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Misha is the short name for Mikhael Gromov. A renowned mathematician, Gromov made significant contributions to geometry and topology. His research revolutionized the field of geometric group theory and introduced groundbreaking concepts like hyperbolic geometry and Gromov-Hausdorff convergence. Hailed as one of the most influential mathematicians of the 20th century, Gromov's impact on the discipline continues to shape modern mathematics.