Bandyopadhyay, SaugataSil, Swarnendu2016-10-182016-10-182016-10-18201610.1515/acv-2015-0022https://infoscience.epfl.ch/handle/20.500.14299/129899WOS:000378914500006Ext-int. one affine functions are functions affine in the direction of one-divisible exterior forms with respect to the exterior product in one variable and with respect to the interior product in the other. The purpose of this article is to prove a characterization theorem for this class of functions, which plays an important role in the calculus of variations for differential forms.Affineext. one affineext-int. one affineexterior convexityexterior formdifferential formtext::journal::journal article::research article