Abstract
Based on the orbifold string theory model in physics, we construct a new cohomology ring for any almost complex orbifold. The key theorem is the associativity of this new ring. Some examples are computed.
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Communicated by Y. Kawahigashi
Both authors partially supported by the National Science Foundation
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Chen, W., Ruan, Y. A New Cohomology Theory of Orbifold. Commun. Math. Phys. 248, 1–31 (2004). https://doi.org/10.1007/s00220-004-1089-4
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DOI: https://doi.org/10.1007/s00220-004-1089-4