Gösta Mittag-Leffler and Vito Volterra : 40 Years of Correspondence

The present book contains the voluminous correspondence exchanged between the Swedish mathematician Gösta Mittag-Leffler and his younger Italian colleague Vito Volterra spanning a period of almost forty years at the end of the 19th and beginning of the 20th centuries. The relationship between the two men is remarkable for both personal and scientific reasons. Mittag-Leffler met Volterra for the first time as a brilliant young student of Ulisse Dini in Pisa. He was soon captivated by the creativity and the skills of the young man, and eventually became his mentor. Being himself at the center of a major scientific network, Mittag-Leffler introduced Volterra to the major mathematicians of the time, especially the Germans (Weierstrass, Klein, Cantor...) and French (Darboux, Jordan...). In a few years, Volterra became the most prominent Italian mathematician and forged his own network of scientists all over Europe, and even in the United States which he was one of the first major European mathematicians to visit. Despite their difference in age, both men developed a deep and faithful friendship and their letters reflect the variety of themes of their exchanges. Of course, mathematics was the most prominent, and both men often used the letters as a first draft of their ideas and the addressee as a first judge of their soundness. Besides mathematics, they also touched upon many aspects of both private and public life: matrimony, children, holidays, politics and so on. This vast set of letters affords the reader a general overview of mathematical life at the turn of the 19th century and an appreciation of the European intellectual spirit which came to an end, or at least suffered a drastic turn, when the Great War broke out. Volterra and Mittag-Leffler’s exchanges illustrate how general analysis, especially functional analysis, gained a dramatic momentum during those years, and how Volterra became one of the major leaders of the topic, opening the path for several fundamental developments over the following decades. Through the letters one can follow the institutional career and scientific activity of both Volterra and Mittag-Leffler who shared many details about their situation. The four editors are all specialists in the history of mathematics of the considered period. An extensive general introduction to the correspondence explains the context and the conditions in which it was developed. Moreover, the original letters are annotated with a large number of footnotes, which provide a broader cultural picture from these captivating documents. Keywords: Mittag-Leffler, Volterra, correspondence, mathematics, history of mathematics Preface Acknowledgments I Introduction to the correspondence Presentation of the correspondence Gösta Mittag-Leffler before his first meeting with Volterra The first meeting between Mittag-Leffler and Volterra Volterra in Dini's footsteps Foundation of the journal Acta Mathematica From Dini to Betti, 1882–1887 Functional analysis The second meeting. Guccia's role and Volterra's international débuts 1888–1902: Abel's manuscripts 1891: Sonya Kovalevskaya's error 1896: Inversion of integrals 1898: Mittag-Leffler's star and its prehistory Mittag-Leffler's engagement for the Nobel Prize in Physics 1906: Volterra's lectures in Stockholm 1910: Integro-differential equations World War I and its consequences, 1914–1920 II Letters Mittag-Leffler to Volterra Volterra to Mittag-Leffler Mittag-Leffler to VolterraTelegram. Volterra to Mittag-Leffler Volterra to Mittag-Leffler Mittag-Leffler to VolterraPostcard. Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Mittag-Leffler to VolterraPostcard. Mittag-Leffler to VolterraTelegram. Volterra to Mittag-LefflerTelegram. Angelica Almagià to VolterraTelegram. Volterra to Mittag-LefflerPostcard. Volterra to Betti Volterra to Betti Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Volterra to Mittag-Leffler Mittag-Leffler to Volterra Volterra to Mittag-Leffler Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Mittag-Leffler to Volterra Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Mittag-Leffler to Volterra Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Mittag-Leffler to VolterraThere is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Mittag-Leffler to VolterraThere is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Volterra to Betti Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Mittag-Leffler to VolterraThere is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Mittag-Leffler to Volterra Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Mittag-Leffler to VolterraPostcard. Volterra to Mittag-LefflerPostcard. Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Mittag-Leffler to VolterraThere is a corresponding draft of this letter in Mittag-Leffler's archive. Mittag-Leffler to Volterra Volterra to Mittag-LefflerThere are two drafts of this letter in Volterra's archive (the first one on 21 June, the second on 30 June). This may be an indication of the special care taken by Volterra to provide an exact correction to Kovalevskaya's research. Both this letter and the one following are kept at the Royal Library in Stockholm. Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Mittag-Leffler to VolterraTelegram. Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Mittag-Leffler to VolterraPostcard. Mittag-Leffler to VolterraPostcard. Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Volterra to Mittag-Leffler Mittag-Leffler to Volterra Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Mittag-Leffler to VolterraTelegram. Mittag-Leffler to VolterraTelegram. Volterra to Mittag-LefflerTelegram. Volterra to Mittag-LefflerPostcard. Mittag-Leffler to VolterraTelegram. Volterra to Mittag-LefflerTelegram. Mittag-Leffler to VolterraTelegram. Volterra to Mittag-LefflerVolterra's archive contains two drafts of the present letter: the first one on 2 August and the second on 6 August. Volterra to Mittag-LefflerPostcard. Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Mittag-Leffler to Volterra Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Mittag-Leffler to VolterraTypewritten except for the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. The letter bears the wrong year, 1886. Volterra to Mittag-LefflerThere is probably a mistake by Volterra about the date on the draft of this not-sent letter (it has no counterpart in Mittag-Leffler's archive): the right date was certainly the 12th as in the following telegram. Volterra probably preferred to send a telegram in order to inform Mittag-Leffler more quickly. Volterra to Mittag-LefflerTelegram. Mittag-Leffler to VolterraTelegram. Mittag-Leffler to VolterraTypewritten, except for the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-LefflerPostcard. Volterra to Mittag-LefflerThere are two drafts of this letter in Volterra's archive. Mittag-Leffler to VolterraTypewritten except for the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Mittag-Leffler to VolterraTypewritten except for the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Volterra to Mittag-LefflerDraft. Volterra to Mittag-Leffler Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Volterra to Mittag-LefflerCard. Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Mittag-Leffler to Volterra Volterra to Mittag-LefflerDraft. Brioschi to Volterra Volterra to Brioschi Mittag-Leffler to VolterraTelegram. There is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-LefflerVolterra's archive contains a draft of the present telegram. Mittag-Leffler to VolterraPostcard. Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Mittag-Leffler to Volterra Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Mittag-Leffler to Volterra Mittag-Leffler to Volterra Volterra to Mittag-LefflerThere are two drafts of this letter in Volterra's archive. Mittag-Leffler to VolterraPostcard. Volterra to Mittag-LefflerThere are two corresponding drafts of this letter in Volterra's archive. Volterra to Mittag-LefflerTelegram. Mittag-Leffler to VolterraTelegram. Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Mittag-Leffler to Volterra Mittag-Leffler to VolterraTelegram. Volterra to Mittag-LefflerTelegram. Volterra to Mittag-LefflerPostcard. Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Mittag-Leffler to VolterraPostcard. Volterra to Mittag-LefflerPostcard. Mittag-Leffler to Volterra Volterra to Mittag-LefflerPostcard. There is a draft in Volterra's archive. Volterra to Mittag-Leffler Mittag-Leffler to Volterra Volterra to Mittag-LefflerThere is an incomplete (second part only) draft of this letter in Volterra's archive. Mittag-Leffler to Volterra Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Volterra to Mittag-LefflerTelegram. There is a draft in Volterra's archive. Mittag-Leffler to VolterraTelegram. Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Mittag-Leffler to VolterraTypewritten except for the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Mittag-Leffler to VolterraTelegram. Mittag-Leffler to Volterra Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Mittag-Leffler to VolterraTypewritten except for the signature and the postscript. There is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-Leffler Mittag-Leffler to VolterraThere is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-Leffler Mittag-Leffler to VolterraTypewritten except for the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. Mittag-Leffler to Volterra Volterra to Mittag-Leffler Mittag-Leffler to VolterraTypewritten except for the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-Leffler Mittag-Leffler to VolterraTypewritten except for the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. Mittag-Leffler to VolterraTypewritten except for the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-Leffler Mittag-Leffler to Volterra Volterra to Mittag-Leffler Mittag-Leffler to VolterraTypewritten except for the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-Leffler Mittag-Leffler to VolterraTypewritten except for the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. Mittag-Leffler to VolterraTypewritten except for the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. Mittag-Leffler to VolterraTypewritten except for the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Volterra to Mittag-Leffler Volterra to Mittag-LefflerTypewritten except for the greeting and the signature. Mittag-Leffler to VolterraTypewritten except for the signature. Mittag-Leffler to VolterraTypewritten except for the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-Leffler Volterra to Mittag-Leffler Volterra to Mittag-Leffler Volterra to Mittag-Leffler Volterra to Mittag-Leffler Mittag-Leffler to Volterra Volterra to Mittag-Leffler Mittag-Leffler to Volterra Volterra to Mittag-LefflerVisiting card without date, but clearly Monday, 4 January 1904, in the morning. The document is kept in Volterra's archive as Mittag-Leffler sent the card back with his handwritten answer. Mittag-Leffler to VolterraVisiting card without date, but clearly Monday, 4 January 1904, in the afternoon. Volterra to Mittag-Leffler Mittag-Leffler to VolterraTypewritten except for the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-Leffler Mittag-Leffler to VolterraTypewritten except for the signature. Black-edged paper. There is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-Leffler Mittag-Leffler to VolterraTypewritten except for the signature. Black-edged paper. There is a corresponding draft of this letter in Mittag-Leffler's archive. Mittag-Leffler to VolterraDraft. Mittag-Leffler to VolterraTelegram. There is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-LefflerTelegram. Mittag-Leffler to VolterraBlack-edged paper. There is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-Leffler Mittag-Leffler to VolterraTypewritten except for the signature. Black-edged paper. There is a corresponding draft of this letter in Mittag-Leffler's archive. Mittag-Leffler to Volterra There are two drafts of the present letter in Mittag-Leffler's archive, one is handwritten and the second is typed. The latter does not contain the mathematical expression FV() (x), which we copied from the manuscript draft. Mittag-Leffler to VolterraTypewritten except for the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-Leffler Mittag-Leffler to VolterraTypewritten except for the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. Mittag-Leffler to VolterraTypewritten except for the signature. Volterra to Mittag-Leffler Mittag-Leffler to VolterraTypewritten except for the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. Mittag-Leffler to Volterra Volterra to Mittag-Leffler Volterra to Mittag-Leffler Volterra to Mittag-Leffler Mittag-Leffler to Volterra Volterra to Mittag-LefflerTelegram. Volterra to Mittag-Leffler Mittag-Leffler to VolterraTypewritten except for the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-Leffler Volterra to Mittag-Leffler Mittag-Leffler to VolterraTypewritten except for the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. Mittag-Leffler to VolterraDraft. There are two drafts of the present letter in Mittag-Leffler's archive, one is handwritten and the second is typed. Volterra to Mittag-LefflerTelegram. Mittag-Leffler to VolterraTelegram. Volterra to Mittag-Leffler Mittag-Leffler to VolterraThere is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-Leffler Mittag-Leffler to VolterraTypewritten except for the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-Leffler Mittag-Leffler to VolterraTypewritten except for the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-LefflerTelegram. Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Mittag-Leffler to VolterraTypewritten except for the signature and the postscript. There is a corresponding draft of this letter in Mittag-Leffler's archive. Mittag-Leffler to VolterraTypewritten except for the signature. Volterra to Mittag-LefflerTelegram. There is a minute in Volterra's archive. Volterra to Mittag-Leffler Volterra to the President of the Senate Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Mittag-Leffler to VolterraTelegram. There is a draft of this telegram in Mittag-Leffler's archive. Volterra to Mittag-LefflerTelegram. Volterra to Mittag-LefflerTelegram. Volterra to Mittag-LefflerTelegram. Mittag-Leffler to VolterraTelegram. Mittag-Leffler to VolterraTypewritten except for the signature. Volterra to Mittag-Leffler Volterra to Mittag-LefflerTelegram. Mittag-Leffler to VolterraThere is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-LefflerTelegram. Volterra to Mittag-Leffler Mittag-Leffler to VolterraTypewritten except for some final lines and the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. Mittag-Leffler to VolterraTypewritten except for the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. Mittag-Leffler to VolterraTypewritten except for the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-LefflerTelegram. Volterra to Mittag-LefflerTelegram. Mittag-Leffler to Volterra Volterra to Mittag-Leffler Mittag-Leffler to VolterraTypewritten except for the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-Leffler Mittag-Leffler to VolterraTypewritten except for the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. Mittag-Leffler to VolterraTypewritten except for the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-Leffler Volterra to Mittag-LefflerThere are two typewritten copies of this letter. Mittag-Leffler to VolterraTypewritten except for the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-Leffler Université de Pavia Camillo Golgi Volterra to Mittag-Leffler Maria Liljeblad to Vito Volterra Volterra to Mittag-LefflerTelegram. Volterra to Mittag-Leffler Mittag-Leffler to VolterraTypewritten except for the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. There is another draft of a telegram dated 22 March 1907, in which Mittag-Leffler thanked Volterra and wrote him that he could not make so long a journey. Volterra to Mittag-Leffler Mittag-Leffler to Volterra Volterra to Mittag-Leffler Mittag-Leffler to VolterraThere is a corresponding draft of this letter in Mittag-Leffler's archive. Mittag-Leffler to Volterra Volterra to Mittag-Leffler Mittag-Leffler to VolterraTypewritten except for the signature. Only the draft of this letter exists; it is contained in Mittag-Leffler's archive. Mittag-Leffler to VolterraTypewritten except for the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-Leffler Volterra to Mittag-LefflerTelegram. Mittag-Leffler to VolterraTelegram. There is a draft in Mittag-Leffler's archive. Volterra to Mittag-LefflerTelegram. Volterra to Mittag-Leffler Mittag-Leffler to VolterraTypewritten except for the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. Mittag-Leffler to VolterraTypewritten except for the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-Leffler Volterra to Mittag-LefflerTelegram. Volterra to Mittag-Leffler Mittag-Leffler to VolterraTypewritten except for the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-LefflerTelegram. Volterra to Mittag-Leffler Volterra to Maria LiljebladPostcard. Mittag-Leffler to VolterraTypewritten except for the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Volterra to Mittag-Leffler Volterra to Mittag-Leffler Volterra to Mittag-Leffler Volterra to Mittag-Leffler Mittag-Leffler to VolterraTypewritten except for the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-Leffler Volterra to Mittag-LefflerTelegram. Mittag-Leffler to VolterraThere is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-Leffler Mittag-Leffler to VolterraThere are two drafts of this letter in Mittag-Leffler's archive. Mittag-Leffler to VolterraTypewritten except for the signature. A draft of this letter is in Mittag-Leffler's archive. Volterra to Mittag-Leffler Mittag-Leffler to VolterraThere is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-Leffler Mittag-Leffler to VolterraTypewritten except for the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-Leffler Mittag-Leffler to VolterraTypewritten except for the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-Leffler Mittag-Leffler to VolterraTypewritten except for the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-Leffler Volterra to Mittag-Leffler Mittag-Leffler to VolterraTypewritten except for the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Mittag-Leffler to VolterraThere is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Volterra to Mittag-LefflerThere is a corresponding draft of this letter in Volterra's archive. Volterra to Mittag-LefflerTypewritten. Mittag-Leffler to VolterraTypewritten except for the signature. There is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-LefflerTelegram. Mittag-Leffler to VolterraThere is a corresponding draft of this letter in Mittag-Leffler's archive. Mittag-Leffler to VolterraTelegram. There is a draft of this telegram in Mittag-Leffler's archive. Volterra to Mittag-LefflerTelegram. There is a draft of this telegram in Volterra's archive. Volterra to Mittag-Leffler Mittag-Leffler to VolterraTelegram. Volterra to Mittag-Leffler Volterra to Mittag-Leffler Mittag-Leffler to VolterraTypewritten except for the signature. A draft of this letter is in Mittag-Leffler's archive. Volterra to Mittag-Leffler Mittag-Leffler to VolterraTypewritten except for the signature. The draft of this letter is in Mittag-Leffler's archive. Volterra to Mittag-LefflerTelegram. There is a draft in Volterra's archive. Mittag-Leffler to VolterraThere is a draft of this telegram in Mittag-Leffler's archive. Mittag-Leffler to VolterraPostcard. Mittag-Leffler's Villa, Djursholm. Mittag-Leffler to VolterraThere is a corresponding draft of this letter in Mittag-Leffler's archive. Minuta Mittag-Leffler to VolterraDraft. Volterra to Mittag-Leffler Mittag-Leffler to VolterraTypewritten. There is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-Leffler Mittag-Leffler to VolterraTypewritten. There is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-LefflerTypewritten. Mittag-Leffler to VolterraTypewritten. The draft of this letter is in Mittag-Leffler's archive. Mittag-Leffler to VolterraTelegram. Volterra to Mittag-LefflerTelegram. Mittag-Leffler to VolterraThere is a corresponding draft of this letter in Mittag-Leffler's archive. Mittag-Leffler to VolterraThere is a corresponding draft of this letter in Mittag-Leffler's archive. Annexed to the previous letter Volterra to Mittag-LefflerTypewritten. Mittag-Leffler to VolterraTypewritten. The draft of this letter is in Mittag-Leffler's archive. Volterra to Mittag-LefflerTypewritten. Annexed to the previous letter Volterra to Mittag-LefflerTypewritten. Mittag-Leffler to VolterraTypewritten. A draft of this letter is in Mittag-Leffler's archive. Volterra to Mittag-LefflerTelegram. Mittag-Leffler to Volterra Mittag-Leffler to VolterraTypewritten. A draft of this letter is in Mittag-Leffler's archive. Mittag-Leffler to VolterraTypewritten. There is a corresponding draft of this letter in Mittag-Leffler's archive. Annexed to the previous letter Mittag-Leffler to VolterraTypewritten. There is a corresponding draft of this letter in Mittag-Leffler's archive. This letter is written in German as, since World War I broke out, the letter had to pass the censorship when it crossed Germany. Volterra to Mittag-LefflerThere is a minute in Italian and a translation in German by Volterra's daughter Luisa in Volterra's archive. The version sent to Mittag-Leffler was in French. Mittag-Leffler to VolterraIllustrated postcard. Mittag-Leffler's villa in Djursholm. Volterra to Mittag-LefflerIllustrated postcard. Villino Volterra, Ariccia. Mittag-Leffler to VolterraIllustrated postcard. Mittag-Leffler's villa in Tällberg. Mittag-Leffler to VolterraThere is a corresponding draft of this letter in Mittag-Leffler's archive. Mittag-Leffler to VolterraPostcard. There is a corresponding draft of this letter in Mittag-Leffler's archive. Mittag-Leffler to Volterra Volterra to Mittag-LefflerBlack-edged paper; see footnote 780. The draft of this letter, dated 9 May 1916, is in Volterra's archive. Volterra to Mittag-LefflerDraft. Mittag-Leffler to VolterraTelegram. There is a corresponding draft of this letter in Mittag-Leffler's archive. Mittag-Leffler to VolterraIllustrated postcard. The photo shows Mittag-Leffler's villa in Djursholm. Mittag-Leffler to VolterraIllustrated postcard. The photo shows Mittag-Leffler's wood villa in Tällberg (see Letter 273). Volterra to Mittag-LefflerTypewritten. There is a corresponding draft of this letter in Volterra's archive. Mittag-Leffler to VolterraTypewritten. There is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-Leffler Mittag-Leffler to Volterra Mittag-Leffler to VolterraPostcard. Volterra to Mittag-LefflerTypewritten. There is a corresponding draft of this letter in Volterra's archive. Mittag-Leffler to VolterraTypewritten. The draft of this letter is in the Mittag-Leffler Institute. Mittag-Leffler to VolterraTypewritten. There is a corresponding draft of this letter in Mittag-Leffler's archive. Volterra to Mittag-Leffler Volterra to Mittag-LefflerTypewritten draft. Mittag-Leffler to VolterraTypewritten. There is a corresponding draft of this letter in Mittag-Leffler's archive. Mittag-Leffler to VolterraVisiting card. Black-edged paper. Volterra to Mittag-LefflerTelegram. Volterra to Mittag-LefflerTypewritten. Åvskrift. Originalet sänt till Överdirektör Gavelin, Geologiska Byrå n, Stockholm den maj 1921. Salhén to VolterraDraft. Volterra to Mittag-Leffler Mittag-Leffler to VolterraTypewritten. The draft is in Mittag-Leffler's archive. Volterra to Mittag-LefflerTypewritten. There is a corresponding draft of this letter in Volterra's archive. Mittag-Leffler to VolterraTypewritten. Volterra to Mittag-Leffler Mittag-Leffler to VolterraTypewritten. Volterra to Mittag-LefflerTypewritten. Volterra to Mittag-LefflerTelegram. Volterra to Mittag-LefflerTypewritten. Mittag-Leffler to VolterraTypewritten. Volterra to Mittag-Leffler Mittag-Leffler to VolterraTypewritten. Mittag-Leffler to VolterraTypewritten. Volterra to Mittag-LefflerTypewritten. Virginia and Vito Volterra to Mittag-Leffler Mittag-Leffler to VolterraTypewritten. Mittag-Leffler to VolterraTypewritten. Volterra to Mittag-LefflerTypewritten. There is a corresponding draft of this letter in Volterra's archive. Mittag-Leffler to VolterraTypewritten. Mittag-Leffler to VolterraTypewritten. This is the final letter from Mittag-Leffler kept in Volterra's archive. Mittag-Leffler died less than six months later on 7 July 1927. Bibliography Index "The relationship between the two men is remarkable for both personal and scientific reasons. Mittag-Leffler met Volterra for the first time when Volterra was a brilliant young student of Ulisse Dini in Pisa. He was soon captivated by the creativity and the skills of the young man and eventually became his mentor. Mittag-Leffler, who was at the center of a major scientific network, introduced Volterra to the major mathematicians of that time. In a few years, Volterra became the most prominent Italian mathematician and forged his own network of scientists all over Europe and even in the United States. Volterra was one of the first major European mathematicians to visit the U.S. Despite their difference in age, both men developed a deep and faithful friendship, and their letters reflect the variety of themes of their exchanges. Of course, mathematics was the most prominent, and both men often used the letters as a first draft of their ideas and the addressee as a first judge of their soundness. Besides mathematics, they also touched upon many aspects of both private and public life: matrimony, children, holidays, politics, and so on. This vast set of letters affords the reader a general overview of mathematical life at the turn of the 19th century and an appreciation of the European intellectual spirit which came to an end, or at least suffered a drastic turn, when the Great War broke out. Volterra and Mittag-Leffler's exchanges illustrate how general analysis, especially functional analysis, gained a dramatic momentum during those years, and how Volterra became one of the major leaders of the field, opening the path for several fundamental developments over the following decades. Through the letters, the reader can follow the institutional career and scientific activity of both Volterra and Mittag-Leffler, who shared many details about their lives."--Publisher