Proceedings of Yerevan State University 1990 # 3 (175)
Proceedings of Yerevan State University 1990 # 3 (175) 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.
The first Editor in Chief in 1967-1972 was academician of Armenian AS Hovhannes H. Chaltikyan
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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    Proceedings of Yerevan State University


    Editorial Board
    Chubaryan E. V. (editor), Aroutiounian R. M., Ghazarian H. G. (deputy editors),
    Sharambeyan L. T. (executive secretary),
    Avetisian A. A., Balian S. P., Beylerian N. M., Danielyan E. A., Haroutunian Vil. M., Haroutunian Vl. M., Khachatryan I. G., Osipyan L. L., Sahakian G. S., Sargsyan H. H., Sargsyan V. S., Sedrakian D. M. Shahbagian R. L., Talalian A. A., Tonoyan R. N.

    Table of Contents

    G. V. Virabian, G. A. Sargsian

    On the spectral properties of the pencil of Monge-Amper non-linear equations In vector-functions spaces | Proceedings of YSU, Natural Sciences, 1990, #3, p. 3-7 (in russian) |

    S. G. Rafayelyan

    Exponential type interpolation by entire functions: p. II | Proceedings of YSU, Natural Sciences, 1990, #3, p. 8-14 (in russian) |

    R. G. Hairapetian, L. S. Kantardjian

    On the exact control of the mixed problem for the oscillating string equation | Proceedings of YSU, Natural Sciences, 1990, #3, p. 15-20 (in russian) |

    E. A. Mirzakhanian

    On some classes of mappings of Hilbert space subsets | Proceedings of YSU, Natural Sciences, 1990, #3, p. 21-28 (in russian) |

    P. S. Avetissian

    On coertative resolvability of an equation with parameter | Proceedings of YSU, Natural Sciences, 1990, #3, p. 29-33 (in russian) |

    S. G. Shahinian

    On a stability problem of systems with distributed parameters in case of time-dependent integrally-small perturbations | Proceedings of YSU, Natural Sciences, 1990, #3, p. 34-40 (in russian) |

    S. V. Sarkissian

    On the vibration of nonhomogeneous string | Proceedings of YSU, Natural Sciences, 1990, #3, p. 41-44 (in russian) |

    V. M. Haroutunian, A. A. Karagiozov

    Charge thermogeneration in 3-phase photodetectlonal CCD | Proceedings of YSU, Natural Sciences, 1990, #3, p. 45-49 (in russian) |

    H. M. Chplakhian, H. Ye. Mkrtchian, A. V. Djambariants

    Single-measured model of intramolecular regroupings with known initial and final states | Proceedings of YSU, Natural Sciences, 1990, #3, p. 50-56 (in russian) |

    V. G. Barkhudarian, M. H. Avetissian, V. I. Vardanian

    The influence of γ-radiation on molecular characteristics of polyethylene. III. The investigation of the molecular mass distribution | Proceedings of YSU, Natural Sciences, 1990, #3, p. 57-59 (in russian) |

    C. V. Aloumian, F. H. Eiramdjian

    X-ray determination of the elactisity modulus of laser irradiated Si monocrystals | Proceedings of YSU, Natural Sciences, 1990, #3, p. 60-64 (in russian) |

    P. H. Besirganian, H. A. Ismail, A. H. Martirossian

    The Laue reflexes, received by thick perfect crysrals with deformed subsurface layers | Proceedings of YSU, Natural Sciences, 1990, #3, p. 65-69 (in russian) |

    R. H. Chaltikian, G. E. Safarian, L. L. Zargarian, G. S. Simonian

    Specific interactions between VA-AN and VA-CHP monomer pairs | Proceedings of YSU, Natural Sciences, 1990, #3, p. 70-72 (in russian) |

    L. A. Khachatrian, L. H. Sahakian, P. Hrchiar, N. O. Margarian, A. A. Avetissian

    The synthesis of some new derivatives of N-containing heterocyclic combinations on the basis of 1,3-cycloundecadione | Proceedings of YSU, Natural Sciences, 1990, #3, p. 78-82 (in russian) |

    M. G. Haroutunian, S. D. Baghdassarian, R. A. Sarkissian, E. Ye. Kapantsian

    The investigation of solubility of Na_2MoO_4-Na_3C_6H_5O_7-H_2O system at 20°C | Proceedings of YSU, Natural Sciences, 1990, #3, p. 83-86 (in russian) |

    S. M. Markarian, V. M. Tadevossian, Sh. A. Markarian, V. A. Petrossian

    Intensification of leather tanning in the presence of dimethylsulfoxide | Proceedings of YSU, Natural Sciences, 1990, #3, p. 87-90 (in russian) |

    D. S. Gaibakian, D. J. Hamwi

    The thin-layer chromatography of the elements. Separation of gold(III), selenium(IV), selenium(VI), tellurlum(IV), tellurium(VI) ions in natric acid solutions | Proceedings of YSU, Natural Sciences, 1990, #3, p. 91-97 (in russian) |

    N. S. Hagopian, N. V. Sarkissian, N. Y. Sarkissian

    Amygdal old regulation mechanisms of bulbar breathing neurons activity in hypoxia dynamics | Proceedings of YSU, Natural Sciences, 1990, #3, p. 98-104 (in russian) |

    L. A. Ghukassian, A. I. Gorovaya, I. P. Kasparova

    The action of natrium humate on the frequency of somatic mutation induced by tetramethyltiuram-dlsulphide | Proceedings of YSU, Natural Sciences, 1990, #3, p. 105-109 (in russian) |

    S. P. Hovhannissian, H. H. Babayan

    The Influence of stereoisomers of amino acids on the activity of D-amino acid oxidase of Aspergillus niger R-3 | Proceedings of YSU, Natural Sciences, 1990, #3, p. 110-113 (in russian) |

    L. L. Hovsepian, H. G. Batikian, G. A. Hovhannissian

    The flora of mycel ial fungi of raw material used in the production of the grape Juice under the conditions of Armenia | Proceedings of YSU, Natural Sciences, 1990, #3, p. 114-119 (in russian) |

    K. G. Avakian, B. I. Dildarian

    The forest vegetation of the north-eastem slopes of Techenys ridge in Armenia | Proceedings of YSU, Natural Sciences, 1990, #3, p. 120-124 (in russian) |

    S. Kh. Pipoyan, R. A. Mailian

    The morphological characteristics of gold-fish Carassius auratus gibelio (Bloch) in various reservoires of Ararat valley | Proceedings of YSU, Natural Sciences, 1990, #3, p. 125-131 (in russian) |

    G. G. Adamian

    The interconnection between geological and technological conditions of drilling geologlcal prospecting drill holes on copper-molybdenum deposits of Armenia | Proceedings of YSU, Natural Sciences, 1990, #3, p. 132-138 (in russian) |

    B. H. Besirganian, A. N. Martlrossian

    On the role of mineral columns In the distribution of gold reserves in one of the Minor Caucasus ores | Proceedings of YSU, Natural Sciences, 1990, #3, p. 139-144 (in russian) |

    S. M. Musaelian

    Some resul ts of the passportization of the con-tamination sources of the lake Sevan and its basin | Proceedings of YSU, Natural Sciences, 1990, #3, p. 145-151 (in russian) |

    S. G. Sargsian

    The calculation of probability characteristics of perceptron type recognition system | Proceedings of YSU, Natural Sciences, 1990, #3, p. 152-154 (in russian) |

    S. A. Mnatsakanian

    Evaluation of the value of saturation magnetization of ferits based on the analysis of ferromagnetic resonance spectra | Proceedings of YSU, Natural Sciences, 1990, #3, p. 155-157 (in russian) |

    E. S. Sarkissian, V. N. Poroshin, A. M. Khachatrian, D. H. Baghdasarian

    Temperature dependence of laser radiation λ= 10.6mkm absorption in hole germanium | Proceedings of YSU, Natural Sciences, 1990, #3, p. 158-161 (in russian) |

    G. S. Simonian, L. G. Melic-Ohanjanian, B. M. Soghomonian, N. M. Beylerian

    Some pecullarities of the oxidation product of phenyldiethanolamine by bensoyl peroxide at acrylonitrile polymerization in dimethyl formamlde | Proceedings of YSU, Natural Sciences, 1990, #3, p. 162-165 (in russian) |

    M. G. Taslakhchian, S. G. Nanagjulian, L. L. Osipian

    The stimula¬ting and inhibiting effect of some micromycetes in Armenia on the germination of culture seeds | Proceedings of YSU, Natural Sciences, 1990, #3, p. 166-168 (in russian) |

    V. H. Grigorian, A. G. Karapetian, A. R. Aghababian

    Electrical activity of the visual area of the cortex and functional state of the display man-operator | Proceedings of YSU, Natural Sciences, 1990, #3, p. 169-171 (in russian) |
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