We are interested in the study of local and global minimizers for an energy functional of the type where W is a smooth, even double-well potential and K is a non-negative symmetric kernel in a general class, which contains as a particular case the choice K(z)=|z|-N-2s, with s∈(0, 1), related to the fractional Laplacian. We show the existence and uniqueness (up to translations) of one-dimensional minimizers in the full space RN and obtain sharp estimates for some quantities associated to it. In particular, we deduce the existence of solutions of the non-local Allen-Cahn equation which possess one-dimensional symmetry.The results presented here were proved in [9,10,36] for the model case K(z)=|z|-N-2s. In our work, we consider instead general kernels which may be possibly non-homogeneous and truncated at infinity.
One-dimensional solutions of non-local Allen-Cahn-type equations with rough kernels / M. Cozzi, T. Passalacqua. - In: JOURNAL OF DIFFERENTIAL EQUATIONS. - ISSN 0022-0396. - 260:8(2016), pp. 6638-6696. [10.1016/j.jde.2016.01.006]
One-dimensional solutions of non-local Allen-Cahn-type equations with rough kernels
M. Cozzi
;T. Passalacqua
2016
Abstract
We are interested in the study of local and global minimizers for an energy functional of the type where W is a smooth, even double-well potential and K is a non-negative symmetric kernel in a general class, which contains as a particular case the choice K(z)=|z|-N-2s, with s∈(0, 1), related to the fractional Laplacian. We show the existence and uniqueness (up to translations) of one-dimensional minimizers in the full space RN and obtain sharp estimates for some quantities associated to it. In particular, we deduce the existence of solutions of the non-local Allen-Cahn equation which possess one-dimensional symmetry.The results presented here were proved in [9,10,36] for the model case K(z)=|z|-N-2s. In our work, we consider instead general kernels which may be possibly non-homogeneous and truncated at infinity.Pubblicazioni consigliate
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