Hopf term, fractional spin and soliton operators in the \(\text{O}(3)\) nonlinear sigma model (Q1570556)

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Hopf term, fractional spin and soliton operators in the \(\text{O}(3)\) nonlinear sigma model
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    Hopf term, fractional spin and soliton operators in the \(\text{O}(3)\) nonlinear sigma model (English)
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    11 July 2000
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