{ "id": "2208.02527", "version": "v1", "published": "2022-08-04T08:47:43.000Z", "updated": "2022-08-04T08:47:43.000Z", "title": "Non-autonomous $L^q(L^p)$ maximal regularity for complex systems under mixed regularity in space and time", "authors": [ "Sebastian Bechtel", "Fabian Gabel" ], "categories": [ "math.AP", "math.CA" ], "abstract": "We show non-autonomous $L^q(L^p)$ maximal regularity for families of complex second-order systems in divergence form under a mixed H{\\\"o}lder regularity condition in space and time.To be more precise, we let $p,q \\in (1,\\infty)$ and we consider coefficient functions in $C^{\\beta + \\varepsilon}$ with values in $C^{\\alpha + \\varepsilon}$ subject to the parabolic relation $2\\beta + \\alpha = 1$.To this end, we provide a weak $(p,q)$-solution theory with uniform constants and establish a priori higher spatial regularity.Furthermore, we show $p$-bounds for semigroups and square roots generated by complex elliptic systems under a minimal regularity assumption for the coefficients.", "revisions": [ { "version": "v1", "updated": "2022-08-04T08:47:43.000Z" } ], "analyses": { "keywords": [ "maximal regularity", "complex systems", "mixed regularity", "priori higher spatial regularity", "complex second-order systems" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }