Results 211 to 220 of about 35,914 (259)

LacI strikes a balance between stability and inducibility. [PDF]

open access: yesNucleic Acids Res
Yuan J   +7 more
europepmc   +1 more source

Pseudospectra of the Convection-Diffusion Operator [PDF]

open access: yesSIAM Journal on Applied Mathematics, 1994
Summary: The spectrum of the simplest 1D convection-diffusion operator is a discrete subset of the negative real axis, but the pseudospectra are regions in the complex plane bounded approximately by parabolas. Put another way, the norm of the resolvent is exponentially large as a function of the Péclet number throughout a certain approximately ...
Lloyd N Trefethen
exaly   +3 more sources

Time operator for diffusion [PDF]

open access: possibleChaos, Solitons & Fractals, 2000
We extend the concept of time operator for general semigroups and construct a non-self-adjoint time operator for the diffusion equation which is intertwined with the unilateral shift. We obtain the spectral resolution, the age eigenstates and a new shift representation of the solution of the diffusion equation.
Antoniou, Ioannis   +3 more
openaire   +1 more source

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