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تسجيل مستخدم جديدInvertible phases of matter with spatial symmetry
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We propose a general formula for the group of invertible topological phases on a space $Y$, possibly equipped with the action of a group $G$. Our formula applies to arbitrary symmetry types. When $Y$ is Euclidean space and $G$ a crystallographic group, the term `topological crystalline phases is sometimes used for these phases of matter.
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