Results 121 to 130 of about 6,302 (292)
Spectral stability of undercompressive shock profile solutions of a modified KdV-Burgers equation
Electronic Journal of Differential Equations, 2007 It is shown that certain undercompressive shock profile solutions of the modified Korteweg-de Vries-Burgers equation $$ partial_t u + partial_x(u^3) = partial_x^3 u + alpha partial_x^2 u, quad alpha geq 0 $$ are spectrally stable when $alpha$ is ...
Jeff Dodd
doaj
Perturbation of embedded eigenvalues [PDF]
Bulletin of the American Mathematical Society, 1972 openaire +3 more sources
Finite and continuous perturbations of matrix eigenvalues
Applied Mathematics Letters, 1998 AbstractAn elementary proof is given that some well-known formulae for derivatives of eigenvalues of matrix-valued functions hold under weaker hypotheses than are required by the usual proofs. The relationship between continuous and finite perturbations is also discussed.
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ChemPhysChem, EarlyView.A double‐bonded chalcogen bond donor exhibits both a σ‐hole and a π‐hole on the same atom. These unique σ/π‐holes can be tuned based on molecular composition to be directional or semidirectional depending on the donor–acceptor bonding configuration, which differs from the behavior of other electropositive holes.
Kirk A. French +3 more
wiley +1 more source
ChemPhysChem, EarlyView.Reaction networks yielding spontaneous mirror‐symmetry breaking (SMSB) are revisited. All include a first‐order enantioselective autocatalysis, which, on its own, is unable to lead to SMSB. The coupling with the so‐called ancillary reactions (racemization, mutual inhibition, etc.) makes the racemic state unstable.
Josep M. Ribó +2 more
wiley +1 more source
Corporate Social Responsibility and Environmental Management, EarlyView.ABSTRACT There is growing demand for environmental sustainability in fashion supply chains (FSC), particularly to face risks related to climate change and pollution of suppliers in developing nations. Hence, supply chain (SC) actors must reconcile environmental sustainability from two perspectives: waste management and pollution/emissions.
Awlad Hosen Sagar +2 more
wiley +1 more source
Existence and perturbation of principal eigenvalues for a periodic-parabolic problem
Electronic Journal of Differential Equations, 2000 We give a necessary and sufficient condition for the existence of a positive principal eigenvalue for a periodic-parabolic problem with indefinite weight function.
Daniel Daners
doaj
An algorithm for the eigenvalue perturbation problem [PDF]
, 2000 Claude-Pierre Jeannerod
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The Depositional Record, EarlyView.Sedimentological and geochemical characteristics are used to reconstruct sedimentation dynamics and erosional processes. Several rapidly deposited layers are characterised over changing depositional environments during the Late Holocene, from a phase when the lake was connected to the sea to a more stable state conducive to varve formation.
Milena S. Kury +6 more
wiley +1 more source
Determination of eigenvalues by divergent perturbation series
Advances in Mathematics, 1971 We study eigenvalue problems for operators H0 + βV, where the perturbation series is finite order by order but divergent for any β. We prove that, under suitable conditions, the series nevertheless determines the level uniquely [and is not merely asymptotic] because some control of the remainder term, RN, uniform in N is present; in fact, for β real ...
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