Geodesic
$SU$-linear operations in complex cobordism and the $c_1$-spherical bordism theory
Izvestiya. Mathematics , Tome 87 (2023) no. 4, pp. 768-797

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We study the $SU$-linear operations in complex cobordism and prove that they are generated by the well-known geometric operations $\partial_i$. For the theory $W$ of $c_1$-spherical bordism, we describe all $SU$-linear multiplications on $W$ and projections $MU \to W$. We also analyse complex orientations on $W$ and the corresponding formal group laws $F_W$. The relationship between the formal group laws $F_W$ and the coefficient ring $W_*$ of the $W$-theory was studied by Buchstaber in 1972. We extend his results by showing that for any $SU$-linear multiplication and orientation on $W$, the coefficients of the corresponding formal group law $F_W$ do not generate the ring $W_*$, unlike the situation with complex bordism.
Keywords: complex bordism, cohomological operations, formal group laws.
Mots-clés : $SU$-bordism 
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     title = {$SU$-linear operations in complex cobordism and the $c_1$-spherical bordism theory},
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T. E. Panov; G. S. Chernykh. $SU$-linear operations in complex cobordism and the $c_1$-spherical bordism theory. Izvestiya. Mathematics , Tome 87 (2023) no. 4, pp. 768-797. http://geodesic.mathdoc.fr/item/IM2_2023_87_4_a3/