Question: Which literature prize did the scientist who discovered Hofstadter's butterfly win ?
Context: Per Petterson (born 18 July 1952 in Oslo) is a Norwegian novelist.  His debut book was "Aske i munnen, sand i skoa" (1987), a collection of short stories.  He has since published a number of novels to good reviews.  "To Siberia" (1996), set in the Second World War, was published in English in 1998 and nominated for the Nordic Council's Literature Prize.  "I kjølvannet", translated as "In the Wake" (2002), is a young man's story of losing his family in the "Scandinavian Star" ferry disaster in 1990 (Petterson himself lost his mother, father, younger brother and a niece in the disaster); it won the Brage Prize for 2000.  His 2008 novel "Jeg forbanner tidens elv" ("I Curse the River of Time") won The Nordic Council's Literature Prize for 2009, with an English translation published in 2010. In triangle geometry, a Hofstadter point is a special point associated with every plane triangle.  In fact there are several Hofstadter points associated with a triangle.  All of them are triangle centers. Two of them, the Hofstadter zero-point and Hofstadter one-point, are particularly interesting.  They are two transcendental triangle centers.  Hofstadter zero-point is the center designated as X(360) and the Hofstafter one-point is the center denoted as X(359) in Clark Kimberling's Encyclopedia of Triangle Centers.  The Hofstadter zero-point was discovered by Douglas Hofstadter in 1992. Lee Yeong-gwang (born 1965) is a South Korean poet and educator.  He was born in 1965 in Gyeongsangbuk-do.  He graduated from Korea University’s graduate school.  He has won the 8th Nojak Literature Prize in 2008, the 11th Jihoon Prize (Literature Prize) in 2011, and the 11th Midang Literary Award in the same year.  He is a poet who depicts life’s sadness in elaborate language, but does not dwell in despair, and lyrically shows the image of gaining the will for starting life again.  He has been a creative writing professor at Korea University since 2015. Thomas Mann Prize ("German": Thomas-Mann-Preis) is a literary prize of Germany.  In full the title is "Thomas Mann Prize of the city of Lübeck and the Bavarian Academy of Fine Arts".  It is given in alternate years in Lübeck and in Munich.  The award is the product of a merger of two prizes in 2010, the Thomas Mann Preis der Hansestadt Lübeck (Thomas Mann Prize Lübeck) and the Großen Literaturpreis (Great Literature Prize) of the Bavarian Academy of Fine Arts.  The Thomas Mann Prize Lübeck was first awarded in 1975; the Great Literature Prize was first awarded in 1950. Douglas Richard Hofstadter (born February 15, 1945) is an American professor of cognitive science whose research focuses on the sense of "I" (sense of self in relation to the external world), consciousness, analogy-making, artistic creation, literary translation, and discovery in mathematics and physics.  Hofstadter's book "Gödel, Escher, Bach: An Eternal Golden Braid", first published in 1979, won both the Pulitzer Prize for general non-fiction Helsingin Sanomat Literature Prize (Finnish: Helsingin Sanomain kirjallisuuspalkinto) is a Finnish literary award for a debut novel in the Finnish language.  It was founded in 1964.  From 1964-1994 it operated under the name J. H. Erkko Award (Finnish: J. H. Erkon palkinto).  Beginning in 1995 the name changed to Helsingin Sanomat Literature Prize.  The prize is valued at . Sólrún Michelsen (born Midjord in Tórshavn in 1948), grew up in Argir, is a Faroese writer and poet.  She received the Barnamentanarheiðursløn Tórshavnar býráðs (Tórshavn Council's Children's Book Prize) in 2002 and the Faroese Literature Prize in 2008.  In 2004 she was nominated for the West Nordic Council's Children and Youth Literature Prize for the poem collection "Loppugras".  In 2015 she was Nominated the Nordic Literature Prize for the novel "Hinumegin er mars". Lee Jae Moo (born 1958) is a South Korean poet and educator.  He was born in Buyeo, Chungcheongnam-do.  He graduated from Hannam University in Korean literature.  He started writing by publishing works on Salmui Munhak, and Literature and Society.  He is a lyrical poet that examines objects and inner sides with a subtle but solid voice.  He won the 2nd Nango (Kim Satgat) Literature Prize, the Pyeonwoon Literature Prize, the 1st Yun Dongju Poetry Prize, and the Hannam Literature Prize.  Currently he is working as a professor at Seoul Digital University. Hellmut G. Haasis (born 7 January 1942) is a German historian, author, and broadcaster.  He is particularly known for his biographies of Georg Elser who attempted to assassinate Adolf Hitler in 1939; Reinhard Heydrich who was one of the main architects of the Holocaust; and Joseph Süß Oppenheimer who was executed in 1738 and in 1940 was the subject of a notorious Nazi anti-semitic propaganda film, "Jud Süß".  Haasis was born in Mühlacker, a town in the Swabia region of Germany, and has written two novels in Swabian dialect as well as a collection of poetry.  He is the recipient of the Thaddäus Troll Literature Prize, the Schubart Literature Prize, and the Civis Media Prize. In physics, Hofstadter's butterfly is a mathematical object describing the theorised behaviour of electrons in a magnetic field.  It was discovered in 1976 by Douglas Hofstadter, who later abandoned physics research and became notable as a cognitive scientist and author.  It takes its name from its visual resemblance to a butterfly.  It is a fractal structure and as such it shows self-similarity, meaning that small fragments of the structure contain a (distorted) copy of the entire structure.  It is one of the rare non-random fractal structures discovered in physics, along with KAM theorem.
Answer: the Pulitzer Prize