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of 4 352
pro vyhledávání: '"SIVAKUMAR, K."'
Let $T\colon M_n\rightarrow M_n$ preserve Hadamard circulant majorization. In this note, we show that this property is inherited by the three most popular generalized inverses, viz. the Moore-Penrose inverse, the group inverse and the Drazin inverse.
Externí odkaz:
http://arxiv.org/abs/2412.04519
Autor:
Pratihar, Samapti, Sivakumar, K. C.
Two new matrix classes are introduced; inverse cyclic matrices and bi-diagonal south-west matrices. An interesting relation is established between these classes. Applications to two classes of inverse $Z$-matrices are provided.
Externí odkaz:
http://arxiv.org/abs/2412.00003
In the setting of real square matrices, it is known that, if $A$ is a singular irreducible $M$-matrix, then the only nonnegative vector that belongs to the range space of $A$ is the zero vector. In this paper, we prove an analogue of this result for
Externí odkaz:
http://arxiv.org/abs/2305.04932
Autor:
Mondal, Samir, Sivakumar, K. C.
A real square matrix $A$ of order $n \times n~ (n \geq 3)$ is called an $F_0$-matrix, if it is a $Z$-matrix (off-diagonal entries nonpositive), all of whose principal submatrices of orders at most $n-2$ are $M$-matrices while there is at least one pr
Externí odkaz:
http://arxiv.org/abs/2305.05547
Autor:
Balasubramanian K, Sivakumar K
Publikováno v:
Renewable Energy and Sustainable Development, Vol 10, Iss 2, Pp 153-160 (2024)
The research investigates how temperature and substrate composition impact anaerobic biogas production in a pilot-scale reactor. Anaerobic digestion is a vital process for converting organic substrates into biogas, mainly composed of methane and carb
Externí odkaz:
https://doaj.org/article/310adbb6e8c24cd1976f4a6e1de82fe8
Publikováno v:
Journal of Consumer Marketing, 2024, Vol. 41, Issue 1, pp. 78-93.
Externí odkaz:
http://www.emeraldinsight.com/doi/10.1108/JCM-10-2022-5647
Publikováno v:
In Journal of Molecular Structure 15 November 2024 1316
Autor:
Logeshwari, G., Jeyashri, K.R., Rajkumar, M., Manikandan, H., Sivakumar, K., Selvanayagam, S., Rajathi, V.
Publikováno v:
In Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 15 October 2024 319
Autor:
Devi, V. J. Ramya, Perumal, G. Vallal, Rajarajan, G., Sivakumar, K., Thanikachalam, V., Kaviyarasu, K.
Publikováno v:
In Journal of Molecular Structure 5 February 2025 1321 Part 4
Autor:
Priya K. Kranthi, Sivakumar K. C.
Publikováno v:
Special Matrices, Vol 12, Iss 1, Pp 211-217 (2024)
It is known that the inverse of an invertible real square matrix satisfying the triangle property is a tridiagonal matrix. In this note, results that may be considered as analogues of this assertion are obtained for the Moore-Penrose inverse and the
Externí odkaz:
https://doaj.org/article/20e1348e8ae64615ab865c98e1daa37c