Results 161 to 170 of about 1,406 (208)

Chromatic cues for the sign of defocus in the peripheral retina. [PDF]

Biomed Opt Express
Zheleznyak L, Liu C, Winter S.
europepmc   +1 more source

Time-domain adjoint optimization for metalens design toward enhanced broadband efficiency and uniformity. [PDF]

iScience
Park M, Chung H, Jung KY.
europepmc   +1 more source

Quantifying monochromatic and polychromatic optical blur anisotropy in the periphery of myopes and emmetropes using a radial asymmetry metric. [PDF]

Front Med (Lausanne)
Degre Kendrick C, Pusti D, Yoon G.
europepmc   +1 more source

Recent Progress in Liquid Microlenses and Their Arrays for Adaptive and Applied Optical Systems. [PDF]

Micromachines (Basel)
Lu S, Cao Z, Ling J, Yuan Y, Liu X, Wang X, Guo JK.   +6 more
europepmc   +1 more source

A noncommutative approach to the Schur positivity of chromatic symmetric functions

26 pages, with an appendix of 6 pagesWe obtain the Schur positivity of spider graphs of the forms $S(a,2,1)$ and $S(a,4,1)$, which are considered to have the simpliest structures for which the Schur positivity was unknown.
Wang, David G. L., Thibon, Jean-Yves
core  

Comparative numerical analysis of astigmatism tolerance in bifocal, extended depth-of-focus, and trifocal intraocular lenses. [PDF]

Biomed Opt Express
You J, Jang M.
europepmc   +1 more source

HCHS-Net: A Multimodal Handcrafted Feature and Metadata Framework for Interpretable Skin Lesion Classification. [PDF]

Biomimetics (Basel)
Solak A.
europepmc   +1 more source

The Kneser chromatic function distinguishes trees

R.P. Stanley defined a invariant for graphs called the chromatic symmetric function and conjectured it is complete invariant for trees. Miezaki et al.
Nishimura, Yusaku
core  

Optical see-through augmented reality via inverse-designed waveguide couplers. [PDF]

Nanophotonics
Lee S, Lee B, Chung H.
europepmc   +1 more source

$q$-Chromatic polynomials

We introduce and study a $q$-version of the chromatic polynomial of a given graph $G=(V,E)$, namely, \[ \chi_G^\lambda(q,n) \ := \sum_{\substack{\text{proper colorings}\\ c\,:\,V\to[n]}} q^{ \sum_{ v \in V } \lambda_v c(v) }, \] where $\lambda \in ...
Beck, Matthias, Bajo, Esme, Vindas-Meléndez, Andrés R.   +2 more
core