Question: What scientific carreer do both Efim Zelmanov and Lazar Lyusternik have in common?
Context: The American Statistician is a quarterly peer-reviewed scientific journal covering statistics published by Taylor & Francis on behalf of the American Statistical Association.  It was established in 1947 and the editor-in-chief is Nicole Lazar (University of Georgia). Jefimija (] ) (1349–1405), secular name Jelena Mrnjavčević (] ] ), daughter of Vojihna and widow of Jovan Uglješa Mrnjavčević is considered the first female Serbian poet, famous in Serbian medieval literature are her "Lament for a Dead Son" and "Encomium of Prince Lazar".  The laments, a strictly feminine form of lyric, is common to some Slavic languages (called "tužbalice" in Serbian), and long narrative laments are intimately connected with heroic epic songs (example, Yarsolavna's lament in the "The Tale of Igor's Campaign"). Milica (Serbian Cyrillic: Милица; pronounced Millitsa) is a feminine name popular in Slavic countries.  It is derived from the Slavic word element "mil(a)", meaning "kind" and "dear", with the diminutive suffix "-itsa".  The name was used for a number of queens and princesses, including Princess Milica of Serbia, wife of Lazar of Serbia, who is honored as a saint in the Serbian Orthodox Church.  Milica has been the most popular name for girls born in Serbia since 1991, and is overall the most common female given name in the country.  The name is occasionally given the phonetic spelling "Militza" in English speaking countries.  The name of Princess Milica of Montenegro was often translated as Militza in English language publications. This is a list of common names of lichen genera.  When a common name for a lichen genus is the same as the scientific name for that genus, it is not included in the following list.  This list only includes genera common names that are widely used, as indicated by the common name either appearing in a peer reviewed scientific publication or in a scientifically reliable reference source. Efim Isaakovich Zelmanov (Russian: Ефи́м Исаа́кович Зе́льманов ; born 7 September 1955 in Khabarovsk) is a Russian-American mathematician, known for his work on combinatorial problems in nonassociative algebra and group theory, including his solution of the restricted Burnside problem.  He was awarded a Fields Medal at the International Congress of Mathematicians in Zürich in 1994. Lazar Aronovich Lyusternik (also Lusternik, Lusternick, Ljusternik; Ла́зарь Аро́нович Люсте́рник ; 31 December 1899, Zduńska Wola, Congress Poland, Russian Empire (present-day Republic of Poland) – 23 July 1981, Moscow, Russia, Soviet Union) was a Soviet mathematician. Lazarov (Cyrillic: Лазаров) is a common Bulgarian and Macedonian family name.  Variants of the name include Lazarof and Lazaroff.  The family name is derived from the personal name Лазар "Lazar", "Lazarus". Sparse grids are numerical techniques to represent, integrate or interpolate high dimensional functions.  They were originally developed by the Russian mathematician Sergey A. Smolyak, a student of Lazar Lyusternik, and are based on a sparse tensor product construction.  Computer algorithms for efficient implementations of such grids were later developed by Michael Griebel and Christoph Zenger. There are two types of misconceptions that people have about the world, particularly the world as understood by science.  There are common working (common sense) assumptions that contradict the conclusions of scientific study, such as the concept of impetus .  On the other hand, there are misconceptions that emerge (or are installed) through the course of formal instruction - we can be termed didaskalogenic (born through teaching).  Both the content associated with a particular subject, and its implications, are influenced by mode of instruction used to present it.  Instructional strategies range from the Socratic to the passive lecture format.  Given their inherently abstract nature, many scientific concepts, such as Newton's laws of motion directly conflict a "working" and immediate understanding of the world.  Where this is the case, such conceptual conflicts can give rise to serious obstacles to students' acceptance and understanding of scientific ideas.  In contrast, a wide range of other scientific ideas, assumptions, and concepts are not obviously related to practical experience.  Students' misconceptions about these more abstract scientific ideas, for example, the atomic theory, the wave–particle nature of light, the cell theory of biological organization and continuity, and various aspects of modern evolutionary theory are often grounded in, and influenced by past instruction.  In analogy to physician-induced (iatrogenic) disease (iatrogenesis), didaskologenic (or didaktikogenic) (from the Greek "dáskalos" for "teacher") ideas (and misconceptions) arise from and are reinforced during the course of instruction.  Particularly in the more abstract sciences, where many ideas are inherently counter-intuitive, didaskologenic scientific misconceptions often arise through the use of inappropriate analogies in the course of instruction. Lazar (Russian Ла́зарь; Serbian Cyrillic, Bulgarian and Macedonian Лазар, "Lazar") or Llazar () is a male given name or a surname.  This abbreviated form of Lazarus is especially common in various Slavic languages.  It's also used in Albanian, Hungarian and Romanian.  The name is derived from the Hebrew name אֶלְעָזָר (Elʿazar, or Eleazar), meaning "God has helped".
Answer: mathematician