P Sam Johnson

Designation:

Associate Professor

Contact Details

E-mail:

sam [at] nitk.ac.in

nitksam [at] gmail.com

Telephone:

91-824-2473261

Mobile:

094488 45980

Personal Website:

http://sam.nitk.ac.in

Academic Background

PhD, Alagappa University, 2005
MPhil, Alagappa University, 2001
MSc, Alagappa University, 2000
BSc, Madurai Kamaraj University, 1998

Areas of Interest

Functional Analysis
Operator Theory

Significant Projects

Funding Agency: SERC, DST, Government of India SR/FTP/ MS-050/2011 ; Title of the Project: Topological Structures for Semiclosed Operators on Hilbert spaces ; Duration: Three Years starting from 17.05.2013 to 16.05.2017 ; Completed.

Funding Agency: NBHM, DAE, Government of India NBHM/R.P.45/2012/Fresh/308 ; Title of the Project: A Study on Moore-Penrose Inverses in Krein spaces ; Duration: Three Years starting from 15.08.2013 to 14.08.2016 ; Completed.

Funding Agency: NITK, Surathkal ; RGO/O.M/SEED GRANT/106/2009 ; Title of the Project : A Study on Closed Range Operators ; Duration : Two Years starting from 26.01.2009 to 25.01.2011 ; Completed.

Supervision of Ph.D

Degree Awarded : 02
On Going : 04

Significant Publications

14. P. Sam Johnson and S. Balaji, "Convergence of Operators with Closed Range," Khayyam J. Math. 5 (2019) No. 2, 132-138.

13. Mahesh Krishna and P. Sam Johnson, "Quotient Operators and the Open Mapping Theorem," Filomat 32:18 (2018), 6221–6227.

12. P. Sam Johnson and Vinoth A, "Product and Factorization of Hypo-EP Operators," Special Matrices 6 (2018), 376-382.

11. B. Parvathalu and P. Sam Johnson, "Construction of Mercedes-Benz Frame in Rn," International Journal of Applied and Computational Mathematics, December 2017, Issue 1 Supplement, 511-519.

10. G. Ramu and P. Sam Johnson, "Frames for Operators in Banach Spaces," Acta Mathematica Vietnamica, 42 (2017), 665-673.

9. Vinoth A and P. Sam Johnson, "On Sum and Restriction of Hypo-EP Operators," Funct. Anal. Approx. Comput. 9 (1) (2017), 37-41.

8. G. Ramu and P. Sam Johnson, "Frame Operators of K-frames," Boletin de la Sociedad Espanola de Matematica Aplicada, SeMA Journal (2016) 73 : 171-181.

7. P. Sam Johnson and G. Ramu, "Class of Bounded Operators associated with an Atomic System," Tamkang Journal of Mathematics, Vol.46, No.1, 85-90, March 2015.

6. P. Sam Johnson, “Multiplication Operators with Closed Range in Operator Algebras,” Journal of Analysis and Number Theory, Vol. 1, No.1, 1-5, 2013.

5. P. Sam Johnson and S. Balaji, “On Semiclosed Subspaces of Hilbert Spaces,” International Journal of Pure and Applied Mathematics, Vol. 79, No. 2, 2012, 249-258.

4. P. Sam Johnson and S. Balaji, “Hyers-Ulam Stability of Linear Operators in Frechet Spaces,” Applied Mathematics and Information Sciences, Vol. 6, No.3, 525-528 (2012).

3. P. Sam Johnson and S. Balaji, “On Linear Operators with Closed Range,” Journal of Applied Mathematics and Bioinformatics, Vol.1, No.2, 2011, 175-182.

2. P. Sam Johnson and C. Ganesa Moorthy, “Composition of Operators with Closed Range,” Journal of Analysis, 14(2006), 79-80.

1. C. Ganesa Moorthy and P. Sam Johnson, “Composition of Closed Range Operators,” Journal of Analysis, 12(2004), 165-169.

Achievements

Organization of Conferences and other Academic Events

• Organized a national-level workshop on "Spectral Analysis and Applications" sponsored by NBHM during 14-16, February 2013.

• Organized a national-level workshop on "Functional Analysis and Operator Algebras" sponsored by NBHM during 02-07, June 2014.

• Organized a national-level workshop on "Topological Dynamics" sponsored by NBHM during 10-12, December 2015.

• Invited Talks Arranged : 17

Awards and Distinctions

• Received Merit Scholarship from Alagappa University in M.Phil.

• Alagappa University Second Rank in M.Phil.

• Qualified National Eligiblity Test (NET-JRF) conducted by CSIR

• Received Junior Research Fellowship (JRF) from CSIR while doing Ph.D

Assignments/Responsibilities:

• Associate NCC Officer at NITK in the rank of "Lieutenant" since 16th December 2012

• Member of Institute Grievance Redressal Committee since 18th June 2015

• Faculty In-charge (Security), 2016-2018

• Visiting Faculty to IIIT Dharwad, 2015

• Warden of NITK 8th Block Hostel, 2014-2016

• Visits Abroad : United States of America (2014), Canada (2013), Republic of Korea (2014), United Kingdom (2017), Malaysia (2008, 2010), Egypt (2011)