Elling Holst

Elling Bolt Holst (19 de julio de 1849 – 2 de septiembre de 1915) fue un matemático , biógrafo y escritor de literatura infantil noruego .

Holst nació en Drammen , Noruega. Era hijo del librero Adolph Theodor Holst y de Amalie Fredrikke Bergh. ^{[ 1 ]} Era nieto del comerciante y político, miembro del Storting , Elling Mathias Holst (1785–1852). ^{[ 2 ] [ 3 ]}

Holst se matriculó como estudiante en la Universidad de Christiania (ahora Universidad de Oslo), su asesor doctoral fue Sophus Lie , ^{[ 4 ]} y se graduó como cand.real. en 1874. Continuó sus estudios en Alemania , donde Felix Klein estuvo entre sus profesores. Fue nombrado profesor en Aars og Voss skole en Christiania (ahora Oslo). Su tesis Et par syntetiske Methoder, især til Brug ved Studiet af metriske Egenskaber se terminó en 1882. ^{[ 5 ] [ 1 ]}

Holst impartió clases de matemáticas en la Universidad de Oslo desde 1894. Entre sus otras obras matemáticas se encuentran su contribución de 1878, Om Poncelets betydning for geometrien , y varios libros de texto. Escribió biografías de varios matemáticos, entre ellos Cato Maximilian Guldberg , Carl Anton Bjerknes , Sophus Lie y Niels Henrik Abel . ^{[ 1 ] [ 6 ]}

Holst is particularly known for his children's books Norsk Billedbog for Børn, three collections from 1888, 1890 and 1903 (with illustrations by Eivind Nielsen).^[1] The first of these books has been called Norway's first national picture book (although a picture abc had been published previously, in 1876). ^[2] Holst started collecting traditional poems for children, several of which were first published in Norwegian writing in these books. These poems, such as "Ride, ride ranke", "Bake kake søte", "Kjerringa med staven", "Hoppe! sa gåsa" and "Du og jeg og vi to", have had a constant popularity over many years, and Norsk Billedbog for Børn has been reissued several times.^[1] Also contemporary poetry was included in the books, such as some poems by Henrik Wergeland, "Kom bukken til gutten" by Bjørnstjerne Bjørnson, and "Blaamand" by Aasmund Olavsson Vinje.^[2]

Among his other children's books are Julegodter for Børn from 1892, and A.B.C. for Skole og Hjem from 1893 (together with Anna Rogstad).^[1] He published the picture book Fra Sæteren in 1899, with illustrations by Lisbeth Bergh.^[2]

He was married twice, first to Inger Skavlan (1852–99), and was a brother-in-law of Olaf Skavlan, Sigvald Skavlan, Aage Skavlan and Harald Skavlan. After her death, he married Marie Michelet (1872–1960), sister of Simon Michelet, in 1900.^[1]

He was decorated Knight, First Class of the Order of St. Olav in 1902.^[7]