Events

Born on April 17th:

Arthur Moritz SCHOENFLIES (1853 – 27.5.1928), a German mathematician, known for his work on the application of group theory in crystallography (Schönflis symbols), and for his work in the field of topology. He also engaged in research in the field of set theory, kinematics and projective geometry. He refined Jordan's theorem, namely, he proved that a bounded domain cut by a simple closed curve from a plane is homeomorphic to a disk.

Karl Wilhelm OSEEN (1879 - 11.11.1944), a Swedish theoretical physicist. The Director of the Nobel Institute for Theoretical Physics in Stockholm. Formulated the basics of the theory of elasticity of liquid crystals. An author of the only selection in the Nobel Committee nomination Albert Einstein for the Nobel Prize in Physics.

Haim Aronovich CHERCHES (1916 - 10.9.1992), a Belarusian Soviet organic chemist. The author of the "Laboratory Workshop on General Chemistry: for students of engineering and construction specialties," works on compounds of rare-earth metals. Research interests: chemistry of natural compounds and rare earth metals; methods for isolating and identifying resin acids and other terpenoids from local conifer balsams; methods of obtaining ceric salts of aliphatic acids, rare earth silicates.

David Efimovich GERSHANOVICH (1920 - 29.1.2007), a Russian geologist and mineralogist, Ph.D. He made a great contribution to the study of the relief of the seabed and the ground in the commercial areas of the World Ocean. Of great importance is his study of the underwater margins of the continents, in areas of sharp variability of environmental conditions. These studies contributed to the formation of many sections of marine geology in the USSR. He actively developed expeditionary studies of the World Ocean, organizing and participating in expeditions in the Bering Sea, the Gulf of Alaska, the North Atlantic, the Antarctic and the South-Eastern Pacific.

Lubomir ROMANKIV (1931), a leading IBM computer scientist. He is the inventor of the processes of creating inductive and magnetoresistive heads for recording information, which made possible the emergence of hard drives and personal computers. Much of his work is related to the study of magnetic materials, reflective displays and copper plating processes. The Chemistry Engineer (1955). the Doctor of Metallurgy and Materials Science. For significant achievements he received the Perkin Medal - the highest award of the Society of Chemical Industry of the USA (1993). The current member of the Academy of Engineering Sciences IBM and the Academy of Engineering Sciences of Ukraine.

Alexander Nikolaevich ZEMLYAKOV (1950 - 1.1.2005), a Soviet and Russian mathematician-teacher, an author of educational literature. He wrote a large number of books and articles in mathematics. His unique methods allowed his students to easily pass exams in mathematics at leading universities of the country.

Grigorii Volfovich CHUDNOVSKY (1952), a mathematician, the specialist in the field of number theory. Contributed to the theory of transcendental numbers and the study of gamma functions. Together with brother David CHUDNOVSKY, they are known for numerous records in calculating the number of Pi, which were partially calculated on a home, self-assembled supercomputer called “M-zero”. Calculated 2 billion 260 million characters of pi (1991).

 

 

 

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