Date of Joining in NIT Andhra Pradesh : 11/12/2019

Designation: Associate Professor

Research Areas of Specialization: 

• Generalized inverses of matrices and operators
• Monotonicity of finite and infinite dimensional operators
• Matrix splittings and convergence of iterative methods
• Indefinite inner product spaces

Educational Qualifications:

•  Ph.D. (January 2004- July 2008): Indian Institute of Technology Madras.  Thesis title: Nonnegative Moore-Penrose Inverses of Operators between Hilbert Spaces. Supervisor :  Prof. K.C. Sivakumar.
• M.Sc. (2000-2002): University of Hyderabad. Specialization: Pure Mathematics
• B.Sc. (1997-2000):  Silver Jubilee Government Degree College, Kurnool, S.K. University.

Professional Experience:

• Associate Professor (11th December, 2019 - Till date): School of Sciences, NIT Andhra Pradesh, Tadepalligudem .
• Assistant Professor Grade-I (18th May, 2012 -  10th December, 2019): Department of Mathematics, NIT Warangal .
• Assistant Professor Grade-I (September 2008 - May 2012): Department of Mathematics, BITS Pilani Hyderabad campus.
• Lecturer  (Jan 2008 - Aug 2008): SSN Engineering College, Chennai.
• Teaching Assistant (Jan 2004 - Dec 2007): IIT Madras .
• Lecturer (Aug 2002 - Dec 2003): Medak College of Eng. and Tech., Siddipet .

Courses Taught:

PG Courses:

• Real Analysis (3 times)
• Linear Algebra (4 times)
• Topology (3times)
• Measure and Integration (4 times)
• Functional Analysis (4 times)
• Algebra I (Groups and Rings, 2 times)
• Algebra II (Vector spaces, Modules, Fields, 2 times)

UG Courses at NITW:

• Mathematics I (Matrix algebra, Differential calculus, Differential equations)
• Mathematics II (Integral calculus, Vector calculus, Laplace transforms)
• Complex variables and special functions
• Mathemaetics IV (Probability and Statistics, Numerical methods, Series solutions of differential equations)

UG Courses at BITS Hyderabad:

• Calculus
• Linear Algebra and Complex Analysis
• Differential equations

Significant Research Publications: 

•  Archana Bhat and T. Kurmayya,  A characterization of cone nonnegativity of Moore-Penrose inverses of unbounded gram operators
  DOI: 10.1007/s11117-022-00908-y , Accepted on March, 2022.                                                                                                                                                                         

•  K. Appireddy and  T. Kurmayya,  Comparison results for Proper double  splitting of Rectangular matrices, Filomat,  Vol. 32, no. 6, 2273-2281,  2018.   

• K. Appi Reddy,  T. Kurmayya  and K.C. Sivakumar, Group Inverse Extensions of Certain M-matrix properties,  Electronic Journal of Linear Algebra, 31, 686-705, November 2016.

•  T. Kurmayya and G. Ramesh,  Cone nonnegativity of Moore-Penrose inverses of unbounded gram operators, Annals of Functional Analysis , 7(2), 338-347, 2016.

•  K. Appireddy and  T. Kurmayya, {T,S} Splittings of Rectangular Matrices Revisited, International Journal of Pure and Applied Mathematics", Vol.108(4), 909-919, 2016.

•  K. Appi Reddy and T. Kurmayya,  Moore-Penrose inverses of Gram matrices leaving  a cone invariant in an indefinite innerproduct space, Special Matrices, 3,  155-162, 2015.

•  K. Kamaraj ,T. Kurmayya and K.C. Sivakumar, On characterizations of Nonnegative Moore-Penrose inverses of Hilbert Space operators, The Journal of Analysis; 16, 11-18, 2008.

•  T.Kurmayya and K.C. Sivakumar, Moore-Penrose Inverse of a Gram Matrix and Its Nonnegativity,  Journal of  Optimization Theory and  Appl. , 139, 201-207, 2008.

• T.Kurmayya and K.C. Sivakumar, positive splittings of matrices and their nonnegative moore-penrose inverses, Discussiones Mathematicae General Algebra and Applications 28, 227-235, 2008.

• T.Kurmayya and K.C. Sivakumar, Nonnegative Moore-Penrose inverses of operators over Hilbert spaces; Positivity 12,  475-481, 2008. 

• T.Kurmayya and K.C. Sivakumar; Nonnegative Moore Penrose inverses of Gram operators; Linear Algebra and its Applications, 422 , 471-476 , 2007.     

Research Supervision:

   Ph.D. Guidance:

1.  K. Appi Reddy (July 2013 - Dec 2017) :   Completed with the  Institute Fellowship at NIT Warangal.

   Thesis Title:  "Certain Results on Nonnegative Generalized Inverses and Splittings of Matrices".

2.  Archana Bhat (July 2018-Till date): On going with the support of DST Inspire Fellowship at NIT Warangal. Research Problem: Cone nonnegativity of generalized inverses of bounded and unbounded linear operators

3.  Ch. MacharaVerriyya ( Jan 2020-Till date): On going part time Ph.D. scholar at NIT Andhra Pradesh.  Research Area: Matrix Analysis
4.  K. Chandra Mouli (Jan 2021-Tilldate): On going part time Ph.D. scholar at NIT Andhra Pradesh.  Research Area: Applied Linear Algebra

Post Graduate Thesis supervision:  

 B.Tech. Projects Supervision: 

Workshops/FDP/Conferences  organized:

• AICTE ATAL FDP on "Applications of Linear Algebra in Data Science" is being organized during 7th-11th Septeber, 2020

Professional Training received:

Contributory Talks in Conferences/Workshops:

• Nonnegative Moore-Penrose inverses over Hilbert lattices: National Symposium on Mathematical Methods and Applications organized by IIT - Madras, Chennai , December 22, 2006.
•  Nonnegative Moore-Penrose inverses over Hilbert lattices: CMASM, the Fourteenth Inter- national Conference of the FIM , IIT Madras, Chennai, 6th -8th , January 2007.
•  Nonnegative Moore–Penrose inverses of Gram operators: International Conference on Functional Analysis and Applications, Scott Christian College, Nagercoil, Kanyakumari during November 28- December 1st, 2007.
•  Cone nonnegativity of Moore-Penrose inverses of unbounded gram operators: International Conference on Linear Algebra \& its Applications, Department of Statistics, Manipal University during December 18-20, 2014.
•  Group inverse extensions of certain M-matrix properties: International Conference on Mathematical Analysis and its Applications, Department of Mathematics, IIT Roorkee, November 28-December 02, 2016.
• Delivered 1 hour  lecture in CMES-2013 organized by Department of Mathematics ,  NIT Warangal, 25th Oct 2013.
• Delivered 1 hour  lecture in MMNTES-2018 organized by Department of Mathematics, NIT Warangal, 9-13^th,Oct, 2018.
• Delivered 3 hours  lectures in MCNTES-2018 organized by Department of Mathematics, NIT Warangal, 29^th Oct-2^nd Nov, 2018.

 Invited Talks at Various Places:

•  Banch fixed point theorem and its applications, STTP on Recent trends in Applied Mathematics, Department of Mathematics, VNIT Nagpur, 9th May, 2013.
• Singular value Decomposition and its applications, STTP on Recent trends in Applied Mathematics, Department of Mathematics, VNIT Nagpur, 9th May, 2013.
•  Computational methods of Generalized inverses, National Workshop on Computational methods in Engineering and Science, NIT Warangal, 25th October, 2013.
•  Perron-Frobenius theorem and its applications, Current trends in Applied Mathematics: Applications and future aspects, NIT Raipur, 10th July, 2015.
• Resource person for FDP “Workshop on Linear Algebra”, Nagarjuna Govt. Degree College(A), Nalgonda,  27^th Oct, 2018.
• Delivered Invited talk in NCMCA-2018, Women’s Christian College, Chennai, 25^th Jan, 2018.

Achievements and Awards:

• Received the R.S. Varma Memorial Best Paper Award-2007, in the International Conference on Computational, Mathematical and Statistical Methods during 6 -8, Jan 2007, organized by IIT-Madras and Stella Maris College, Chennai. 
• Senior Research Fellowship, Indian Institute of Technology, Madras, Jan 2006  - Dec 2007.
• Junior Research Fellowship, Indian Institute of Technology, Madras, Jan 2004- Dec 2005.
• Secured 96.65 Percentile, all  India 44th Rank) in GATE 2003.
• Secured all india 174th rank in GATE 2002.
•  Won SilvernMedal in the Mathematical Olympiad 2001 organized by Andhra Pradesh Association of Mathematics Teachers.
• Got All India 7th rank in University of Hyderabad M.Sc. entrance exam.
• Received N.C.C. (National Cadet Core) Army wing B & C certificates for well performance.
• Selected as Assistant Professor in VIT vellore, SSN Eng. College, BITS Hyderabad, NIT Rourkela and in NIT Warangal

Additional Responsibilities:

• Dean, Academic Affairs, NIT Andhra Pradesh (1st October 2020-till date)
• Head, School of Sciences, NIT Andhra Pradesh (Jan 2020-Sep 2021)
• Time table In-charge, Department of Mathematics, NIT Warangal (Jan 2018 - Dec 2019)
• Hostel Warden from May 2014- Nov 2016 in NIT Warangal.
• Member in the exam schedule committee from Jun 2009-Aug 2010 in BITS Hyderabad.
• Faculty In-charge for  Project course allotment from  July 2010 to May 2012.
• Faculty coordinator for the practice school program in  summer 2011.
• Member in  the Admissions, Course Registration and Counselling Committees.
• Course coordinator for Mathematics-I multi-section course in 2011.
• DAC UG and DAC PG&R member in NIT Warangal
• Reviewer for American Mathematical Society reviews
• Member in the Board of studies in Mathematics, Osmania University (UCE), Hyderabad from 2014 to 2016
• Developed and delivered Three lectures for “A Refresher course on calculus” as a part of National Resource Centre (NRC) in Mathematics, NIT Warangal,2018.
• One of the Instructors for GATE coaching classes conducted by SC/ST cell in  NIT Warangal.
• Teacher observer in MTTS Programme 2019 conducted at IISER, Thiruvananthapuram.