Vol. 42 No. 1 (2022)

Articles

• Professor Jamal Nazrul Islam: The Scientist Wandering in Theoretical Science, Astronomy, and Cosmology

  Md Kamrujjaman

  001-009

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• Saving a Path and Maximizing Dynamic Contra ow: A Bilevel Programming Approach

  Hari Nandan Nath, Urmila Pyakurel, Stephan Dempe, Tanka Nath Dhamala

  010-024

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• Some Characterizations on Actions of Generalized Derivations AsHomomorphisms And Anti-Homomorphisms In SemiprimeGamma Rings

  Sujoy Chakraborty, Akhil Chandra Paul

  025–034

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• A Comparison Study between the Recently Developed Methods of Transportation Problem:A Study on the Lower-Dimensional Problems

  Nahid Sultana, HS Faruque Alam, Ganesh Chandra Rayb

  035–049

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• Numerical Approximations of a Nonlinear Volatility Model with European Options

  Jakobin Alam Khan, Asir Intesar Tushar

  050–068

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• Study on Flow Behavior in Terminal Bronchus of Human Lung for Porous Medium

  Sadiya Akhtera, MU Ahmmed

  069–080

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