Racah

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• Racah — Giulio (Yoel) Racah (* 9. Februar 1909 in Florenz, Italien; † 28. August 1965 ebenda) war ein israelischer Mathematiker und Physiker. Racah wurde in Florenz ausgebildet und promovierte 1930 an der dortigen Universität. In der Folge studierte er… …   Deutsch Wikipedia

• Racah (Cratère) — Racah Localisation Astre Lune Coordonnées 13°  48’  00’’ Sud 179°  48’  00’’ Ouest [1] …   Wikipédia en Français

• Racah (cratere) — Racah (cratère) Racah Localisation Astre Lune Coordonnées 13°  48’  00’’ Sud 179°  48’  00’’ Ouest [1] …   Wikipédia en Français

• Racah W-coefficient — Racah s W coefficients were introduced by Giulio Racah in 1942. [G. Racah, Theory of Complex Spectra II , Physical Review, vol. 62, pp. 438 462 (1942).] These coefficients have a purely mathematical definition. In physics theyare used in… …   Wikipedia

• RACAH, GIULIO — (Yoel; 1909–1965), Israeli physicist, born in Florence, Italy. On his mother s side, Racah s family claimed to trace its ancestry in Italy back to the destruction of the Second Temple. Racah studied in Rome under Enrico Fermi and in Pisa under… …   Encyclopedia of Judaism

• Racah (cratère) — Racah Localisation Astre Lune Coordonnées …   Wikipédia en Français

• Racah polynomials — In mathematics, Racah polynomials are orthogonal polynomials named after Giulio Racah, as their orthogonality relations are equivalent to his orthogonality relations for Racah coefficients.The Racah polynomials were first defined by… …   Wikipedia

• Racah (crater) — lunar crater data latitude=13.8 N or S=S longitude=179.8 E or W=W diameter=63 km depth= Unknown colong=180 eponym=Giulio RacahRacah is a lunar impact crater on the far side of the Moon. It lies almost due south of the larger Daedalus crater, and… …   Wikipedia

• Racah parameter — When an atom has more than one electron there will be some electrostatic repulsion between those electrons. The amount of repulsion varies from atom to atom, depending upon the number and spin of the electrons and the orbitals they occupy. The… …   Wikipedia

• Racah-Parameter — Der israelisch italienische Mathematiker und Physiker Giulio Racah beobachtete, dass die bei Mehrelektronensystemen auftretende elektrostatische Abstoßung in ihrer Gesamtheit durch nur drei Linearkombinationen Slater’scher… …   Deutsch Wikipedia

• Racah coefficient — Rakaho koeficientas statusas T sritis fizika atitikmenys: angl. Racah coefficient vok. Racah Koeffizient, m rus. коэффициент Ракаха, m pranc. coefficient de Racah, m …   Fizikos terminų žodynas