We point out relations between the injective complexification of a real Banach space and polynomial inequalities. In particular we prove a generalization of a classical Szegő inequality to the case of polynomial mappings between Banach spaces. As an application we observe a complex version of known Bernstein-Szegő type inequalities.
@article{bwmeta1.element.bwnjournal-article-doi-10_4064-bc107-0-3, author = {Miros\l aw Baran}, title = {Polynomial inequalities in Banach spaces}, journal = {Banach Center Publications}, volume = {104}, year = {2015}, pages = {23-42}, zbl = {06556701}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-bc107-0-3} }
Mirosław Baran. Polynomial inequalities in Banach spaces. Banach Center Publications, Tome 104 (2015) pp. 23-42. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-bc107-0-3/