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pro vyhledávání: '"K, Shahul Hameed"'
A conjugate skew gain graph is a skew gain graph with the labels (also called, the conjugate skew gains) from the field of complex numbes on the oriented edges such that they get conjugated when we reverse the orientation. In this paper we introduce
Externí odkaz:
http://arxiv.org/abs/2307.05718
Autor:
K., Shahul Hameed1 shabrennen@gmail.com, Mathew, Albin2 albinmathewamp@gmail.com, K. A., Germina2 srgerminaka@gmail.com, Zaslavsky, Thomas3 zaslav@math.binghamton.edu
Publikováno v:
Communications in Combinatorics & Optimization. 2024, Vol. 9 Issue 3, p555-565. 11p.
A signed graph is a graph with edges marked positive and negative; it is unbalanced if some cycle has negative sign product. We introduce the concept of vector valued switching function in signed graphs, which extends the concept of switching to high
Externí odkaz:
http://arxiv.org/abs/2208.00149
Autor:
K, Shahul Hameed, P, Remna K, T2, Divya, K, Biju, P, Rajeevan, O2, Santhosh G, O, Ramakrishnan K
A signed graph $\Sigma$ is a pair $(G,\sigma)$, where $G=(V,E)$ is the underlying graph in which each edge is assigned $+1$ or $-1$ by the signature function $\sigma:E\rightarrow\{-1,+1\}$. In this paper, we extend the extensively applied concepts of
Externí odkaz:
http://arxiv.org/abs/2106.12539
A signed graph is an ordered pair $\Sigma=(G,\sigma),$ where $G=(V,E)$ is the underlying graph of $\Sigma$ with a signature function $\sigma:E\rightarrow \{1,-1\}$. In this article, we define $n^{th}$ power of a signed graph and discuss some properti
Externí odkaz:
http://arxiv.org/abs/2009.10486
Let $G=(V,\overrightarrow{E})$ be a graph with some prescribed orientation for the edges and $\Gamma$ be an arbitrary group. If $f\in \mathrm{Inv}(\Gamma)$ be an anti-involution then the skew gain graph $\Phi_f=(G,\Gamma,\varphi,f)$ is such that the
Externí odkaz:
http://arxiv.org/abs/2009.10487
Publikováno v:
Linear Algebra and its Applications 608 (2021), 236--247
Signed graphs have their edges labeled either as positive or negative. Here we introduce two types of signed distance matrix for signed graphs. We characterize balance in signed graphs using these matrices and we obtain explicit formulae for the dist
Externí odkaz:
http://arxiv.org/abs/2005.06202
Autor:
Chitra Pattabiraman, Pramada Prasad, Sampada Sudarshan, Anson K. George, Darshan Sreenivas, Risha Rasheed, Ayushman Ghosh, Ananya Pal, Shafeeq K. Shahul Hameed, Bhaswati Bandyopadhyay, Anita Desai, Ravi Vasanthapuram
Publikováno v:
Microbiology Spectrum, Vol 10, Iss 2 (2022)
ABSTRACT Brain infections are a major public health problem in India and other parts of the world, causing both mortality and lifelong disability. Even after a thorough investigation, many cases remain without an etiological diagnosis. Primate erythr
Externí odkaz:
https://doaj.org/article/17d43a7eb01b48ff83877663e75ad517
Autor:
Jonas S. Sundarakumar, Shafeeq K. Shahul Hameed, SANSCOG Study Team, Vijayalakshmi Ravindranath
Publikováno v:
Frontiers in Public Health, Vol 9 (2021)
Introduction: The important role of micronutrient deficiencies in aging-related disorders including dementia is becoming increasingly evident. However, information on their burden in India is scarce, especially, among aging and rural communities.Meth
Externí odkaz:
https://doaj.org/article/20004655c0f644a1bf5fc3c4b73091d5
Publikováno v:
Linear Algebra and its Applications, 435 (2011), no. 10, 2432--2450. MR 2811128 (2012j:05254). Zbl 1222.05223
In this article we examine the adjacency and Laplacian matrices and their eigenvalues and energies of the general product (non-complete extended $p$-sum, or NEPS) of signed graphs. We express the adjacency matrix of the product in terms of the Kronec
Externí odkaz:
http://arxiv.org/abs/1010.3884