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Sigma Pi Sigma

Physics Today, 1963
The seventh national convention of Sigma Pi Sigma, national physics honor society, held October 21–24 at the University of Kansas, heard its outgoing president, Stanley S. Ballard, head of the Physics Department at the University of Florida, suggest that the size of the Society could be doubled during the next decade. Dr.
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Sigma Pi Sigma

Physics Today, 1951
During 1951, Sigma Pi Sigma, physics honor society which recently became an affiliated organization of the American Institute of Physics, has installed five new chapters into the society, bringing the chapter roll to eighty-one institutions.
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Sigma Pi Sigma

Physics Today, 1965
During the annual meeting of the executive committee of Sigma Pi Sigma at Oak Ridge, a program of expansion was authorized which will include chartering of several new chapters, both in the latter part of 1964 and the spring of 1965. Approval was also given for updating the membership records of some 25 000 persons who have been received into the ...
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INTEGRABLE SIGMA MODELS

International Journal of Modern Physics A, 1991
Integrability of sigma models is investigated in arbitrary dimensions. The conditions of the integrability are found and the corresponding linear eigenvalue equations are given. Some new classes of classically integrable sigma models are found in two and higher dimensions containing all the known models.
Gürses, Metin, Karasu, Atalay
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$$\sigma $$-Commuting and $$\sigma $$-Centralizing Anti-homomorphisms

Bulletin of the Iranian Mathematical Society, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Boua, Abdelkarim   +2 more
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