Results 131 to 140 of about 320,872 (183)

Inference of weak-form partial differential equations describing migration and proliferation mechanisms in wound healing experiments on cancer cells. [PDF]

open access: yesPLoS Comput Biol
Srivastava S   +9 more
europepmc   +1 more source

Ellipticity of Some Higher Order Conformally Invariant Differential Operators

Advances in Applied Clifford Algebras, 2022
The authors prove the ellipticity of higher-order conformally invariant differential operators for the higher spin spaces in the Euclidean space. They introduce the product formulas for these operators, by using the product formulas, the authors propose a method similar to the high spin Laplace operator to exploit the structure of the conformal Lie ...
Chao Ding, Raymond Walter, John Ryan
openaire   +2 more sources

Higher order differential energy operators

IEEE Signal Processing Letters, 1995
Instantaneous signal operators /spl Upsi//sub k/(x)=x/spl dot/x/sup (k-1)/-xx/sup (k)/ of integer orders k are proposed to measure the cross energy between a signal x and its derivatives. These higher order differential energy operators contain as a special case, for k=2, the Teager-Kaiser (1990) operator. When applied to (possibly modulated) sinusoids,
P. Maragos, A. Potamianos
openaire   +1 more source

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