Results 31 to 40 of about 60,854 (281)

Qualitatively Stable Nonstandard Finite Difference Scheme for Numerical Solution of the Nonlinear Black–Scholes Equation

open access: yesJournal of Mathematics, 2021
In this paper, we use a numerical method for solving the nonlinear Black–Scholes partial differential equation of the European option under transaction costs, which is based on the nonstandard discretization of the spatial derivatives.
Mohammad Mehdizadeh Khalsaraei   +3 more
doaj   +1 more source

On Nonstandard Vacuua in Minimal Supergravity Models [PDF]

open access: yesJournal of High Energy Physics, 2003
The plethora of scalar fields participating in the formulation of a softly broken supersymmetric theory can threat the stability of the standard vacuum. The generic situation is twofold. Directions in scalar field space may exist along which the potential becomes unbounded from below or local minima deeper than the standard one are likely to appear ...
Gioutsos, D. V., Vayonakis, C. E.
openaire   +3 more sources

Integrable cosmological models with an additional scalar field

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
We consider modified gravity cosmological models that can be transformed into two-field chiral cosmological models by the conformal metric transformation.
Vsevolod R. Ivanov, Sergey Yu. Vernov
doaj   +1 more source

WZNW Models from Non-Standard Bilinear Forms [PDF]

open access: yes, 1996
We study the WZNW models based on nonstandard bilinear forms. We approach the problem from algebraic, perturbative and functional exact methods. It is shown that even in the case of integer $k$ we can find irrational CFT's.
Arfaei, H., Parvizi, S.
core   +2 more sources

A New Numerical Scheme for Time Fractional Diffusive SEAIR Model with Non-Linear Incidence Rate: An Application to Computational Biology

open access: yesFractal and Fractional, 2022
In this paper, we propose a modified fractional diffusive SEAIR epidemic model with a nonlinear incidence rate. A constructed model of fractional partial differential equations (PDEs) is more general than the corresponding model of fractional ordinary ...
Yasir Nawaz   +2 more
doaj   +1 more source

Galilean symmetry in generalized abelian Schr\"odinger-Higgs models with and without gauge field interaction [PDF]

open access: yes, 2015
We consider a generalization of nonrelativistic Schr\"odinger-Higgs Lagrangian by introducing a nonstandard kinetic term. We show that this model is Galilean invariant, we construct the conserved charges associated to the symmetries and realize the ...
Sourrouille, Lucas
core   +2 more sources

Racial disparities in receipt of standard chemoradiation in anal squamous cell carcinoma, an analysis of the National Cancer Database

open access: yesCancer Medicine, 2021
Background Standard treatment for locally advanced anal squamous cell carcinoma (SCC) consists of concurrent chemoradiation. We evaluated whether racial differences exist in the receipt of standard treatment and its association with survival.
Shelly X. Bian   +2 more
doaj   +1 more source

A Nonstandard Supersymmetric KP Hierarchy [PDF]

open access: yes, 1994
We show that the supersymmetric nonlinear Schr\"odinger equation can be written as a constrained super KP flow in a nonstandard representation of the Lax equation.
Brunelli, J. C., Das, A.
core   +2 more sources

Nonstandard foundations of equilibrium search models [PDF]

open access: yesJournal of Economic Theory, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Non-standard neutrino interactions in light mediator models at reactor experiments

open access: yesJournal of High Energy Physics, 2023
Compared to other neutrino sources, the huge anti-neutrino fluxes at nuclear reactor based experiments empower us to derive stronger bounds on non-standard interactions of neutrinos with electrons mediated by light scalar/vector mediators.
Bhaskar Dutta   +4 more
doaj   +1 more source

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