In memory of Nikolai Sergeevich Bakhvalov (1934–2005)

Nikolai Sergeevich Bakhvalov was an outstanding mathematician, an Academician of the Russian Academy Sciences, a Professor of the Moscow State University (msu), and the chair of the Computational Mathematics Section in the Mechanics and Mathematics Department at msu. We have split our personal recollections of Bakhvalov into two parts. In Part I (which was written by the first author), we present the recollections of peers; in Part II (written by the second author), we present recollections of generations of Bakhvalov’s students.