Zobrazeno 1 - 10
of 247
pro vyhledávání: '"Thomas, Robin P."'
Autor:
Ujjwal, K., Kartha, Sreeja S, R, Akhil Krishna, Mathew, Blesson, Subramanian, Smitha, P, Sudheesh T, Thomas, Robin
Polycyclic Aromatic Hydrocarbons (PAHs) are ubiquitous complex molecules in the interstellar medium and are used as an indirect indicator of star-formation. On the other hand the ultraviolet (UV) emission from the young massive stars directly traces
Externí odkaz:
http://arxiv.org/abs/2401.04061
Autor:
Akhil, Krishna R., Kartha, Sreeja S, Mathew, Blesson, Ujjwal, K., Ezhikode, Savithri H., Thomas, Robin
Publikováno v:
A&A 681, A35 (2024)
During the visual observations of optical imaging data obtained from the DECaLS, a serendipitous discovery emerged, revealing the presence of a ringed galaxy, DES J024008.08-551047.5 (DJ0240). We performed one dimensional isophotal and two-dimensiona
Externí odkaz:
http://arxiv.org/abs/2308.15534
Motivated by the famous Hadwiger's Conjecture, we study the properties of $8$-contraction-critical graphs with no $K_7$ minor; we prove that every $8$-contraction-critical graph with no $K_7$ minor has at most one vertex of degree $8$, where a graph
Externí odkaz:
http://arxiv.org/abs/2208.07335
Autor:
Ujjwal, K., Kartha, Sreeja S., Subramanian, Smitha, George, Koshy, Thomas, Robin, Mathew, Blesson
Secular and environmental effects play a significant role in regulating the star formation rate and hence the evolution of the galaxies. Since UV flux is a direct tracer of the star formation in galaxies, the UltraViolet Imaging Telescope (UVIT) onbo
Externí odkaz:
http://arxiv.org/abs/2208.05999
Autor:
Thomas Robin, Ehiaze Ehimen
Publikováno v:
Sustainable Energy Research, Vol 11, Iss 1, Pp 1-22 (2024)
Abstract To achieve the Sustainable Development Goals by 2030, low-income sub-Saharan African countries urgently need to electrify. Biogas production from anaerobic digestion could make a contribution to a solution to improved electricity generation
Externí odkaz:
https://doaj.org/article/b8ede1ca7c724f708f725f2f7ea17a37
Autor:
Postle, Luke, Thomas, Robin
Let $G$ be a plane graph with $C$ the boundary of the outer face and let $(L(v):v\in V(G))$ be a family of non-empty sets. By an $L$-coloring of a subgraph $J$ of $G$ we mean a (proper) coloring $\phi$ of $J$ such that $\phi(v)\in L(v)$ for every ver
Externí odkaz:
http://arxiv.org/abs/2108.12880
A cornerstone theorem in the Graph Minors series of Robertson and Seymour is the result that every graph $G$ with no minor isomorphic to a fixed graph $H$ has a certain structure. The structure can then be exploited to deduce far-reaching consequence
Externí odkaz:
http://arxiv.org/abs/2010.12397
Autor:
Thomas, Robin, Yoo, Youngho
Publikováno v:
J. Combin. Theory Ser. B 160 (2023), 114-143
It is known that $A$-paths of length $0$ mod $m$ satisfy the Erd\H{o}s-P\'osa property if $m=2$ or $m=4$, but not if $m > 4$ is composite. We show that if $p$ is prime, then $A$-paths of length $0$ mod $p$ satisfy the Erd\H{o}s-P\'osa property. More
Externí odkaz:
http://arxiv.org/abs/2009.12230
Autor:
Thomas, Robin, Yoo, Youngho
Publikováno v:
J. Combin. Theory Ser. B 161 (2023), 228-267
We prove a refinement of the flat wall theorem of Robertson and Seymour to undirected group-labelled graphs $(G,\gamma)$ where $\gamma$ assigns to each edge of an undirected graph $G$ an element of an abelian group $\Gamma$. As a consequence, we prov
Externí odkaz:
http://arxiv.org/abs/2009.11266
Autor:
Liu, Chun-Hung, Thomas, Robin
Robertson and Seymour's celebrated Graph Minor Theorem states that graphs are well-quasi-ordered by the minor relation. Unlike the minor relation, the topological minor relation does not well-quasi-order graphs in general. Among all known infinite an
Externí odkaz:
http://arxiv.org/abs/2006.00192