2020-10-31T17:29:57Zhttps://uvadoc.uva.es/oai/requestoai:uvadoc.uva.es:10324/257422020-05-15T10:28:47Zcom_10324_1176com_10324_931com_10324_894col_10324_1359
00925njm 22002777a 4500
dc
Campos, Juan
author
Obaya GarcĂa, Rafael
author
Tarallo, Massimo
author
2017
Fredholm Alternative is a classical tool of periodic linear equations, allowing to describe the existence of periodic solutions of an inhomogeneous equation in terms of the adjoint equation. A few partial extensions have been proposed in the literature for recurrent equations: our aim is to point out that they have a common root and discuss whether such a root gives rise to a general Fredholm-type Alternative. Sackerâ€“Sell spectral theory and Favard theory are main ingredients in this discussion: a considerable effort is devoted to understand how Favard theory is affected by adjunction, at least for planar equations.
Journal of Differential Equations 262 (2017), no.2 749-802
0022-0396
http://uvadoc.uva.es/handle/10324/25742
10.1016/j.jde.2016.09.041
Favard theory for the adjoint equation and Fredholm alternative