Misha Verbitsky e a import�ncia da liberdade de express�o

Brazilian mathematician Mikhail (Misha) Verbitsky was detained at Yerevan airport in Armenia due to a Russian warrant accusing him of "inciting terrorism." The incident sparked urgent efforts at the Instituto de Matemática Pura e Aplicada (IMPA) to secure his release, involving legal counsel and appeals to both Brazilian and Armenian authorities. This episode underscores the critical importance of freedom of expression, especially for scholars who often traverse international borders and face unexpected legal challenges that can have profound implications for their work and freedom.