Ismailov, Zameddin I.Öztürk Mert, Rukiye2019-05-132019-05-132013Ismailov, Z. I., Mert, R. Ö. (2011). Selfadjoint extensions of a singular multipoint differential operator of first order. Electronic Journal of Differential Equations.1072-6691https://hdl.handle.net/11491/1251Many problems arising in the modelling of processes of multi-particle quantum mechanics,in the quantum field theory,in the multipoint boundary value problems for the differential equations,in the physics of rigid bodies and ets support to study selfadjoint extension of symmetric differential operators in direct sum of Hilbert spaces([1-3]).eninfo:eu-repo/semantics/closedAccessMultipoint Differential OperatorsQuantum Field TheorySelfadjoint ExtensionSpectrumArticle2013N/AQ3