Results 91 to 100 of about 123,660 (292)

Rainbow domination and related problems on some classes of perfect graphs

, 2015
Let $k \in \mathbb{N}$ and let $G$ be a graph. A function $f: V(G) \rightarrow 2^{[k]}$ is a rainbow function if, for every vertex $x$ with $f(x)=\emptyset$, $f(N(x)) =[k]$.
A Bertossi, A Bretscher, B Bres̆ar, B Bres̆ar, B Courcelle, B Hartnell, B Jamison, C Yen, D Corneil, D Corneil, F Chu, G Chang, G Chang, J Rooij van, M Farber, M Golumbic, M Habib, P Cameron, P Gilmore, R Aharoni, R Rubalcaba, R Rubalcaba, T Gallai, V Vizing   +23 more
core   +1 more source

Domination parameters with number 2: interrelations and algorithmic consequences

, 2016
In this paper, we study the most basic domination invariants in graphs, in which number 2 is intrinsic part of their definitions. We classify them upon three criteria, two of which give the following previously studied invariants: the weak $2$-domination
Bonomo, Flavia, Bresar, Bostjan, Grippo, Luciano N., Milanic, Martin, Safe, Martin D.   +4 more
core  

The coelurosaur theropods of the Romualdo formation, early Cretaceous (Aptian) of Brazil: Santanaraptor placidus meets Mirischia asymmetrica

The Anatomical Record, EarlyView.
Abstract The upper carbonate concretion levels of the Romualdo Formation (Aptian, Brazil) have yielded several theropod dinosaur remains, including spinosaurids and the coelurosaurs Santanaraptor placidus and Mirischia asymmetrica, the phylogenetic affinities of which are controversial.
Rafael Delcourt, Orlando Nelson Grillo, Christophe Hendrickx, Maximilian Kellermann, Max Cardoso Langer   +4 more
wiley   +1 more source

Hiding in Plain Sight: Rethinking the Size and Complexity of Iron Age Hillforts in NW Iberia Thanks to Aerial Archaeology and Geophysics

Archaeological Prospection, EarlyView.
ABSTRACT This paper tackles one key limitation in the analysis of Iron Age communities in the Northwestern Iberian Peninsula: the limited exploration of areas beyond the fortified settlements known as castros (hillforts). The vast majority of archaeological studies have focused exclusively on the areas inside the walls of these settlements, which are ...
César Parcero‐Oubiña, Carlos Otero‐Vilariño, María Gómez‐Faro, Jesús Ignacio Jiménez Chaparro, Pastor Fábrega‐Álvarez, Juan Torrejón‐Valdelomar, Marta Crespo‐Fernández, David González‐Álvarez   +7 more
wiley   +1 more source

Upper bounds for domination related parameters in graphs on surfaces

AKCE International Journal of Graphs and Combinatorics, 2016
In this paper we give tight upper bounds on the total domination number, the weakly connected domination number and the connected domination number of a graph in terms of order and Euler characteristic.
Vladimir Samodivkin
doaj   +1 more source

The cart tracks at San Pawl tat-Targa, Naxxar [PDF]

, 1994
A notable concentration of cart tracks occurs at T'Alla u Ommu also known as Naxxar Gap at San Pawl tat-Targa, limits of Naxxar. By focusing on the ancient tracks in one specific area, this paper attempts to illustrate which characteristics can be ...
Tanti, Tony, Ventura, Frank
core  

A Multisensor Remote Sensing Approach to Archaeological Prospection: Integrating UAV and Google Earth Data in the Bayan Gol Valley, Mongolia

Archaeological Prospection, EarlyView.
ABSTRACT This study investigates the effectiveness of drone‐based remote sensing and Google Earth satellite imagery for archaeological prospection in the Bayan Gol Valley, Central Mongolia. Utilizing a fixed‐wing unmanned aerial vehicle (UAV) equipped with RGB and multispectral sensors, we surveyed 655 ha to document Mongol‐period settlement structures
Peter Heimermann, Matthias Lang, Susanne Reichert, Lkhagvadorj Munkhbayar, Jan Bemmann   +4 more
wiley   +1 more source

The Geometric Themes in the Mosaics of the Religious Complex of Mértola (Portugal)

Journal of Mosaic Research, 2017
The Settlement of Mértola dates from at least the end of the second or early first millennium BC. In the so-called Iron Age, possibly in the third century BC, a walled enclosure with a total length of about 4 kilometres was constructed.
Virgílio António Martins LOPES
doaj   +1 more source

The spread of non‐native species

Biological Reviews, EarlyView.
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, Ali Serhan Tarkan, Irene Martín‐Forés, Stelios Katsanevakis, Ronaldo Sousa, Ismael Soto, Andy J. Green, Antonín Kouba, Teun Everts, Victoria Dominguez Almela, Nadège Belouard, Cang Hui, Jamie Bojko, Victor Deklerck, Margaux Boeraeve, Franz Essl, J. Robert Britton   +16 more
wiley   +1 more source

The impacts of biological invasions

Biological Reviews, EarlyView.
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, Teun Everts, Neil Angelo S. Abreo, Jamie Bojko, Victor Deklerck, James W. E. Dickey, Ana Clara S. Franco, Emili García‐Berthou, Stelios Katsanevakis, Natalia I. Kirichenko, Stefano Mammola, Martin A. Nuñez, Ben Parker, Riccardo Scalera, Ismael Soto, Diederik Strubbe, Ali Serhan Tarkan, Lorenzo Vilizzi, Tim Adriaens, Paride Balzani, Dagmara Błońska, Elizabeta Briski, Rein Brys, Amy L. Burgess, James E. Byers, Carlos Cano‐Barbacil, Giuseppe Castaldelli, Jaimie T.A. Dick, Victoria Dominguez Almela, Romina D. Dimarco, Margarita Florencio, Antonín Kouba, Melina Kourantidou, Irmak Kurtul, Irene Martín‐Forés, Olivier Morissette, Julian D. Olden, Bruno E. Soares, Jakub Truszkowski, Hugo Verreycken, Marc Kenis, Ronaldo Sousa, J. Robert Britton   +42 more
wiley   +1 more source