DANIEL
CAO LABORA
Profesor axudante doutor
Institute of Mathematics and Informatics
Sofía, BulgariaPublikationen in Zusammenarbeit mit Forschern von Institute of Mathematics and Informatics (1)
2020
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Analysis of the sign of the solution for certain second-order periodic boundary value problems with piecewise constant arguments
Mathematics, Vol. 8, Núm. 11, pp. 1-34