Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Passage: Joan Sylvia Lyttle Birman (akaberekwa musi waMay 30, 1927 muNew York City) ndiye nyanzvi yemasvomhu wekuAmerica, anoshanda mu low-dimensional topology. Akapa mipiro pakudzidza nezvemapfundo, 3-manifolds, maping mapoka emapoka emapoka, geometric group theory, contact structures uye dynamical systems. Birman parizvino ari Research Professor Emerita paBarnard College, Columbia University, kwave ari kubva muna 1973.  Mubvunzo: Joan Birman aiva nyanzvi yezvemasvomhu munharaunda ipi?
yakaderera-dimensional topology