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Seminar "Complex analysis in several variables" (Vitushkin Seminar)
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Noncommutative unitary sigma-model: spaces of solutions with uniton number 2 A. V. Domrin |
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Abstract: We describe these spaces of solutions as finite-dimensional stratified real-analytic subsets in the unitary group of a Hilbert space and show that the dimension of each stratum is equal to the canonical rank of solutions that form the stratum. |
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