kubvira 1973. Mubvunzo: Ndeipi ndima yemasvomhu yaive hunyanzvi hwaJoan Birman?
yakaderera-dimensional topology