1,721,002 research outputs found
Italy (Siena), SCLAVO -- 1974-75 -- OPV Production, International -- letter, 1975-11-19
No full textLetter from Pontecorvo, M. to Perkins, F. T. dated 1975-11-19.Sabin Collection Fair Use Policy</a
Italy (Siena), SCLAVO -- 1976 -- OPV Production, International -- letter, 1976-04-16
No full textLetter from Pontecorvo, M. to Sabin, Albert B. dated 1976-04-16.Sabin Collection Fair Use Policy</a
Italy (Siena), SCLAVO -- 1977 -- OPV Production, International -- letter, 1977-05-17
No full textLetter from Pontecorvo, M. to Sabin, Albert B. dated 1977-05-17.Sabin Collection Fair Use Policy</a
I temi del confronto metodologico
No full textEditrice Centro Stampa Università-Università degli studi di Roma La Sapienza-Rom
Instantons on hyperkähler manifolds
Full text linkAn instanton on a (pseudo-)hyperk\"ahler manifold is a vector bundle associated to a principal -bundle with a connection whose curvature is pointwise invariant under the quaternionic structures of , and thus satisfies the Yang-Mills equations. Revisiting a construction of solutions, we prove a local bijection between gauge equivalence classes of instantons on and equivalence classes of certain holomorphic functions taking values in the Lie algebra of defined on an appropriate -bundle over . Our reformulation affords a streamlined proof of Uhlenbeck's Compactness Theorem for instantons on (pseudo-)hyperk\"ahler manifolds
Proceedings of the Second Meeting on Quaternionic Structures in Mathematics and Physics
No full textDuring the last five years, after the first meeting on “Quaternionic Structures in Mathematics and Physics”, interest in quaternionic geometry and its applications has continued to increase. Progress has been made in constructing new classes of manifolds with quaternionic structures (quaternionic Kähler, hyper-Kähler, hyper-complex, etc.), studying the differential geometry of special classes of such manifolds and their submanifolds, understanding relations between the quaternionic structure and other differential-geometric structures, and also in physical applications of quaternionic geometry. Some generalizations of classical quaternion-like structures (like HKT structures and hyper-Kähler manifolds with singularities) appeared naturally and were studied. Some of those results are published in this book.World Scientific Publishing, Singapore. Anche nella e-library della European Mathematical Society
Hyperkähler cones and instantons on quaternionic Kähler manifolds
Full text linkWe present a novel approach to the study of Yang-Mills instantons on quaternionic Kähler manifolds, based on an extension of the harmonic space method of constructing instantons on hyperk\"ahler manifolds. Our results establish a bijection between local equivalence classes of instantons on quaternionic Kähler manifolds M and equivalence classes of certain holomorphic maps on an appropriate SL_2(C)-bundle over the Swann bundle of M
Some geometric aspects of compatible complex structures on a quaternion Kaehler manifold
No full textAtto dei Proceedings of the 7th International Conference DGA98 (Brno, August 10-14, 1998, Masaryk University) - Satellite Conference of ICM in Berli
Hyperkähler cones and instantons on quaternionic Kähler manifolds
No full textWe present a novel approach to the study of Yang–Mills instantons on quaternionic Kähler manifolds, based on an extension of the harmonic space method of constructing instantons on hyperkähler manifolds. Our results establish a bijection between local equivalence classes of instantons on quaternionic Kähler manifolds M and equivalence classes of certain holomorphic maps on an appropriate SL 2(C) -bundle over the Swann bundle of M
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