![David Bayer](/sites/default/files/styles/3_4_600x800_m/public/DaveBayer.jpg?h=9c86ceb9&itok=4wox2eES)
Faculty & Staff
Faculty
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Olin Professor of Mathematics, Chair of the Department of Mathematics
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Professor Emeriti
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Research Professor, Barnard College | Columbia University, Professor Emerita - Affiliated Professor, University of Haifa, Haifa, Israel (photo by Marianne Cooke)
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Administrative Staff
![David Bayer](/sites/default/files/styles/3_4_600x800_m/public/DaveBayer.jpg?h=9c86ceb9&itok=4wox2eES)
![Black-and-white photo of Joan Birman facing front and wearing a black sweater and pearls with a black-and-white patterned jacket over it.](/sites/default/files/styles/3_4_600x800_m/public/2021-06/Joan-photo-by-Cooke-2007_0.jpg?h=6f1d9218&itok=Na4haCQ5)
Research Professor, Barnard College | Columbia University, Professor Emerita -
Affiliated Professor, University of Haifa, Haifa, Israel
(photo by Marianne Cooke)
Department:
Mathematics
![Daniela De Silva](/sites/default/files/styles/3_4_600x800_m/public/Daniela%20De%20Silva.jpg?h=510a8108&itok=CBB6b-9h)
Olin Professor of Mathematics, Chair of the Department of Mathematics
Department:
Mathematics
Term Associate Professor of Mathematics
Department:
Mathematics
Specialization:
Mathematics
![Photo of Prof. Alisa Knizel wearing a blue hair and showing her long blond hair.](/sites/default/files/styles/3_4_600x800_m/public/2023-08/DSC_2786%20-%20Alisa%20Knizel.jpeg?h=b69e0e0e&itok=d5MwOhmc)
![Photo of Prof. Dusa McDuff](/sites/default/files/styles/3_4_600x800_m/public/2022-10/Dusa%20McDuff_2022%20cropped2.jpeg?h=638909b7&itok=4MlJfMK-)
![Walter Neumann](/sites/default/files/styles/3_4_600x800_m/public/Neumann.jpg?h=2eb5eda3&itok=FLaWGpw3)
![Marsha Peruo](/sites/default/files/styles/3_4_600x800_m/public/Peruo_Shortened.jpg?h=2a35d14f&itok=krSSYpSj)
![Lindsay Piechnik](/sites/default/files/styles/3_4_600x800_m/public/Piechnik_1.jpg?h=9e007670&itok=6-e_71ni)
Office hours announced weekly on twitter @OH_piechnik