Mixed-smooth Besov空間

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https://gyazo.com/0e24d4923670f84c8db12823540ce55d

https://gyazo.com/946bac9a3242fb42901991b601df3c10

https://gyazo.com/370c3c2d9a9feefcb114227d51bd3213

https://gyazo.com/8baaf49995691830b4c486d3e30628ed