Symplectic Cobordism in Small Dimensions and a Series of Elements of Order Four
We present the structure of symplectic cobordism ring $MSp_{*}$ in dimensions up to 51 and give a construction of an infinite series of elements $Γ_i$, $ i=1, 3,4, ...$, of order four in this ring, where $\operatorname{dim} \, Γ_i=8i+95$. The key element of the series is $Γ_1$ in dimension 103.
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