Proceedings of the YSU, Physical and Mathematical Sciences 2020, volume 54, № 3
Proceedings of the YSU, Physical and Mathematical Sciences 2020, volume 54, № 3 About
Published since 1925. Currently the peer-reviewed works on natural sciences, mathematics and informatics are published here in Armenian, Russian and English languages.
"Proceedings of the YSU" is published three times a year. The journal presents original articles containing new results of theoretical, experimental and applied research, carried out in YSU or other Armenian and foreign scientific centers.

Scince 2009 the Journal is publishing in three series

Physical and Mathematical Series
Editor in Chief Professor Varujan S. Atabekyan
Chemical and Biological Series,
Editor in Chief Professor Rouben M. Harutyunyan
Geografical and Geologicall Series
Editor in Chief Professor Hoghmik H. Sargsyan
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    Table of Contents

    A. A. Chubaryan, A. A. Hambardzumyan

    On non-monotonous properties of some classical and nonclassical propositional proof systems | Proceedings of YSU, Physical and Mathematical Sciences, 2020, v. 54, #3, p. 127-136 |

    A. H. Gharibyan, P. A. Petrosyan

    On locally-balanced 2-partitions of bipartite graphs | Proceedings of YSU, Physical and Mathematical Sciences, 2020, v. 54, #3, p. 137-145 |

    M. V. Belubekyan, A. A. Papyan

    Vibrations of piezoelectric layer of class 6 mm with rigidly clamped and free edges under initial conditions | Proceedings of YSU, Physical and Mathematical Sciences, 2020, v. 54, #3, p. 146-152 |

    A. V. Kerobyan

    On a problem for an elastic infinite sheet strengthened by two parallel stringers with finite lengths through adhesive shear layers | Proceedings of YSU, Physical and Mathematical Sciences, 2020, v. 54, #3, p. 153-164 |
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