Article
Ufa Mathematical Journal
Volume 9, Number 4, pp. 35-43
Selfadjoint restriction of maximal operator on graph
Kanguzhin B.E., Konyrkulzhayeva M.N., Zhapsarbayeva L.K.
DOI:10.13108/2017-9-4-35
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The paper is devoted to the linear differential operators defined on graphs. In this paper Lagrange formula for second-order differential operator on a graph with Kirchhoff conditions at its internal vertices is derived. The conditions for a selfadjointness of the differential operator on the graph are established.