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حمید رضا افشین
نام و نام خانوادگی : حمید رضا افشین
پست الکترونیک : afshin@vru.ac.ir
سمت : دانشیار گروه ریاضی
بیوگرافی : حمیدرضا افشین متولد 1340/09/01- بیرجند
سوابق تحصیلی
  • کارشناسی: دانشگاه صنعتی شریف - 1367
  • کارشناسی ارشد:دانشگاه شهیدباهنر کرمان - 1374
  • دکتری:دانشگاه شهیدباهنر کرمان-1382
سوابق اجرایی
  • مدیر گروه ریاضی-1382
  • رئیس دانشکده ی علوم-1384
  • مدیر تحصیلات تکمیلی دانشگاه - 1388
  • رئیس دانشکده ی علوم ریاضی-1392-1390
  • جوایز و افتخارات
  • پژوهشگر برتر دانشکده
  • مدرس برتر گروه ریاضی
Education
  • Diploma in Mathematics and Physics: Kharazmi High School, Iran, 1987.
  • B.Sc. (Applied mathematics): Sharif University of Technology, Tehran, Iran, 1989.
  • M.Sc. (Mathematical analysis): Shahid Bahonar University of Kerman, Kerman, Iran, 1997.
  • Ph.D. (Operator theory): Shahid Bahonar University of Kerman, Kerman Iran, 2003. (Advisor: Professor Abbas Salemi)

Full list of Scientific Publications

(i) Original Research Articles


1- A. Salemi and H.R. Afshin, Quadratic numerical range of block operator matrices, Far East Journal of Mathematical Sciences, Volume 10, Issue 1, pp. 99-103, July 2003. (Abstract ; Journal link)
 

2- H.R. Afshin and A. Salemi, Shell of quadratic numerical range, Far East Journal of Mathematical Sciences, Volume 12, Issue 1, pp. 83-87, January 2004. (Abstract ; Journal link)
 

3- H.R. Afshin, M.A. Mehrjoofard and A. Salami, Polynomial numerical hulls of order 3, Electronic Journal of Linear Algebra, Volume 18, pp. 253-263, May 2009. (Source files ; PDF Link 1 ; PDF Link 2)
 

4- A. Armandnejad and H.R. Afshin, Linear functions preserving multivariate and directional majorization, Iranian Journal of Mathematical Sciences and Informatics, Volume 5, Number 1, pp. 1-5, 2010. (PDF Link 1 ; PDF Link 2)
 

5- H.R. Afshin and M.A. Mehrjoofard, On the polynomial numerical hull of a normal matrix, Banach Journal of Mathematical Analysis, Volume 5, Number 1, pp. 88-93, 2011. (Source file ; PDF Link 1 ; PDF Link 2)
 

6- H.R. Afshin, M.A. Mehrjoofard, and A. Salami, Polynomial inverse images and polynomial numerical hulls of normal matrices, Operators and matrices, Volume 5, Number 1, pp. 89-96, 2011. (Source files ; PDF ; Journal link)
 

7-H.R. Afshin and M.A. Ranjbar, On the Decomposition of Hilbert Spaces, Iranian Journal of Mathematical Sciences and Informatics, Volume 6, Number 2, pp. 1-7, 2011. (PDF Link 1 ; PDF Link 2)
 

8- H.R. Afshin and M. Naderi Parizi, Linear preserves of chain majorization, Lobachevskii Journal of Mathematics, Volume 32, Issue 4, pp. 334-336, 2011. (PDF Link 1 ; PDF Link 2)
 

9- A. Askarizadeh, M.A. Dehghan, and H. Afshin, B(K)-Linear Operators and their Operator-Valued Spectrum, University Politehnica of Bucharest Scientific Bulletin-Series A-Applied Mathematics and Physics, Volume 73, Number 4, pp. 79-88, 2011. (PDF Link 1 ; PDF Link 2)
 

10- H.R. Afshin, H. Izadi, and M.A. Mehrjoofard, Generalized Higher-rank Numerical Range, Journal of Mahani Mathematical Research Center, Volume 1, Number 2, pp. 163-168, 2012. (Source file ; PDF Link 1 ; PDF Link 2)
 

11- H.R. Afshin, M.A. Mehrjoofard and A. Salemi, Some results on the polynomial numerical hulls of matrices, Bulletin of the Iranian Mathematical Society, Volume 39, Number 3, pp. 569-578, 2013. (Source files ; PDF Link 1 ; PDF Link 2)
 

12- H.R. Afshin and M.A. Mehrjoofard, Polynomial numerical hulls of some normal matrices, Linear Algebra and its Applications, Volume 439, Number 8, pp. 2453-2467, 2013. (Source files ;  PDF ; Journal link)
 

13-M. Zangiabadi and H. R. Afshin, A new concept for numerical radius: the sign-real numerical radius, Politehn. Univ. Bucharest Sci. Bull. Ser. A Appl. Math. Phys.
 

14-M. Zangiabadi and H. R. Afshin,PERRON-FROBENIUS THEORY ON THE NUMERICAL RANGE FOR SOME CLASSES OF REAL MATRICES, JOURNAL OF MAHANI MATHEMATICAL RESEARCH CENTER, VOL. 2, NUMBER 2 (2013) 1-15.
 

15-H.R. Afshin and A. R. Shojaeifard, A max version of perron-frobenius theorem
for nonnegative tensor, Ann. Funct. Anal. 6 (2015), no. 3, 145–154.

 

16-H.R. Afshin and A. R. Shojaeifard, Max-Plus Algebra on tensors and its properties, Wavelets and Linear Algebra, (2015). To appear
 

17- H.R. Afshin, S. Bagheri, and M.A. Mehrjoofard, Generalized joint higher-rank numerical range (PDF)
 
 

(ii) Proceeding papers

  • H.R. Afshin, M.A. Mehrjoofard, and A. Zare, Pauli matrices: Classification and Joint higher rank numerical range. Submitted.
  • H.R. Afshin and A. R. Shojaeifard, The sign real spectral radius for real tensors‎, ‎Submitted.
  • H.R. Afshin and A. R. Shojaeifard, Some characterization of the sign real spectral radius of real tensors, Submitted.
  • H.R. Afshin and A. R. Shojaeifard, New inclusion sets for the Eigenvalues of Stochastic Tensors‎,Submitted.
  • H.R. Afshin and A. R. Shojaeifard, On some properties of the tensor in max algebra, ‎Submitted.
 

(iii) Conference Articles


1- (Joint work with Abbas Salemi) On polynomial numerical Hull of matrices, The 7th Workshop on Numerical Ranges and Numerical Radii, University of Coimbra, Portugal, July 16-17 (Friday - Saturday), 2004.
 

2- (Joint work with Abbas Salemi) On polynomial numerical Hull of order3, 13-th ILAS Conference, Amsterdam, Netherlands, 18-21 July 2006.
 

3- (Joint work with Asma Rezaie), Linear Maps Preserving Row Stochastic and Row Substochastic Matrices, 17th Seminar of Mathematical Analysis and its Applications, Arak University, 24-25 April 2008.
 

4- (Joint work with Mohammad Ali Mehrjoofard), Polynomial numerical hulls of order 3, The 5th Seminar on Linear Algebra and its Applications, Babolsar, Iran, 28-30 October 2009.
 

5- (Joint work with M. Naderi Parizi), Linear Preserves of Chain Majorization, The 5th Seminar on Linear Algebra and its Applications, Babolsar, Iran, 28-30 October 2009.
 

6- (Joint work with Abbas Salemi and Mohammad Ali Mehrjoofard), K-hyperbolas and polynomial numerical hulls of normal matrices, 16th Conference of the International Linear Algebra Society, Pisa, Italy, 21- 25 June 2010.
 

7- (Joint work with Hadis Izadi and Mohammad Ali Mehrjoofard), Generalized higher-rank numerical range, The 19th Seminar of Mathematical Analysis and its Applications, 19-20 February 2011.
 

8- (Joint work with Sedigheh Bagheri and Mohammad Ali Mehrjoofard), Generalized joint higher-rank numerical range, The 19th Seminar of Mathematical Analysis and its Applications, 19-20 February 2011.
 

9- (Joint work with Akbar Zare Chavoshi and  Mohammad Ali Mehrjoofard), Joint higher rank numerical range of some Pauli matrices, Sixth International Seminar on Linear Algebra & It’s Applications, Arak University, 8-9 June 2011.
 

10- (Joint work with Mohammad Ali Mehrjoofard), Some notes on polynomial numerical hull of order 3, 42nd Annual Iranian Mathematics Conference, Vali-e-Asr University of Rafsanjan, Iran, 5-8 September 2011.
 

11- (Joint work with Mostafa Zangiabadi and Ali Reza Shojaeifard), A note on the sign-real spectral radius, 42nd Annual Iranian Mathematics Conference, Vali-e-Asr University of Rafsanjan, Iran, 5-8 September 2011.
 

12- (Joint work with Mohammad Ali Mehrjoofard), Joint Numerical Range of three Pauli Matrices, The 44th Annual Iranian Mathematics Conference, Faculty of Mathematical Sciences, Ferdowsi University of Mashhad, 27-30 August 2013.
 

13- (Joint work with Mostafa Zangiabadi), Perron-Frobenius type results on the block numerical range, The 44th Annual Iranian Mathematics Conference, Faculty of Mathematical Sciences, Ferdowsi University of Mashhad, 27-30 August 2013.
 

14- H.R. Afshin and A. R. Shojaeifard, Some characterizations of the sign real spectral radius‎, ‎The 45th Annual Iranian Mathematics Conference‎, ‎semnan‎,  August 26-29‎, ‎2014‎.

 


15- H.R. Afshin and A. R. Shojaeifard, On the Perron Frobenius theorem of real tensors‎, ‎The 45th Annual Iranian Mathematics Conference‎, ‎,semnan,‎ ‎August‎ 26-29‎, ‎2014‎. ‎


16- H.R. Afshin and A. R. Shojaeifard, A max version of the Perron-Frobenius theorem for nonnegative tensors‎, ‎The 5th Seminar of Numerical Analysis and‎ its Applications‎, ‎9-10th Sep‎. ‎2014‎, ‎Vali-e-Asr University of Rafsanjan‎, ‎Rafsanjan‎, ‎Iran‎.

 


17- H.R. Afshin and A. R. Shojaeifard, The inverse of higher order tensors in the max-algebra sense‎, The 8th Seminar on Linear Algebra and its Applications 13-14th May 2015, University of Kurdistan, Iran.

 


18- H.R. Afshin and A. R. Shojaeifard, The max plus algebra on higher order tensor, The 8th Seminar on Linear Algebra and its Applications 13-14th May 2015, University of Kurdistan, Iran.
 


Some Interesting Documents:
  • Numerical Range and Radii (Scientists, Journals, Countries, Grants and some open problems) (PowerPoint)
  • Determinants (PowerPoint)
  • Math Dictionary (Download)

Where are my PhD graduates/students:
  • Ali Reza Shojaeifard (Ph.D. in Mathematical Analysis, 2015).
  • Mohammad Ali Mehrjoofard (Ph.D. in Mathematical Analysis, 2014: Thesis Source, Thesis PDF), Postdoc at Shahid Bahonar University of Kerman, Iran.
  • Mostafa Zangiabadi (Ph.D. in Mathematical Analysis, 2013), Assistant Professor, Hormozgan University, Hormozgan, Iran.

M.Sc. Student Supervision
  • Seyed Amir Hosseini (2015)
  • Leila Mohseni (2014)
  • Raziyeh  rohalamini (2014)
  • Fateme Rafiei (2014)
  • Haj Mohammadi (2013)
  • Afshar (2013)
  • Ali Abdollahi (December 2012).
  • Marziyeh Shojaie (March 2012)
  • Somayeh Shojaee (March 2012)
  • Elham Abbasi Hafshejani (October 2011).
  • Ali Reza Shojaeifard (September 2011).
  • Sedigheh Bagheri (March 2011).
  • Hadis Izadi Yazdan Abadi (February 2011).
  • Roghayeh Yousefi Rabori (October 2010)
  • Fatemeh Sohrabi Zarandi (March 2010).
  • Somaiyeh Kazempour (February 2010)
  • Mohammad Ali Ranjbar (March 2009).
  • Mohammad Ali Mehrjoofard (November 2008).
  • Asma Rezaie (January 2008).
  • Mostafa Zangiabadi (August 2007).
  • A. Javadi (October 2006).
  • Maryam Jafari Najafi (April 2006)

6.5/10 (تعداد آرا 33 نفر )


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