Necessary and sufficient condition for the positivity of the Green function of a boundary value problem for a fourth-order equation on a graph
Crossref DOI link: https://doi.org/10.1134/S0012266115030039
Published Online: 2015-04-08
Published Print: 2015-03
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Kulaev, R. Ch.
Text and Data Mining valid from 2015-03-01