Fractional instantons and bions in the principal chiral model on
ℝ
2
×
S
1
$$ {\mathrm{\mathbb{R}}}^2\times {S}^1 $$
with twisted boundary conditions
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2002 ◽
Vol 547
(3-4)
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pp. 257-268
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1998 ◽
Vol 190
(3)
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pp. 675-695
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2000 ◽
Vol 83-84
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pp. 718-720
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2019 ◽
Vol 34
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pp. 1950052