


Name and Family


Degree 

Academic Degree 

Department


Email:


Website




  Academic Education/Training (4) 
 
 1Doctor of Philosophy, 2009, Applied Mathematics (Numerical Analysis),Iran University of Science & Technology.  
 2Sabbatical Leave, 2009,National Institute of Informatics, Tokyo, Japan.  
 3Master of Science, 2000, Applied Mathematics (Numerical Analysis),Iran University of Science & Technology.  
 4Bachelor of Science, 1997, Mathematics,University of Tabriz. 
   Journal Articles (15) 
 
 1L. Allahyari , S. Sohrabi , E. Najafi, A new image watermarking scheme using contourlet transform, singular values and chaos, (In Persian) Journal of Machine Vision and Image Processing, (Accepted)
.  
 2S. Sohrabi, H. Ranjbar, 2019, On Sinc Discretization for Systems of Volterra IntegralAlgebraic Equations,Applied Mathematics & Computation, 346, 193–204 (ISIQ1). [Citation]  
 3S. Sohrabi, H. Ranjbar, M. Saei, 2017, Convergence analysis of the Jacobicollocation method for nonlinear weakly singular Volterra integral equations,Applied Mathematics & Computation, 299, 141–152 (ISIQ1). [Citation]  
 4S. Sohrabi, 2013, Study on Convergence of Hybrid Functions Method for Solution of Nonlinear Integral Equations,Applicable Analysis, 92(4), 690702 (ISIQ2)..  
 5S. Sohrabi, 2012, An efficient spectral method for high order nonlinear integrodifferential equations,U.P.B. Sci. Bull., Series A, 74 (3), 7588 (ISIQ3)..  
 6H. Derili, S. Sohrabi and A. Arzhang, 2012, Two Dimensional Wavelets for Numerical Solution of Integral Equations,Mathematical Science , 6 (5), 14 (ISC).  
 7S. Sohrabi, 2011 , Comparison Chebyshev Wavelets Method with BPFs Method for Solving Abels Integral Equation,Ain Shams Engineering Journal, 2 (34), 249254 (ScopusQ1)..  
 8K. Maleknejad, S. Sohrabi and B. Baranji, 2010, Application of 2DBPFs to Nonlinear Integral Equations,Communications in Nonlinear Science and Numerical Simulation, 15, 527 535 (ISI).  
 9K. Maleknejad, S. Sohrabi and H. Derili, 2010, A New Computational Method for Solution of Nonlinear VolterraFredholm IntegroDifferential Equations,International Journal of Computer Mathematics, 87 (2), 327338 (ISI).  
 10K. Maleknejad, H. Derili and S. Sohrabi, 2010, The Discrete Collocation Method for Weakly Singular Urysohn Equations,International Journal of Computer Mathematics, 87 (2), 404413 (ISI).  
 11K. Maleknejad, S. Sohrabi, 2009, Legendre Polynomial Solution of Nonlinear VolterraFredholm Integarl Equations,IUST International Journal of Engineering Science, 52, (19) (ISC).  
 12K. Maleknejad, H. Derili and S. Sohrabi, 2008, Numerical Solution of Urysohn Integral Equations Using the Iterated Collocation Method,International Journal of Computer Mathematics, 85, 143154 (ISI).  
 13K. Maleknejad, S. Sohrabi and Y. Rostami, 2008, Application of Wavelet Transform Analysis in Medical Frames Compression,Kybernetes, 37 (2), 343351 (ISI).  
 14K. Maleknejad, S. Sohrabi and Y. Rostami, 2007, Numerical Solution of Nonlinear Volterra Integral Equations of the Second Kind by Using Chebyshev Polynomials,Applied Mathematics & Computation, 188, 123–128 (ISI).  
 15K. Maleknejad and S. Sohrabi, 2007, Numerical Solution of Fredholm Integral Equations of the First Kind by Using Legendre Wavelets,Applied Mathematics & Computation, 186, 836843 (ISI). 
   Conference Papers/Abstracts/Posters (19) 
 
 1R. Azimi and S. Sohrabi, Error analysis of a spectralcollocation method for systems of Volterra integral equations, 49th Annual Iranian Mathematics Conference, 23 – 26 August 2018, Iran University of Science and Technology, Tehran, Iran
.  
 2S. Gorgani, S. Sohrabi and J. Shokri, Convergence analysis of a quadrature method for solution of nonlinear Hammerstein fuzzy integral equations, 48th Annual Iranian Mathematics Conference, 22 – 25 August 2017, Hamedan, Iran
.  
 3S. Sohrabi, H. Ranjbar, An accurate waveletcollocation method for integral algebraic equations of index3, 47th Annual Iranian Mathematics Conference, 28 – 31 August 2016, Karaj, Iran.  
 4S. Sohrabi, H. Ranjbar, Numerical Solutions for the System of Volterra Integral Equations with Variable Coefficients Using Wavelets, The 6th Seminar on Numerical Analysis and Its Applications, 2021 July 2016, Maragheh, Iran.  
 5S. Sohrabi, L. Allahyari, Security images using watermarking based on Contourlet, 3rd National Industrial Mathematics Conference, 26 May 2016, Tabriz, Iran.  
 6S. Sohrabi, H. Ranjbar, Numerical solution of weakly singular integral algebraic equations of index1 using Legendre spectralcollocation method, The 7th National Conference on Mathematics of Payame Noor University, 2829 October 2015, Tabriz, Iran.  
 7S. Sohrabi, H. Ranjbar, Shifted Chebyshev polynomials solution for a class of VolterraFredholm integral equations, The 7th National Conference on Mathematics of Payame Noor University, 2829 October 2015, Tabriz, Iran.  
 8S. Sohrabi, Error Bound of Hybrid Functions Method for Solution of Nonlinear Integral Equations, 5th Iranian Conference on Applied Mathematics, 8 10 September 2013, Hamedan, Iran
.  
 9K. Maleknejad, H. Beiglo and S. Sohrabi, Periodic QuasiWavelets for Nonlinear Integral Equations, 41th Annual Iranian Mathematics Conference, 12 15 September 2010, Urmia, Iran.  
 10S. Sohrabi, H. Derili and B. Baranji, Numerical Solution of TwoDimensional Integral Equations Using Haar Wavelets, 41th Annual Iranian Mathematics Conference, 12 15 September 2010, Urmia, Iran.  
 11K. Maleknejad, S. Sohrabi and H. Beiglo, PQWs method for Fredholm integral equations with convolution kernel in complex plane, 4th Iranian Conference on Applied Mathematics, 10 12 March 2010, Zahedan, Iran.  
 12S. Sohrabi and K. Maleknejad, An Approximation Method for the Solution of Nonlinear VolterraFredholm Integral Equations, 38th Numerical Analysis Symposium (NAS2009), 1517 June 2009, Atagawa, Japan
.  
 13K. Maleknejad, S. Sohrabi and B. Baranji, TwoDimensional PCBFs : Application to Nonlinear Volterra Integral Equations, World Congress on Engineering (WCE2009), 1 3 July, 2009, London, U. K.  
 14K. Maleknejad, S. Sohrabi and K. Nedaiasl, The Galerkin and Discrete Galerkin Methods for Urysohn Integral Equation, 40th Annual Iranian Mathematics Conference, 17 20 August 2009, Sharif University, Tehran, Iran
.  
 15K. Maleknejad and S. Sohrabi, Numerical Solution of Nonlinear Fredholm Integral Equations by Using the Iterated Collocation Method, World Conference on Nonlinear Analysis (WCNA2008), 2008, USA
.  
 16K. Maleknejad , S. Sohrabi and N. Ebrahimi, A Direct Method for Solving Nonlinear TwoDimensional Volterra Integral Equation Using PCOFs, 39th Annual Iranian Mathematics Conference, 2427 August 2008, Shahid Bahonar University, Kerman, Iran
.  
 17K. Maleknejad , S. Sohrabi and M. Nosrati, Computational Method of Moments for the Solution of Second Kind Fredholm Integral Equations Using BSpline Wavelets, 38th Annual Iranian Mathematics Conference, 36 September, 2007, University of Zanjan, Zanjan, Iran
.  
 18K. Maleknejad and S. Sohrabi, Numerical Method For Solution of Volterra Integral Equations Via A NonPolynominal Interpolation, 37th Annual Iranian Mathematics Conference, 25 September, 2006, University of Shahid Madani, Tabriz, Iran
.  
 19K. Maleknejad and S. Sohrabi, An Algorithm For Nonlinear Inverse Problem, 7th Seminar on Differential Equations and Dynamical Systems, 911 November 2005, Tabriz University, Tabriz, Iran
. 
   Books (1) 
 
 1Saeed Sohrabi, 2013, Ordinary Differential Equations (In Persian),Urmia University Press. 
   Research Projects (5) 
 
 1 1394, Convergence analysis of spectralcollocation methods for a class of weakly singular Volterra integral equations
.  
 2 1390, Comparison Chebyshev wavelets method with blockpulse functions method for numerical solution of Abels integral equations.  
 3 1392, An efficient spectral method for nonlinear integrodifferential equations .  
 4 1392, Error bound of hybrid functions method for solution of nonlinear integral equations.  
 5 1390, Numerical solution of twodimensional integral equations using haar wavelets. 




Name and Family

s.sohrabi

Academic Degree

Associate Professor

Department

Department of Mathematics

Email:

s.sohrabi@urmia.ac.ir
Research and Education Resume

  Academic Education/Training (4) 
 
 1Doctor of Philosophy, 2009, Applied Mathematics (Numerical Analysis),Iran University of Science & Technology.  
 2Sabbatical Leave, 2009,National Institute of Informatics, Tokyo, Japan.  
 3Master of Science, 2000, Applied Mathematics (Numerical Analysis),Iran University of Science & Technology.  
 4Bachelor of Science, 1997, Mathematics,University of Tabriz. 
   Journal Articles (15) 
 
 1L. Allahyari , S. Sohrabi , E. Najafi, A new image watermarking scheme using contourlet transform, singular values and chaos, (In Persian) Journal of Machine Vision and Image Processing, (Accepted)
.  
 2S. Sohrabi, H. Ranjbar, 2019, On Sinc Discretization for Systems of Volterra IntegralAlgebraic Equations,Applied Mathematics & Computation, 346, 193–204 (ISIQ1).  
 3S. Sohrabi, H. Ranjbar, M. Saei, 2017, Convergence analysis of the Jacobicollocation method for nonlinear weakly singular Volterra integral equations,Applied Mathematics & Computation, 299, 141–152 (ISIQ1).  
 4S. Sohrabi, 2013, Study on Convergence of Hybrid Functions Method for Solution of Nonlinear Integral Equations,Applicable Analysis, 92(4), 690702 (ISIQ2)..  
 5S. Sohrabi, 2012, An efficient spectral method for high order nonlinear integrodifferential equations,U.P.B. Sci. Bull., Series A, 74 (3), 7588 (ISIQ3)..  
 6H. Derili, S. Sohrabi and A. Arzhang, 2012, Two Dimensional Wavelets for Numerical Solution of Integral Equations,Mathematical Science , 6 (5), 14 (ISC).  
 7S. Sohrabi, 2011 , Comparison Chebyshev Wavelets Method with BPFs Method for Solving Abels Integral Equation,Ain Shams Engineering Journal, 2 (34), 249254 (ScopusQ1)..  
 8K. Maleknejad, S. Sohrabi and B. Baranji, 2010, Application of 2DBPFs to Nonlinear Integral Equations,Communications in Nonlinear Science and Numerical Simulation, 15, 527 535 (ISI).  
 9K. Maleknejad, S. Sohrabi and H. Derili, 2010, A New Computational Method for Solution of Nonlinear VolterraFredholm IntegroDifferential Equations,International Journal of Computer Mathematics, 87 (2), 327338 (ISI).  
 10K. Maleknejad, H. Derili and S. Sohrabi, 2010, The Discrete Collocation Method for Weakly Singular Urysohn Equations,International Journal of Computer Mathematics, 87 (2), 404413 (ISI).  
 11K. Maleknejad, S. Sohrabi, 2009, Legendre Polynomial Solution of Nonlinear VolterraFredholm Integarl Equations,IUST International Journal of Engineering Science, 52, (19) (ISC).  
 12K. Maleknejad, H. Derili and S. Sohrabi, 2008, Numerical Solution of Urysohn Integral Equations Using the Iterated Collocation Method,International Journal of Computer Mathematics, 85, 143154 (ISI).  
 13K. Maleknejad, S. Sohrabi and Y. Rostami, 2008, Application of Wavelet Transform Analysis in Medical Frames Compression,Kybernetes, 37 (2), 343351 (ISI).  
 14K. Maleknejad, S. Sohrabi and Y. Rostami, 2007, Numerical Solution of Nonlinear Volterra Integral Equations of the Second Kind by Using Chebyshev Polynomials,Applied Mathematics & Computation, 188, 123–128 (ISI).  
 15K. Maleknejad and S. Sohrabi, 2007, Numerical Solution of Fredholm Integral Equations of the First Kind by Using Legendre Wavelets,Applied Mathematics & Computation, 186, 836843 (ISI). 
   Conference Papers/Abstracts/Posters (19) 
 
 1R. Azimi and S. Sohrabi, Error analysis of a spectralcollocation method for systems of Volterra integral equations, 49th Annual Iranian Mathematics Conference, 23 – 26 August 2018, Iran University of Science and Technology, Tehran, Iran
.  
 2S. Gorgani, S. Sohrabi and J. Shokri, Convergence analysis of a quadrature method for solution of nonlinear Hammerstein fuzzy integral equations, 48th Annual Iranian Mathematics Conference, 22 – 25 August 2017, Hamedan, Iran
.  
 3S. Sohrabi, H. Ranjbar, An accurate waveletcollocation method for integral algebraic equations of index3, 47th Annual Iranian Mathematics Conference, 28 – 31 August 2016, Karaj, Iran.  
 4S. Sohrabi, H. Ranjbar, Numerical Solutions for the System of Volterra Integral Equations with Variable Coefficients Using Wavelets, The 6th Seminar on Numerical Analysis and Its Applications, 2021 July 2016, Maragheh, Iran.  
 5S. Sohrabi, L. Allahyari, Security images using watermarking based on Contourlet, 3rd National Industrial Mathematics Conference, 26 May 2016, Tabriz, Iran.  
 6S. Sohrabi, H. Ranjbar, Numerical solution of weakly singular integral algebraic equations of index1 using Legendre spectralcollocation method, The 7th National Conference on Mathematics of Payame Noor University, 2829 October 2015, Tabriz, Iran.  
 7S. Sohrabi, H. Ranjbar, Shifted Chebyshev polynomials solution for a class of VolterraFredholm integral equations, The 7th National Conference on Mathematics of Payame Noor University, 2829 October 2015, Tabriz, Iran.  
 8S. Sohrabi, Error Bound of Hybrid Functions Method for Solution of Nonlinear Integral Equations, 5th Iranian Conference on Applied Mathematics, 8 10 September 2013, Hamedan, Iran
.  
 9K. Maleknejad, H. Beiglo and S. Sohrabi, Periodic QuasiWavelets for Nonlinear Integral Equations, 41th Annual Iranian Mathematics Conference, 12 15 September 2010, Urmia, Iran.  
 10S. Sohrabi, H. Derili and B. Baranji, Numerical Solution of TwoDimensional Integral Equations Using Haar Wavelets, 41th Annual Iranian Mathematics Conference, 12 15 September 2010, Urmia, Iran.  
 11K. Maleknejad, S. Sohrabi and H. Beiglo, PQWs method for Fredholm integral equations with convolution kernel in complex plane, 4th Iranian Conference on Applied Mathematics, 10 12 March 2010, Zahedan, Iran.  
 12S. Sohrabi and K. Maleknejad, An Approximation Method for the Solution of Nonlinear VolterraFredholm Integral Equations, 38th Numerical Analysis Symposium (NAS2009), 1517 June 2009, Atagawa, Japan
.  
 13K. Maleknejad, S. Sohrabi and B. Baranji, TwoDimensional PCBFs : Application to Nonlinear Volterra Integral Equations, World Congress on Engineering (WCE2009), 1 3 July, 2009, London, U. K.  
 14K. Maleknejad, S. Sohrabi and K. Nedaiasl, The Galerkin and Discrete Galerkin Methods for Urysohn Integral Equation, 40th Annual Iranian Mathematics Conference, 17 20 August 2009, Sharif University, Tehran, Iran
.  
 15K. Maleknejad and S. Sohrabi, Numerical Solution of Nonlinear Fredholm Integral Equations by Using the Iterated Collocation Method, World Conference on Nonlinear Analysis (WCNA2008), 2008, USA
.  
 16K. Maleknejad , S. Sohrabi and N. Ebrahimi, A Direct Method for Solving Nonlinear TwoDimensional Volterra Integral Equation Using PCOFs, 39th Annual Iranian Mathematics Conference, 2427 August 2008, Shahid Bahonar University, Kerman, Iran
.  
 17K. Maleknejad , S. Sohrabi and M. Nosrati, Computational Method of Moments for the Solution of Second Kind Fredholm Integral Equations Using BSpline Wavelets, 38th Annual Iranian Mathematics Conference, 36 September, 2007, University of Zanjan, Zanjan, Iran
.  
 18K. Maleknejad and S. Sohrabi, Numerical Method For Solution of Volterra Integral Equations Via A NonPolynominal Interpolation, 37th Annual Iranian Mathematics Conference, 25 September, 2006, University of Shahid Madani, Tabriz, Iran
.  
 19K. Maleknejad and S. Sohrabi, An Algorithm For Nonlinear Inverse Problem, 7th Seminar on Differential Equations and Dynamical Systems, 911 November 2005, Tabriz University, Tabriz, Iran
. 
   Books (1) 
 
 1Saeed Sohrabi, 2013, Ordinary Differential Equations (In Persian),Urmia University Press. 
   Research Projects (5) 
 
 1 1394, Convergence analysis of spectralcollocation methods for a class of weakly singular Volterra integral equations
.  
 2 1390, Comparison Chebyshev wavelets method with blockpulse functions method for numerical solution of Abels integral equations.  
 3 1392, An efficient spectral method for nonlinear integrodifferential equations .  
 4 1392, Error bound of hybrid functions method for solution of nonlinear integral equations.  
 5 1390, Numerical solution of twodimensional integral equations using haar wavelets. 

