Geodesic
Real Four-Dimensional $\mathit{GM}$-Triquadrics
Matematičeskie zametki, Tome 93 (2013) no. 6, pp. 844-852

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Nonsingular intersections of three real six-dimensional quadrics are considered. Such algebraic varieties are referred to for brevity as real four-dimensional triquadrics. Necessary and sufficient conditions for a real four-dimensional triquadric to be a $\mathit{GM}$-variety are established.
Mots-clés : six-dimensional quadric, triquadric
Keywords: $\mathit{GM}$ variety, spectral curve, spectral bundle, index function, cohomology group, Stiefel–Whitney class. 
@article{MZM_2013_93_6_a4,
     author = {V. A. Krasnov},
     title = {Real {Four-Dimensional} $\mathit{GM}${-Triquadrics}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {844--852},
     publisher = {mathdoc},
     volume = {93},
     number = {6},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2013_93_6_a4/}
}
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V. A. Krasnov. Real Four-Dimensional $\mathit{GM}$-Triquadrics. Matematičeskie zametki, Tome 93 (2013) no. 6, pp. 844-852. http://geodesic.mathdoc.fr/item/MZM_2013_93_6_a4/