Results 31 to 40 of about 303 (159)

Rainbow vertex-connection number of 2-connected graphs

open access: yes, 2011
The {\em rainbow vertex-connection number}, $rvc(G)$, of a connected graph $G$ is the minimum number of colors needed to color its vertices such that every pair of vertices is connected by at least one path whose internal vertices have distinct colors. In this paper we first determine the rainbow vertex-connection number of cycle $C_n$ of order $n\geq ...
Li, Xueliang, Liu, Sujuan
openaire   +2 more sources

Inside a duck‐billed dinosaur: Vertebral bone microstructure of Huallasaurus (Hadrosauridae), Upper Cretaceous of Patagonia

open access: yesThe Anatomical Record, Volume 309, Issue 7, Page 1702-1712, July 2026.
Abstract Dinosaurs evolved a unique respiratory system with air sacs that contributed to their evolutionary success. Postcranial skeletal pneumaticity (PSP) has been used to infer the presence of air sac systems in some fossil archosaurs. While unambiguous evidence of PSP is well documented in pterosaurs and post‐Carnian saurischians, it remains absent
Tito Aureliano   +3 more
wiley   +1 more source

The spread of non‐native species

open access: yesBiological Reviews, Volume 101, Issue 3, Page 1197-1234, June 2026.
ABSTRACT The global redistribution of species through human agency is one of the defining ecological signatures of the Anthropocene, with biological invasions reshaping biodiversity patterns, ecosystem processes and services, and species interactions globally.
Phillip J. Haubrock   +16 more
wiley   +1 more source

Bilangan rainbow connection dari hasil operasi penjumlahan dan perkalian kartesius dua graf [PDF]

open access: yes, 2012
INDONESIA: Graf G dengan pewarnaan sisi disebut pelangi sisi terhubung, jika setiap titik pada graf G dihubungkan oleh lintasan yang memiliki sisi-sisi dengan warna yang berbeda.
Fuad Adi Saputra, Saputra, Fuad Adi
core   +1 more source

On the study of rainbow antimagic coloring of special graphs [PDF]

open access: yes, 2023
Let  be a connected graph with vertex set  and edge set . The bijective function  is said to be a labeling of graph where  is the associated weight for edge .
Ermita Rizki Albirri   +7 more
core   +1 more source

The impacts of biological invasions

open access: yesBiological Reviews, Volume 101, Issue 3, Page 1255-1310, June 2026.
ABSTRACT The Anthropocene is characterised by a continuous human‐mediated reshuffling of the distributions of species globally. Both intentional and unintentional introductions have resulted in numerous species being translocated beyond their native ranges, often leading to their establishment and subsequent spread – a process referred to as biological
Phillip J. Haubrock   +42 more
wiley   +1 more source

ANALISIS RAINBOW VERTEX CONNECTION PADA BEBERAPA GRAF KHUSUS DAN OPERASINYA

open access: yes, 2016
Salah satu teori yang dikembangkan dalam teori graf adalah rainbow connection. Teori rainbow connection dikembangkan menjadi 2 jenis yaitu rain- bow edge connection yang biasa disebut rainbow connection dan rainbow vertex connection.
ARISKA, Ida
core   +1 more source

Advances in BiOCl‐Based Photocatalysts: From Synthesis, Structural Tailoring to Solar Energy Conversion

open access: yesRare Metals, Volume 45, Issue 6, -Not available-.
ABSTRACT Semiconductor photocatalysis represents a pivotal frontier in the quest for sustainable energy and environmental remediation. Among the diverse catalytic materials, Bismuth Oxychloride (BiOCl) has emerged as a particularly promising candidate due to its unique layered structure, featuring [Bi2O2]2+ layers intertwined with halogen ions, which ...
Liu Han   +5 more
wiley   +1 more source

Vertex rainbow colorings of graphs

open access: yes, 2012
In a properly vertex-colored graph G, a path P is a rainbow path if no two vertices of P have the same color, except possibly the two end-vertices of P. If every two vertices of G are connected by a rainbow path, then G is vertex rainbow-connected.
Fujie-Okamoto, Futaba   +3 more
core   +1 more source

On Rainbow Antimagic Coloring of Joint Product of Graphs [PDF]

open access: yes, 2023
Let  be a connected graph with vertex set  and edge set . A bijection  from  to the set  is a labeling of graph . The bijection  is called rainbow antimagic vertex labeling if for any two edge  and  in path , where  and .
Dafik Dafik   +3 more
core   +1 more source

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