TY - JOUR A1 - Naumann, Helen A1 - Theobald, Thorsten T1 - The 𝒮-cone and a primal-dual view on second-order representability T2 - Beiträge zur Algebra und Geometrie = Contributions to algebra and geometry N2 - The 𝒮-cone provides a common framework for cones of polynomials or exponen- tial sums which establish non-negativity upon the arithmetic-geometric inequality, in particular for sums of non-negative circuit polynomials (SONC) or sums of arithmetic- geometric exponentials (SAGE). In this paper, we study the S-cone and its dual from the viewpoint of second-order representability. Extending results of Averkov and of Wang and Magron on the primal SONC cone, we provide explicit generalized second- order descriptions for rational S-cones and their duals. KW - Positive polynomials KW - Sums of non-negative circuit polynomials KW - Arithmetic-geometric exponentials KW - Dual cone KW - 𝒮-cone KW - Second-order cone Y1 - 2020 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/72217 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-722173 SN - 2191-0383 N1 - MSC-Klassifikation: 90C23 - The Geometry of Memoryless Stochastic Policy Optimization in Infinite-Horizon POMDPs N1 - Open Access funding provided by Projekt DEAL. The work was partially supported through the project “Real Algebraic Geometry and Optimization” jointly funded by the German Academic Exchange Service DAAD and the Research Council of Norway RCN. VL - 62 IS - 1 SP - 229 EP - 249 PB - Springer CY - Berlin ; Heidelberg ER -