Results 31 to 40 of about 216,912 (262)

Postmating isolation and evolutionary relationships among Fejervarya species from Lesser Sunda, Indonesia and other Asian countries revealed by crossing experiments and mtDNA Cytb sequence analyses

open access: yesEcology and Evolution, 2022
To evaluate the degree of postmating isolation and the evolutionary relationships among frog species in the genus Fejervarya from Indonesia (Lesser Sunda), Bangladesh, China, and Japan, crossing experiments and molecular phylogenetic analyses were ...
Mahmudul Hasan   +6 more
doaj   +1 more source

Universal portfolios generated by rational functions [PDF]

open access: yesITM Web of Conferences, 2021
The f -divergence of Csiszar is defined for a non-negative convex function on the positive axis. A pseudo f -divergence can be defined for a convex function not satisfying the usual requirements.
Kuang Kee Seng   +2 more
doaj   +1 more source

Blind Deconvolution of Seismic Data Using f-Divergences

open access: yesEntropy, 2011
This paper proposes a new approach to the seismic blind deconvolution problem in the case of band-limited seismic data characterized by low dominant frequency and short data records, based on Csiszár’s f-divergence.
Bing Zhang, Jing-Huai Gao
doaj   +1 more source

RAD sequencing of common whelk, Buccinum undatum, reveals fine‐scale population structuring in Europe and cryptic speciation within the North Atlantic

open access: yesEcology and Evolution, 2021
Buccinum undatum is a subtidal gastropod that exhibits clear spatial variation in several phenotypic shell traits (color, shape, and thickness) across its North Atlantic distribution. Studies of spatial phenotypic variation exist for the species; however,
Jake Goodall   +5 more
doaj   +1 more source

Quantum $f$-divergence preserving maps on positive semidefinite operators acting on finite dimensional Hilbert spaces [PDF]

open access: yes, 2016
We determine the structure of all bijections on the cone of positive semidefinite operators which preserve the quantum $f$-divergence for an arbitrary strictly convex function $f$ defined on the positive halfline.
Virosztek, Dániel
core   +2 more sources

A new quantum f-divergence for trace class operators in hilbert spaces [PDF]

open access: yes, 2014
A new quantum f-divergence for trace class operators in Hilbert Spaces is introduced. It is shown that for normalised convex functions it is nonnegative. Some upper bounds are provided.
Dragomir, Sever S
core   +2 more sources

Generalizations of Levinson type inequalities via new Green functions with applications to information theory

open access: yesJournal of Inequalities and Applications, 2023
In this paper, four new Green functions are used to generalize Levinson-type inequalities for the class of 3-convex functions. The f-divergence, Renyi entropy, Renyi divergence, Shannon entropy, and the Zipf–Mandelbrot law are also used to apply the main
Awais Rasheed   +3 more
doaj   +1 more source

The phylogenetic analysis of Armenian collections of medicinal tinder polypore Fomes fomentarius (Agaricomycetes, Polyporaceae)

open access: yesItalian Journal of Mycology, 2022
The medicinal tinder polypore Fomes fomentarius is widely distributed in all floristic regions of Armenia on different woody substrates. The phylogenetic analysis of Armenian collections using ITS barcoding revealed that it is taxonomically complex ...
Susanna Badalyan   +2 more
doaj   +1 more source

f-Divergence Variational Inference

open access: yes, 2020
Dapeng Li and Neng Wan contributed equally to this paper. Supplementary material is attached. The links to code are provided in the paper, supplementary material and reference list. To appear in Advances in Neural Information Processing Systems 33 (NeurIPS 2020)
Wan, Neng, Li, Dapeng, Hovakimyan, Naira
openaire   +2 more sources

Genome-wide characterization, evolution, structure, and expression analysis of the F-box genes in Caenorhabditis

open access: yesBMC Genomics, 2021
Background F-box proteins represent a diverse class of adaptor proteins of the ubiquitin-proteasome system (UPS) that play critical roles in the cell cycle, signal transduction, and immune response by removing or modifying cellular regulators.
Ailan Wang, Wei Chen, Shiheng Tao
doaj   +1 more source

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