Results 41 to 50 of about 7,403 (166)

Interference, reduced action, and trajectories [PDF]

open access: yes, 2006
Instead of investigating the interference between two stationary, rectilinear wave functions in a trajectory representation by examining the two rectilinear wave functions individually, we examine a dichromatic wave function that is synthesized from the ...
A. Bouda   +44 more
core   +5 more sources

The A spectral moments of digraphs with a given dichromatic number

open access: hybridLinear Algebra and its Applications
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Xiuwen Yang, Hajo Broersma, Ligong Wang
openalex   +3 more sources

Fruit scent and observer colour vision shape food-selection strategies in wild capuchin monkeys [PDF]

open access: yes, 2019
The senses play critical roles in helping animals evaluate foods, including fruits that can change both in colour and scent during ripening to attract frugivores.
Endo, Mizuki   +9 more
core   +1 more source

Chromatic roots are dense in the whole complex plane [PDF]

open access: yes, 2000
I show that the zeros of the chromatic polynomials P_G(q) for the generalized theta graphs \Theta^{(s,p)} are, taken together, dense in the whole complex plane with the possible exception of the disc |q-1| < 1.
Sokal, Alan D.
core   +3 more sources

Retinal aging in the diurnal Chilean rodent (Octodon degus): histological, ultrastructural and neurochemical alterations of the vertical information processing pathway

open access: yesFrontiers in Cellular Neuroscience, 2015
The retina is sensitive to age-dependent degeneration. To find suitable animal models to understand and map this process has particular importance. The degu (Octodon degus) is a diurnal rodent with dichromatic color vision.
Krisztina eSzabadfi   +9 more
doaj   +1 more source

Tutte's dichromate for signed graphs

open access: yes, 2020
We introduce the ``trivariate Tutte polynomial" of a signed graph as an invariant of signed graphs up to vertex switching that contains among its evaluations the number of proper colorings and the number of nowhere-zero flows.
Goodall, Andrew   +3 more
core   +1 more source

Acyclic edge coloring of graphs [PDF]

open access: yes, 2014
An {\em acyclic edge coloring} of a graph $G$ is a proper edge coloring such that the subgraph induced by any two color classes is a linear forest (an acyclic graph with maximum degree at most two). The {\em acyclic chromatic index} $\chiup_{a}'(G)$ of a
Wang, Tao, Zhang, Yaqiong
core   +1 more source

Comparison of the Chinese bamboo partridge and red Junglefowl genome sequences highlights the importance of demography in genome evolution

open access: yesBMC Genomics, 2018
Background Recent large-scale whole genome sequencing efforts in birds have elucidated broad patterns of avian phylogeny and genome evolution. However, despite the great interest in economically important phasianids like Gallus gallus (Red Junglefowl ...
G. P. Tiley   +3 more
doaj   +1 more source

Dichromatic polynomials and Potts models summed over rooted maps

open access: yes, 2001
We consider the sum of dichromatic polynomials over non-separable rooted planar maps, an interesting special case of which is the enumeration of such maps. We present some known results and derive new ones.
Arakaki   +31 more
core   +1 more source

Cuts in matchings of 3-connected cubic graphs [PDF]

open access: yes, 2018
We discuss conjectures on Hamiltonicity in cubic graphs (Tait, Barnette, Tutte), on the dichromatic number of planar oriented graphs (Neumann-Lara), and on even graphs in digraphs whose contraction is strongly connected (Hochst\"attler). We show that all
Knauer, Kolja, Valicov, Petru
core   +2 more sources

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