Counter-examples of regularity behavior for σ-evolution equations |
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| Authors: | Ziheng Tu Xiaojun Lu |
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| Institution: | a Department of Mathematics, Zhejiang University, Hangzhou 310027, PR China
b Basque Center for Applied Mathematics (BCAM), Bizkaia Technology Park, Building 500, E-48160 Derio, Spain |
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| Abstract: | In this paper, we mainly discuss the infinite loss of regularity and μ-loss for a σ-evolution type model with oscillating in time coefficients. On the one hand, an explicit counter-example has been constructed in the frequency space to show the precise infinite loss of regularity. On the other hand, due to the finite propagation speed property for σ∈(0,1], we construct the counter-example of a sequence of solutions in R by applying state of art techniques. |
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| Keywords: | μ-Loss of derivatives Principle symbols Floquet theory Instability argument σ-Evolution model |
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