Results 21 to 30 of about 1,312 (121)
Cuts in matchings of 3-connected cubic graphs [PDF]
, 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
Potts model on recursive lattices: some new exact results
, 2012 We compute the partition function of the Potts model with arbitrary values of $q$ and temperature on some strip lattices. We consider strips of width $L_y=2$, for three different lattices: square, diced and `shortest-path' (to be defined in the text). We
A. Bedini +48 more
core +1 more source
Qutrit Dichromatic Calculus and Its Universality
, 2014 We introduce a dichromatic calculus (RG) for qutrit systems. We show that the decomposition of the qutrit Hadamard gate is non-unique and not derivable from the dichromatic calculus.
Bian, Xiaoning, Wang, Quanlong
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Perceived Saturation in Normal and Red–Green Color‐Deficient Observers
Color Research &Application, Volume 51, Issue 2, March/April 2026.Results in this study indicate that perceived saturation of protan (P) and deutan (D) observers is lower than that of color normal (N) observers as shown in the figures. Horizontal axis denotes the stimulus pair with the same hue but different chroma.
Miyoshi Ayama +2 more
wiley +1 more source
Bounds on the Complex Zeros of (Di)Chromatic Polynomials and Potts-Model Partition Functions [PDF]
, 2000 I show that there exist universal constants $C(r) < \infty$ such that, for all loopless graphs $G$ of maximum degree $\le r$, the zeros (real or complex) of the chromatic polynomial $P_G(q)$ lie in the disc $|q| < C(r)$.
Sokal, Alan D.
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Ecology and Evolution, Volume 16, Issue 2, February 2026.D. vela exhibited pronounced sexual divergence in morphological traits, bite force, and body coloration, shaped by the interplay of three evolutionary mechanisms: sexual selection, fecundity advantage, and intraspecific niche divergence. These complementary, non‐exclusive processes collectively enhance adaptive fitness in the hot, dry river valley ...
Songwen Tan +5 more
wiley +1 more source
, 2012 We introduce an additional structure on ribbon graphs, arrow structure. We extend the Bollob\'as-Riordan polynomial to ribbon graph with this structure.
Chmutov S. +5 more
core +1 more source
Sex matters: European urban birds flee approaching women sooner than approaching men
People and Nature, Volume 8, Issue 2, Page 316-326, February 2026.Abstract Flight initiation distance (FID) is a metric often used to study an individual's perceptions of risk when facing a predatory threat. Longer FID indicates lower risk‐taking, while shorter FID identifies bolder individuals who tolerate greater risk.
Federico Morelli +9 more
wiley +1 more source
Competition between binding partners of yeast Pex3 affects peroxisome biology
The FEBS Journal, Volume 293, Issue 1, Page 175-195, January 2026.Pex3 is a peroxisomal membrane protein (PMP) that specifically recruits several binding partners. In the yeast Hansenula polymorpha, Atg30 (pexophagy), Inp1 (inheritance) and Pex19 (receptor for new PMPs) associate with Pex3. Overexpression of any of these proteins affects peroxisomal processes because these proteins compete for binding to Pex3.
Eline M. F. de Lange +5 more
wiley +1 more source
Lattice Points in Orthotopes and a Huge Polynomial Tutte Invariant of Weighted Gain Graphs
, 2015 A gain graph is a graph whose edges are orientably labelled from a group. A weighted gain graph is a gain graph with vertex weights from an abelian semigroup, where the gain group is lattice ordered and acts on the weight semigroup.
Forge, David, Zaslavsky, Thomas
core +4 more sources