يعرض 1 - 20 نتائج من 75 نتيجة بحث عن '"Das, Pratibhamoy"', وقت الاستعلام: 0.54s تنقيح النتائج
  1. 1
    Academic Journal
    A uniformly convergent analysis for multiple scale parabolic singularly perturbed convection-diffusion coupled systems: Optimal accuracy with less computational time.

    المؤلفون: Kumar, Shridhar1 (AUTHOR) shridhar_2121ma11@iitp.ac.in, Das, Pratibhamoy1 (AUTHOR) pratibhamoy@gmail.com

    المصدر: Applied Numerical Mathematics. Jan2025, Vol. 207, p534-557. 24p.

    مصطلحات موضوعية: *MULTIPLE scale method, *COUPLING reactions (Chemistry), *BOUNDARY layer (Aerodynamics), *BANDWIDTHS, *SINGULAR perturbations


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  2. 2
    Academic Journal
    Impact of mixed boundary conditions and nonsmooth data on layer‐originated nonpremixed combustion problems: Higher‐order convergence analysis.

    المؤلفون: Kumar, Shridhar, R, Ishwariya, Das, Pratibhamoy

    المصدر: Studies in Applied Mathematics; Nov2024, Vol. 153 Issue 4, p1-32, 32p

    مصطلحات موضوعية: BOUNDARY layer (Aerodynamics), REACTIVE flow, NONLINEAR equations, COMBUSTION


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  3. 3
    Academic Journal
    A higher order stable numerical approximation for time‐fractional non‐linear Kuramoto–Sivashinsky equation based on quintic B‐‐spline.

    المؤلفون: Choudhary, Renu, Singh, Satpal, Das, Pratibhamoy, Kumar, Devendra

    المصدر: Mathematical Methods in the Applied Sciences; Oct2024, Vol. 47 Issue 15, p11953-11975, 23p

    مصطلحات موضوعية: NUMERICAL analysis, EQUATIONS, QUINTIC equations


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  4. 4
    Academic Journal
    On the approximate solutions of a class of fractional order nonlinear Volterra integro-differential initial value problems and boundary value problems of first kind and their convergence analysis

    المؤلفون: Das, Pratibhamoy, Rana, Subrata, Ramos Calle, Higinio

    مصطلحات موضوعية: Fractional integro differential equation, Volterra differential equation of first kind, Existence and uniqueness, Perturbation based approximation, Homotopy perturbation, Convergence analysis, 12 Matemáticas, 1299 Otras Especialidades Matemáticas

    Relation: https://doi.org/10.1016/j.cam.2020.113116; http://hdl.handle.net/10366/154421

    الاتاحة: http://hdl.handle.net/10366/154421

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  5. 5
    Academic Journal
    Adaptive mesh based efficient approximations for Darcy scale precipitation–dissolution models in porous media.

    المؤلفون: Kumar, Shridhar, Das, Pratibhamoy, Kumar, Kundan

    المصدر: International Journal for Numerical Methods in Fluids; Aug2024, Vol. 96 Issue 8, p1415-1444, 30p

    مصطلحات موضوعية: POROUS materials, MODELS & modelmaking, DISCONTINUOUS precipitation, FINITE differences, SMOOTHNESS of functions, GEOCHEMICAL modeling


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  6. 6
    Academic Journal
    Higher-order convergence analysis for interior and boundary layers in a semi-linear reaction-diffusion system networked by a $ k $-star graph with non-smooth source terms.

    المؤلفون: Sarkar, Dilip, Kumar, Shridhar, Das, Pratibhamoy, Ramos, Higinio

    المصدر: Networks & Heterogeneous Media; 2024, Vol. 19 Issue 3, p1-31, 31p

    مصطلحات موضوعية: FUNCTION spaces, BOUNDARY layer (Aerodynamics), NONLINEAR equations


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  7. 7
    Academic Journal
    A higher order stable numerical approximation for time‐fractional non‐linear Kuramoto–Sivashinsky equation based on quintic B$$ \mathfrak{B} $$‐spline

    المؤلفون: Choudhary, Renu, Singh, Satpal, Das, Pratibhamoy, Kumar, Devendra

    المصدر: Mathematical Methods in the Applied Sciences ; ISSN 0170-4214 1099-1476

    الاتاحة: http://dx.doi.org/10.1002/mma.9778
    https://onlinelibrary.wiley.com/doi/pdf/10.1002/mma.9778

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  8. 8
    Academic Journal
    Parameter uniform higher order numerical treatment for singularly perturbed Robin type parabolic reaction diffusion multiple scale problems with large delay in time

    المؤلفون: Saini, Sumit, Das, Pratibhamoy, Kumar, Sunil

    المساهمون: Science and Engineering Research Board

    المصدر: Applied Numerical Mathematics ; volume 196, page 1-21 ; ISSN 0168-9274

    الاتاحة: http://dx.doi.org/10.1016/j.apnum.2023.10.003
    https://api.elsevier.com/content/article/PII:S016892742300257X?httpAccept=text/xml
    https://api.elsevier.com/content/article/PII:S016892742300257X?httpAccept=text/plain

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  9. 9
    Academic Journal
    A graded mesh refinement approach for boundary layer originated singularly perturbed time‐delayed parabolic convection diffusion problems

    المؤلفون: Kumar, Kamalesh, Podila, Pramod Chakravarthy, Das, Pratibhamoy, Ramos Calle, Higinio

    مصطلحات موضوعية: adaptive mesh algorithm, algorithmic complexity, boundary layer phenomena, graded mesh, parabolic convection–diffusion problems, time delay, 12 Matemáticas, 1299 Otras Especialidades Matemáticas. Matemática aplicada

    Relation: https://doi-org.usal.idm.oclc.org/10.1002/mma.7358; http://hdl.handle.net/10366/154420

    الاتاحة: http://hdl.handle.net/10366/154420

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  10. 10
    Report
    Numerical solution of singularly perturbed convection-diffusion-reaction problems with two small parameters

    المؤلفون: Das, Pratibhamoy, Mehrmann, Volker

    مصطلحات موضوعية: 510 Mathematik, parabolic partial differential equation, convection-diffusion-reaction problem, upwind scheme, adaptive mesh, mesh equidistribution, two parameter singular perturbation problem, uniform convergence

    وصف الملف: application/pdf

    Relation: https://depositonce.tu-berlin.de/handle/11303/15815; http://dx.doi.org/10.14279/depositonce-14588

    الاتاحة: https://depositonce.tu-berlin.de/handle/11303/15815
    https://doi.org/10.14279/depositonce-14588

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  11. 11
    Academic Journal
    A perturbation-based approach for solving fractional-order Volterra–Fredholm integro differential equations and its convergence analysis.

    المؤلفون: Das, Pratibhamoy, Rana, Subrata, Ramos Calle, Higinio

    مصطلحات موضوعية: Fractional integro differential equation, Caputo fractional derivative, Volterra–Fredholm integral equation, Approximation theory, Convergence analysis, Perturbation approach, Experimental evidence

    Relation: Das, P., Rana, S., & Ramos, H. (2020). A perturbation-based approach for solving fractional-order Volterra–Fredholm integro differential equations and its convergence analysis. International Journal of Computer Mathematics, 97(10), 1994–2014. https://doi.org/10.1080/00207160.2019.1673892; http://hdl.handle.net/10366/157027

    الاتاحة: http://hdl.handle.net/10366/157027

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  12. 12
    Academic Journal
    Homotopy perturbation method for solving Caputo‐type fractional‐order Volterra‐Fredholm integro‐differential equations.

    المؤلفون: Das, Pratibhamoy, Rana, Subrata, Ramos Calle, Higinio

    مصطلحات موضوعية: Approximation method, Caputo fractional derivative, Integro-differential equation, Homotopy perturbation, Volterra-Fredholm equation, 12 Matemáticas

    Relation: https://doi.org/10.1002/cmm4.1047; Das P, Rana S, Ramos H. Homotopy perturbation method for solving Caputo-type fractional-order Volterra-Fredholm integro-differential equations. Comp and Math Methods. 2019; 1:e1047. https://doi.org/10.1002/cmm4.1047; http://hdl.handle.net/10366/157038

    الاتاحة: http://hdl.handle.net/10366/157038

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  13. 13
    Academic Journal
    Parameter uniform optimal order numerical approximation of a class of singularly perturbed system of reaction diffusion problems involving a small perturbation parameter

    المؤلفون: Das, Pratibhamoy, Vigo-Aguiar, Jesus

    المساهمون: Universidad de Cádiz

    المصدر: Journal of Computational and Applied Mathematics ; volume 354, page 533-544 ; ISSN 0377-0427

    الاتاحة: http://dx.doi.org/10.1016/j.cam.2017.11.026
    https://api.elsevier.com/content/article/PII:S0377042717305861?httpAccept=text/xml
    https://api.elsevier.com/content/article/PII:S0377042717305861?httpAccept=text/plain

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  14. 14
    Academic Journal
    A theoretical study of the fractional-order p-Laplacian nonlinear Hadamard type turbulent flow models having the Ulam–Hyers stability

    المؤلفون: Srivastava, H. M., Nain, Ankit K., Vats, Ramesh K., Das, Pratibhamoy

    المصدر: Revista de la Real Academia de Ciencias Exactas, Físicas y Naturales. Serie A. Matemáticas ; volume 117, issue 4 ; ISSN 1578-7303 1579-1505

    الاتاحة: http://dx.doi.org/10.1007/s13398-023-01488-6
    https://link.springer.com/content/pdf/10.1007/s13398-023-01488-6.pdf
    https://link.springer.com/article/10.1007/s13398-023-01488-6/fulltext.html

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  15. 15
    Academic Journal
    Computational cost reduction for coupled system of multiple scale reaction diffusion problems with mixed type boundary conditions having boundary layers

    المؤلفون: Saini, Sumit, Das, Pratibhamoy, Kumar, Sunil

    المساهمون: Science and Engineering Research Board

    المصدر: Revista de la Real Academia de Ciencias Exactas, Físicas y Naturales. Serie A. Matemáticas ; volume 117, issue 2 ; ISSN 1578-7303 1579-1505

    الاتاحة: http://dx.doi.org/10.1007/s13398-023-01397-8
    https://link.springer.com/content/pdf/10.1007/s13398-023-01397-8.pdf
    https://link.springer.com/article/10.1007/s13398-023-01397-8/fulltext.html

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  16. 16
    Academic Journal
    A higher order hybrid-numerical approximation for a class of singularly perturbed two-dimensional convection-diffusion elliptic problem with non-smooth convection and source terms

    المؤلفون: Shiromani, Ram, Shanthi, Vembu, Das, Pratibhamoy

    المساهمون: Ministry of Education, India, Science and Engineering Research Board

    المصدر: Computers & Mathematics with Applications ; volume 142, page 9-30 ; ISSN 0898-1221

    الاتاحة: http://dx.doi.org/10.1016/j.camwa.2023.04.004
    https://api.elsevier.com/content/article/PII:S0898122123001402?httpAccept=text/xml
    https://api.elsevier.com/content/article/PII:S0898122123001402?httpAccept=text/plain

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  17. 17
    Academic Journal
    Higher order approximations for fractional order integro-parabolic partial differential equations on an adaptive mesh with error analysis

    المؤلفون: Santra, Sudarshan, Mohapatra, Jugal, Das, Pratibhamoy, Choudhuri, Debajyoti

    المساهمون: Science and Engineering Research Board

    المصدر: Computers & Mathematics with Applications ; volume 150, page 87-101 ; ISSN 0898-1221

    الاتاحة: http://dx.doi.org/10.1016/j.camwa.2023.09.008
    https://api.elsevier.com/content/article/PII:S0898122123003930?httpAccept=text/xml
    https://api.elsevier.com/content/article/PII:S0898122123003930?httpAccept=text/plain

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  18. 18
    Academic Journal
    A higher order difference method for singularly perturbed parabolic partial differential equations

    المؤلفون: Das, Pratibhamoy

    المصدر: Journal of Difference Equations and Applications ; volume 24, issue 3, page 452-477 ; ISSN 1023-6198 1563-5120

    الاتاحة: http://dx.doi.org/10.1080/10236198.2017.1420792
    https://www.tandfonline.com/doi/pdf/10.1080/10236198.2017.1420792

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  19. 19
    Academic Journal
    A moving mesh refinement based optimal accurate uniformly convergent computational method for a parabolic system of boundary layer originated reaction–diffusion problems with arbitrary small diffusion terms

    المؤلفون: Shakti, Deepti, Mohapatra, Jugal, Das, Pratibhamoy, Vigo-Aguiar, Jesus

    المساهمون: Department of Science and Technology, Ministry of Science and Technology, India, Science and Engineering Research Board

    المصدر: Journal of Computational and Applied Mathematics ; volume 404, page 113167 ; ISSN 0377-0427

    الاتاحة: http://dx.doi.org/10.1016/j.cam.2020.113167
    https://api.elsevier.com/content/article/PII:S0377042720304581?httpAccept=text/xml
    https://api.elsevier.com/content/article/PII:S0377042720304581?httpAccept=text/plain

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  20. 20
    Academic Journal
    Numerical solution of singularly perturbed convection-diffusion-reaction problems with two small parameters

    المؤلفون: Das, Pratibhamoy, Mehrmann, Volker

    مصطلحات موضوعية: 518 Numerische Analysis, parabolic partial differential equation, convection-diffusion-reaction problem, adaptive mesh, moving mesh method, mesh equidistribution, singularly perturbed problem, upwind scheme, uniform convergence

    وصف الملف: application/pdf

    Relation: https://depositonce.tu-berlin.de/handle/11303/5238; http://dx.doi.org/10.14279/depositonce-4932

    الاتاحة: https://depositonce.tu-berlin.de/handle/11303/5238
    https://doi.org/10.14279/depositonce-4932

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