Well-posedness for the continuity equation for vector fields with suitable modulus of continuity |
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Authors: | Albert Clop Heikki Jylhä Joan Mateu Joan Orobitg |
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Institution: | Departament de Matemàtiques, Facultat de Ciències, Campus de la U.A.B., 08193-Bellaterra (Barcelona), Catalonia, Spain |
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Abstract: | We prove well-posedness of linear scalar conservation laws using only assumptions on the growth and the modulus of continuity of the velocity field, but not on its divergence. As an application, we obtain uniqueness of solutions in the atomic Hardy space, , for the scalar conservation law induced by a class of vector fields whose divergence is an unbounded BMO function. |
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Keywords: | Mass transport Hardy space Continuity equation |
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