Let L=-1ωdiv(A(x)·∇)+V\documentclass[12pt]{minimal}
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\begin{document}$$L=-\frac{1}{\omega }\textrm{div}(A(x)\cdot \nabla )+V$$\end{document} be a degenerate Schrödinger operator in Rn\documentclass[12pt]{minimal}
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\begin{document}$${\mathbb {R}}^{n}$$\end{document}, where ω\documentclass[12pt]{minimal}
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\begin{document}$$\omega $$\end{document} is a weight of the Muckenhoupt class A2\documentclass[12pt]{minimal}
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\begin{document}$$A_{2}$$\end{document}, A(x) is a real and symmetric matrix depending on x and satisfies C-1ω(x)|ξ|2≤A(x)ξiξj¯≤Cω(x)|ξ|2\documentclass[12pt]{minimal}
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\begin{document}$$\begin{aligned} C^{-1}\omega (x)|\xi |^{2} \le A(x)\xi _{i}\overline{\xi _{j}}\le C\omega (x)|\xi |^{2} \end{aligned}$$\end{document}for some positive constant C and all x, ξ\documentclass[12pt]{minimal}
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\begin{document}$$\xi $$\end{document} in Rn\documentclass[12pt]{minimal}
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\begin{document}$${\mathbb {R}}^{n}$$\end{document}, and V is a nonnegative potential belonging to a certain reverse Hölder class with respect to the measure ω(x)dx\documentclass[12pt]{minimal}
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\begin{document}$$\omega (x)dx$$\end{document}. By the subordinative formula, various regularity estimates about the fractional heat semigroup {e-tLα}t>0\documentclass[12pt]{minimal}
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\begin{document}$$\{e^{-tL^{\alpha }}\}_{t>0}$$\end{document} are investigated, where Lα\documentclass[12pt]{minimal}
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\begin{document}$$L^{\alpha }$$\end{document} denotes the fractional powers of L for α∈(0,1)\documentclass[12pt]{minimal}
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\begin{document}$$\alpha \in (0,1)$$\end{document}. As an application, we obtain the boundedness on the weighted Morrey spaces and BMO type spaces for some operator related to Lα\documentclass[12pt]{minimal}
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\begin{document}$$L^{\alpha }$$\end{document}.
