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In mathematics, Topological Hochschild homology is a topological refinement of Hochschild homology which rectifies some technical issues with computations in characteristic . For instance, if we consider the -algebra then but if we consider the ring structure on (as a divided power algebra structure) then there is a significant technical issue: if we set , so , and so on, we have from the resolution of as an algebra over , i.e. giving a less pathological theory. Moreover, this calculation forms the basis of many other THH calculations, such as for smooth algebras

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  • Topological Hochschild homology (en)
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  • In mathematics, Topological Hochschild homology is a topological refinement of Hochschild homology which rectifies some technical issues with computations in characteristic . For instance, if we consider the -algebra then but if we consider the ring structure on (as a divided power algebra structure) then there is a significant technical issue: if we set , so , and so on, we have from the resolution of as an algebra over , i.e. giving a less pathological theory. Moreover, this calculation forms the basis of many other THH calculations, such as for smooth algebras (en)
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  • In mathematics, Topological Hochschild homology is a topological refinement of Hochschild homology which rectifies some technical issues with computations in characteristic . For instance, if we consider the -algebra then but if we consider the ring structure on (as a divided power algebra structure) then there is a significant technical issue: if we set , so , and so on, we have from the resolution of as an algebra over , i.e. This calculation is further elaborated on the Hochschild homology page, but the key point is the pathological behavior of the ring structure on the Hochschild homology of . In contrast, the Topological Hochschild Homology ring has the isomorphism giving a less pathological theory. Moreover, this calculation forms the basis of many other THH calculations, such as for smooth algebras (en)
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