Vol. 9 No. 2 (2021)

Articles

• Squeezing properties of nondegenerate three-level laser with degenerate parametric amplifier

  Misrak Getahun, Edris Salih

  73-83

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• Generalized models of flow of a fluid with pressure-dependent viscosity through porous channels: channel entry conditions

  M. .S.Abu Zaytoon, M. H.Hamdan, Yiyun (Lisa) Xiao

  84-91

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• Thermodynamic constant of time passage

  Mieczysław Dobija, Jurij Renkas

  92-97

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• Periodic wave analysis to the time-fractional phi-four and (2+1) dimensional CBS equations

  Samsun Nahar Ananna, Abdulla Al – Mamun, Tianqing An

  98-104

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