Seven open problems in applied combinatorics. - Sinan G. Aksoy; Ryan S. Bennink; Yuzhou Chen; José Frías; Yulia R. Gel; Bill Kay; Uwe Naumann; Carlos Ortiz Marrero; Anthony V. Petyuk; Sandip Roy 002; Ignacio Segovia-Dominguez; Nate Veldt; et al. (CoRR, 2023)