Dvo K In America

Before Antonín Dvorák's New World Symphony became one of the most universally beloved pieces of classical music, it exposed the deep wounds of racism at the dawn of the Jim Crow era while serving as a flashpoint in broader debates about the American ideals of freedom and equality. Drawing from a diverse array of historical voices, author Douglas W. Shadle's richly textured account of the symphony's 1893 premiere shows that even the classical concert hall could not remain insulated from the country's racial politics.

Contains the material formerly published in even-numbered issues of the Bulletin of the American Mathematical Society.

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The authors develop a theory for the existence of perfect matchings in hypergraphs under quite general conditions. Informally speaking, the obstructions to perfect matchings are geometric, and are of two distinct types: `space barriers' from convex geometry, and `divisibility barriers' from arithmetic lattice-based constructions. To formulate precise results, they introduce the setting of simplicial complexes with minimum degree sequences, which is a generalisation of the usual minimum degree condition. They determine the essentially best possible minimum degree sequence for finding an almost perfect matching. Furthermore, their main result establishes the stability property: under the same degree assumption, if there is no perfect matching then there must be a space or divisibility barrier. This allows the use of the stability method in proving exact results. Besides recovering previous results, the authors apply our theory to the solution of two open problems on hypergraph packings: the minimum degree threshold for packing tetrahedra in -graphs, and Fischer's conjecture on a multipartite form of the Hajnal-Szemerédi Theorem. Here they prove the exact result for tetrahedra and the asymptotic result for Fischer's conjecture; since the exact result for the latter is technical they defer it to a subsequent paper.

In Russian Colonization of Alaska, Andrei Val’terovich Grinëv examines the sociohistorical origins of the former Russian colonies in Alaska, or “Russian America,” between 1741 and 1799. Beginning with the Second Kamchatka Expedition of Vitus Ivanovich Bering and Aleksei Ilyich Chirikov’s discovery of Alaska and the Aleutian Islands and ending with the formation of the Russian-American Company’s monopoly of the Russian colonial endeavor in the Americas, Russian Colonization of Alaska offers a definitive, revisionist examination of Tsarist Russia’s foray into the imperial contest in North America. Russian Colonization of Alaska is the first comprehensive study to analyze the origin and evolution of Russian colonization based on research into political economy, history, and ethnography. Grinёv’s study elaborates the social, political, spiritual, ideological, personal, and psychological aspects of Russian America. He also accounts for the idiosyncrasies of the natural environment, competition from other North American empires, Alaska Natives, and individual colonial diplomats. The colonization of Alaska, rather than being simply a continuation of the colonization of Siberia by Russians, was instead part of overarching Russian and global history.