Results 181 to 190 of about 58,584 (207)
Some of the next articles are maybe not open access.
Upper and Lower Bounds on Generalized Fourier Coefficients
Journal of Mathematical Physics, 1964Methods are given for obtaining variational upper and lower bounds on the nth Fourier coefficient Cn2=|∫g*σUndτ/2 of a function g relative to a sequence of eigenfunctions Un. The methods differ in their ease of application and in the amount of information required concerning the eigenvalues associated with the Un. Some illustrative examples are given.
openaire +2 more sources
Ecology, evolution and spillover of coronaviruses from bats
Nature Reviews Microbiology, 2021Manuel Ruiz-Aravena +2 more
exaly
Upper and lower bounds to eigenvalues
Theoretica Chimica Acta, 1969R. P. Messmer, F. W. Birss
+4 more sources
MOF-Based Membranes for Gas Separations
Chemical Reviews, 2020Qihui Qian, Moon Joo Lee, Gang Han
exaly
Initial Upper Palaeolithic humans in Europe had recent Neanderthal ancestry
Nature, 2021Mateja Hajdinjak +2 more
exaly
SARS-CoV-2 Viral Load in Upper Respiratory Specimens of Infected Patients
New England Journal of Medicine, 2020Mingxing Huang, Zhongsi Hong, Jinyu Xia
exaly
Virological assessment of hospitalized patients with COVID-2019
Nature, 2020Roman Wölfel +2 more
exaly

