Prime numbers can be divided only by themselves and one. “Our campus is honored and fortunate to have had him join our math faculty last year as an outstanding teacher of both graduate and undergraduate courses.” “Even after receiving several of the world’s top awards in mathematics over the past few years, Professor Zhang has remained extremely humble and low-key,” Yang added. “The paper is so beautiful that some mathematicians have described the experience of reading it as similar to enjoying music and art. “Professor Zhang’s breakthrough paper, ‘Bounded Gaps Between Primes,’ has solved a pure mathematics problem attempted by mathematicians for more than 150 years,” said UCSB Chancellor Henry T. So began his ascent to mathematics renown. In 2013, Zhang, a number theorist, submitted a proof to the “Annals of Mathematics” that established the first finite bound on gaps between prime numbers. The institution’s primary mission is to promote scientific and technological progress in China by recognizing and rewarding successful Chinese scientists and scholars. Zhang’s most recent accolade is the Qiu Shi Outstanding Scientist Award, which he recently received in Beijing from the Qiu Shi Science & Technologies Foundation. His seminal work on the Twin Prime Conjecture made him famous in the field, earning him a host of prizes, including a MacArthur Fellowship. Acta 53, 2465–2501 (1989).Yitang Zhang may not be a household name, but in the world of mathematics, the UC Santa Barbara professor is somewhat of a celebrity. Tracers in the Sea 690 (Lamont-Doherty Geol. California Scripps Institution of Oceanography Ref. ODP Leg 146, Part 2 (1994).ĬalCOFI Data Report. The Sea Off Southern California: A Modern Habitat of Petroleum (Wiley, New York, 1962). These climate-driven variations in ocean circulation appear to be synchronous with the main ocean-climate fluctuations in the North Atlantic region 1-6, suggesting that a tight coupling mechanism operates between the two basins.īoyle, E. Conversely, older bottom waters are associated with the warmer intervals and were derived from more distal sources. Relatively young bottom waters are associated with the cooler intervals and are considered to reflect high proportions of intermediate waters derived from proximal sources. Age differences between coexisting benthic and planktonic foraminifers indicate climate-related changes in the age and source-and, hence, oxygen content-of basin bottom waters. The sequence shows oscillations of the benthic environment between low-oxygen conditions (laminated sediments) during periods of warm climate, and higher-oxygen conditions (non-laminated, bioturbated sediments) during cool intervals. Here we present high-resolution palaeoclimate and palaeoceanographic records from a 20,000-year sedimentary sequence from the Santa Barbara basin, on the eastern margin of the North Pacific Ocean. The extent to which such interactions have occurred in other ocean basins, and any associated teleconnec-tions between basins, is poorly understood. MUCH of the evidence for climate-driven fluctuations in ocean circulation during the past 20,000 years has come from studies of the North Atlantic region 1-6.
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