Dr. Sasmita Barik

Associate Professor

School of Basic Sciences

Office : 334, SBS Building

Phone : 0674-7135142

Email : sasmita AT iitbbs DOT ac DOT in

Education

Degree	Discipline	Year	School
Ph.D.	Mathematics	2007	Indian Institute of Technology Guwahati

Research Interests

Combinatorial Matrix Theory; Graph Theory

Teaching

Spring 2020: Mathematics II (MA1L002: B.Tech 1st Semester), Numerical Analysis (MA5L010: M.Sc. 1st Semester).

Publications

Journals

1Sasmita Barik, Tarakanta Nayak and Ankit Pradhan, Graphs whose independence fractals are line segments, Bulletin of the Malaysian Mathematical Sciences Society, https://doi.org/10.1007/s40840-020-00936-5, (2020).

2Sonu Rani and Sasmita Barik, On alternating paths and the smallest positive eigenvalue of trees, Journal of Combinatorial Optimization, 39(2), 589-601, (2020).

3Sasmita Barik and Gopinath Sahoo, A new matrix representation of multidigraphs, AKCE International Journal of Graphs and Combinatorics, https://doi.org/10.1016/j.akcej.2019.07.002, (2019).

4Sasmita Barik, Debajit Kalita, Sukanta Pati, and Gopinath Sahoo, Spectra of graphs resulting from various graph operations and products: a survey, Special Matrices, 6: 323-342, (2018).

5Sasmita Barik, Sonu Rani and Gopinath Sahoo, On the distance spectra and the distance Laplacian spectra of graphs with pockets, Bull. Kerala Math. Assoc., 16: 1-12, (2018).

6Sasmita Barik and Gopinath Sahoo, Results on Laplacian spectra of graphs with pockets, AKCE International Journal of Graphs and Combinatorics, 15: 79-87, (2018).

7Sasmita Barik and Gopinath Sahoo, Some results on the Laplacian spectra of graphs with pockets, Electronic Notes in Discrete Mathematics, 63: 219-228, (2017).

8Sasmita Barik and Gopinath Sahoo, On the distance spectra of coronas, Linear and Multilinear Algebra, 65(8): 1617-1628, (2017).

9Sasmita Barik and Gopinath Sahoo, On the Laplacian spectra of some variants of corona, Linear Algebra and its Applications, 512: 32-47, (2017).

10Sasmita Barik, Ravindra B. Bapat, Sukanta Pati, On the Laplacian spectra of product graphs, Applicable Analysis and Discrete Mathematics, 9: 39–58, (2015).

11Sasmita Barik, Shaun M. Fallat, and Steve Kirkland, On Hadamard diagonalizable graphs, Linear Algebra and its Applications, 435: 1885–1902, (2011).

12Sasmita Barik, On the Laplacian spectra of graphs with pockets, Linear and Multilinear Algebra, 56(5): 481-490, (2008).

13Sasmita Barik, Arbind K. Lal, and Sukanta Pati, On trees with Laplacian eigenvalue one, Linear and Multilinear Algebra, 56(6): 597-610, (2008).

14Sasmita Barik, Milan Nath, Bhaba K. Sarma, and Sukanta Pati, Unicyclic graphs with a strong reciprocal eigenvalue property, Electronic Journal of Linear Algebra, 17:139-153, (2008).

15Sasmita Barik, Bhaba K. Sarma, and Sukanta Pati, The spectrum of the corona of two graphs, SIAM Journal on Discrete Mathematics, 21(1):47-56, (2007).

16Sasmita Barik, M. Neumann, and Sukanta Pati, On nonsingular trees and a reciprocal eigenvalue property, Linear and Multilinear Algebra, 54(6):453-465, (2006).

17Sasmita Barik and Sukanta Pati, On algebraic connectivity and spectral integral variations of graphs, Linear Algebra and its Applications, 397:209-222, (2005).

Conferences

1S. Barik, A new matrix representation of multidigraphs, 42nd Australasian Conference on Combinatorial Mathematics and Combinatorial Computing, UNSW Sydney, December 9-13, 2019.

2S. Barik, A new matrix representation of multidigraphs, International Conference on Discrete Mathematics (ICDM-2018), Tiruchirappalli, India, December 14-17, 2018.

3S. Barik and G. Sahoo, On the spectra of bipartite multidigraphs, International Cogress of Mathematicians (ICM-2018), Rio de Janeiro, Brazil, August 1-9, 2018.

4S. Barik and G. Sahoo, On the spectra of bipartite multidigraphs, Mini-Symposium on The Nonnegative Inverse Eigenvalue Problem in International Linear Algebra Society (ILAS) 2017 Meeting: Connections, Iowa State University, Ames, USA, July 24-28, 2017.

5S. Barik, On graphs with simply structured Laplacian eigenvectors, International Conference on Graph Theory and its Applications (ICGTA-2015), Amrita University, Coimbatore, India, December 16-19, 2015.

6S. Barik, R. B. Bapat and S. Pati, Algebraic connectivity and characteristic set of product graphs, International Conference on Linear Algebra and Applications, Manipal University, Mangalore, December 18-20, 2014.

7S. Barik, R. B. Bapat and S. Pati, On the Laplacian spectra of product graphs, International Congress of Mathematicians (ICM-2014), Seoul, Korea, August 13-21, 2014.

8S. Barik, On graph products and the resulting Laplacian spectra, Western Canada Linear Algebra Meeting, Manitoba, Canada, May 30-31, 2008.

Academic Honors & Awards

ICM Travel Grant-2018 from National Board for Higher Mathematics, 2018
Postdoctoral Fellowship from University of Regina, Saskatchewan, Canada, 2008
Postdoctoral Fellowship from Indian Statistical Institute, India, 2007
Qualified JRF (with NET), in Mathematical Sciences by CSIR, India, 2002
Qualified GATE in Mathematical Sciences, 2002
University First Rank Holder and the GOLD MEDALIST in Masters Degree, Utkal University, Bhaubaneswar, India, 2001
University Fourth Rank Holder in Bachelors Degree, Utkal University, Bhaubaneswar, India, 1999

Degree awarded - 1, Continuing - 4

Professional Experience

Associate Professor, Indian Institute of Technology Bhubaneswar, Oct 2018 - Continuing
Assistant Professor, Indian Institute of Technology Bhubaneswar, Feb 2012 - Oct 2018
Assistant Professor, Institute of Mathematics and Applications, Bhubaneswar, Jan 2009 - Feb 2012
Postdoctoral Fellow, University of Regina, Canada, Jan - Dec 2008
Postdoctoral Fellow, Indian Statistical Institute Delhi, Feb - Dec 2007

My mentors

Prof. Sukanta Pati, Indian Institute of Technology Guwahati
Prof. Ravindra B. Bapat, Indian Statistical Institute, Delhi
Prof. Steve Kirkland, University of Manitoba, Canada
Prof. Shaun Fallat, University of Regina, Canada

Membership of professional bodies

Member of American Mathematical Society
Member of Society for Industrial and Applied Mathematics (SIAM)
Member of Combinatorial Mathematics Society of Australasia (CMSA)
Member of Orissa Mathematical Society

Invited Talks

TBA, National Conference and Discussion Meeting on Linear Algebra and Combinatorics (NCLAC20), BITS Goa Campus, Goa, May 25-29, 2020.
Graphs with reciprocal eigenvalue property, IWM Visitor's Program, Department of Mathematics, Utkal University, Bhubaneswar, Odisha, February 28, 2020.
Career Opportunities in Mathematics, IWM Visitor's Program, Department of Mathematics, College of Basic Sciences and Humanities, Bhubaneswar, Odisha, February 05, 2020.
Graphs with reciprocal eigenvalue property, IWM Visitor's Program, Department of Mathematics, Ravenshaw University, Odisha, January 29, 2020.
Non-bipartite graph classes with reciprocal eigenvalue property, Conference on Linear Algebra and its Applications in honour of Ravindra B. Bapat, Indian Statistical Institute, Delhi, December 26-27, 2019.
Graphs whose independence fractals are line segments, 6th India Taiwan Conference on Discrete Mathematics (VI-ITCDM 2019), IIT BHU, Varanasi, November 15-18, 2019.
Graphs with reciprocal eigenvalue property, International Conference on Number Theory and Graph Theory, Mysore University, June 27-29, 2019
Graphs with reciprocal eigenvalue property, IWM Annual Conference, IIT Bombay, June 10-12, 2019.
A new matrix representation of multidigraphs, International Conference on Discrete Mathematics (ICDM-2018), Tiruchirappalli, India, December 14-17, 2018.
Career Opportunities in Mathematics, IWM Workshop-2018, NISER, Bhubaneswar, October 27-28, 2018.
On the Spectra of Multidigraphs, Department of Mathematics, IIT Delhi, March 19, 2018.
On graphs with simply structured Laplacian eigenvectors, International Conference on Graph Theory and its Applications (ICGTA-2015), Amrita University, Coimbatore, India, December 16-19, 2015.

Research Guidance

Ph.D. Students:

Gopinath Sahoo: Eigensystems of graphs and multidigraphs (Awarded in July 2018). Currently, working as a Postdoctoral Fellow in Indian Statistical Institute, Delhi
Sonu Rani: Joined in July 2014 (Continuing). Currently, working as an Assistant Professor under Haryana Public Service Commission.
Sane Umesh Reddy: Joined in July 2018 (Continuing)
Subhashis Behera: Joined in July 2018 (Continuing)
Sattick Ghosh: Joined in July 2019 (Continuing)

M.Sc. Students (M.Sc. Project & Thesis):

2019-20

Rajiv Mishra
Puran Kumar
Piyush Verma

2018-19

Sattick Ghosh: Inverses of Graphs (Currently, pursuing Ph.D in IIT Bhubaneswar in the area of Combinatorial Matrix Theory)
Sudipta Ghosh: On p-Spectral Radius of Graphs (Currently, pursuing M.Tech. in Indian Statistical Institute Kolkata)

2017-18

Divyanshu Vashistha: Squared Distance Matrix of a Tree (Currently, pusuing Ph.D in IIT Roorkee)
Shirshendu Pan: Graphs with Reciprocal Eigenvalue Property (Was working as a Developer in R&D, Tata Consultancy Services. Currently pursuing Ph.D in IIT Guwahati in the area of " Spectral Graph Theory")
Smriti Pandey: Integral Graphs

2016-17

Amit Kumar: Relation Between Energy and Laplacian Energy of a Graph
Saheb Dalapati: The Energy of a Graph (Currently, working as a Faculty (Graph Theory) in St. Theresa International College, Thailand)

2015-16

Diksha Tiwari: A Study on the Laplacian Spectra and the Distance Spectra of Graphs with Pockets (Currently, a Doctoral Student in University of Vienna, Austria, working in the area "Applications of Generalized Smooth Functions)
Sumit: Bottleneck Matrices of Graphs ( Currently, pursuing Ph.D in IIT Roorkee in the area of " Control Theory and Inverse Problems")
MD Shahir Mollick: A Study on Homomorphisms of Signed Graphs (Currently, working as an Assistant Professor in Nalanda College of Engineering, Patna)

2014-15

AQIB: Algebraic Connectivity of Graphs (Pursuing Ph.D at IIT Kharagpur)
Churni Gupta: On Hadamard Diagonalizable Graphs (Currently, a Graduate Student in University of Florida, USA, working in the area of "Combinatorics: Permutation Patterns")

Summer Intern:

2019: Om Adarsh, Distance Magic Graphs, Integrated MSc student, IISER Pune

Reviewing/ refereeing for the journals:

Linear Algebra and its Applications
Linear and Multilinear Algebra
Electronic Journal of Linear Algebra
Discrete Applied Mathematics
Applicable Analysis and Discrete Mathematics
International Electronic Journal of Algebra
Indian Journal of Pure and Applied Mathematics
Indian Journal of Discrete Mathematics

Organized Conferences or Workshops

Organized "IWM Visiting Programs" in different colleges of Odisha, January-February, 2020.
Co-organized “IWM (Indian Women and Mathematics) Regional Workshop on Research and Opportunities”, October 27-28, 2018 at NISER, Bhubaneswar funded by NBHM.
Co-organized “Vigyan Jyoti programme: An initiation to promote interest in Science and Technology amongst girl students ”, June 4-24, 2018 at IIT Bhubaneswar, Bhubaneswar funded by DST.
Organized undergraduate training programme “Mini Mathematics Training and Talent Search Programme (MTTS)”, December 9-21, 2013 at IIT Bhubaneswar, Bhubaneswar funded by NBHM.
Organized a national level instructional workshop on “Graph Theory and its Applications”, December 17-23, 2009 at Institute of Mathematics and Applications, Bhubaneswar funded by DST.

Courses Taught/Teaching

Spring 2020: Mathematics II (B.Tech 2nd Semester), Numerical Analysis (M.Sc. 1st Semester)
Autumn 2019: Mathematics I (B.Tech 1st Semester), Discrete Mathematics (M.Sc. 1st Semester), Algebraic Graph Theory (M.Sc/Ph.D)
Spring 2019: Mathematics II (B.Tech. 2nd Semester), Number Theory (M.Sc. 4th Semester)
Autumn 2018: Linear Algebra (M.Sc 1st Semester), Discrete Mathematics (M.Sc 1st Semester)
Spring 2018: Mathematics II (B.Tech. 2nd Semester), Number Theory (M.Sc. 4th Semester)
Autumn 2017: Discrete Mathematics (M.Sc 1st Semester), Advanced Matrix Theory (M.Sc 3rd Semester)
Spring 2017: Algebra (M.Sc 2nd Semester), Number Theory (M.Sc 4th Semester)
Autumn: 2016: Linear Algebra (M.Sc. 1st Semester), Advanced Matrix Theory (M.Sc 3rd Semester)
Spring 2016: Mathematics II (B.Tech 2nd Semester), Advanced Matrix Theory (M.Sc 4th Semester), Nonnegative Matrix Theory (Ph.D)
Autumn 2015: Discrete Mathematics (M.Sc 1st Semester), Number Theory (M.Sc. 3rd Semester), Algebraic Graph Theory (Ph.D)
Spring 2015: Mathematics II (B.Tech 2nd Semester), Algebra (M.Sc 2nd Semster), Algebraic Graph Theory (Ph.D)
Autumn 2014: Discrete Mathematics (M.Sc. 1st Semester), Advanced Matrix Theory (M.Sc 3rd Semester), Non-negative Matrix theory (Ph.D)
Spring 2014: Mathematics II (B.Tech 2nd Semester), Algebra (M.Sc 2nd Semester)
Autumn 2013: Discrete Mathematics (M.Sc 2nd Semester), Algebraic Graph Theory (Ph.D)
Spring 2013: Mathematics II (B.Tech 2nd Semester), Nonnegative Matrix Theory (Ph.D)
Autumn 2012: Transform Calculus (B.Tech 3rd Semester), Preparatory Mathematics I (B.Tech Preparatory)
Spring 2012: Mathematics II (B.Tech 2nd Semester)