Winter, Matthias2018-08-272018-08-271996-08-22Winter, M. (1996). Lavrentiev phenomenon in microstructure theory. <i>Electronic Journal of Differential Equations, 1996</i>(06), pp. 1-12.1072-6691https://hdl.handle.net/10877/7626A variational problem arising as a model in martensitic phase transformation including surface energy is studied. It explains the complex, multi-dimensional pattern of twin branching which is often observed in a martensitic phase near the austenite interface.</p> <p>We prove that a Lavrentiev phenomenon can occur if the domain is a rectangle. We show that this phenomenon disappears under arbitrarily small shears of the domain. We also prove that other perturbations of the problem lead to an extinction of the Lavrentiev phenomenon.Text12 pages1 file (.pdf)enAttribution 4.0 InternationalSingular perturbationLavrentiev phenomenonMartensitic phase transformationArticle