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12 207 (0,207s) •

Result

Application of the logarithmic strain formulation in nonlinear transient dynamics.

Attention was focussed on the implications of the logarithmic description on the transient solutions in nonlinear continuum dynamics. A general form of the strain energy function in terms oft he logarithmic strain was consi...

BA - Obecná matematika

  • 2001
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  • D
Result

Schrodinger Equations with Logarithmic Self-Interactions: From Antilinear PT-Symmetry to the Nonlinear Coupling of Channels

. Firstly, an elementary single-channel version of the nonlinear logarithmic model. This turned attention to the nonlinear Schrodinger equations in which the interaction term) is assumed logarithmic, and some of th...

Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

  • 2017
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  • Jimp
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  • Link
Result

Matrix logarithmic quantum wave equation

Quantum wave equations with logarithmic nonlinearity are motivated by the conventional (linear) quantum formalism and theory of quantum liquids. The matrix generalization of the logarithmic equation is introduced, which is ...

Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

  • 2018
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  • D
Result

Fractional Choquard logarithmic equations with Stein-Weiss potential

In the present paper, we are concerned with the following fractional $ p $-Laplacian Choquard logarithmic equation. Under mild conditions and combining variational carried by the competition of the Choquard logarithmic term and the ...

Applied mathematics

  • 2023
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  • Jimp
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  • Link
Result

Pitfalls in nonlinear elasticity.

Assumed linear dependence of 2nd Piola-Kirchhoff stress tensor on Green-Lagrange strain tensor leads to a paradox even in simplest case of one-dimonsional compression. Such an extension of Hooke s law to nonlinear elasticity is therefore dub...

BM - Fyzika pevných látek a magnetismus

  • 2001
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  • D
Result

A Logarithmic Strain Decomposition for Modeling of Trabecular Bone Subjected to Large Compressive Strains

The geometrical nonlinearities may play an important role in the modeling of osteoporotic trabecular bone. The magnitude of geometrically nonlinear effects depends of a fully nonlinear model of trabecular bone (including ma...

JJ - Ostatní materiály

  • 2012
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Result

Explaining large electromagnetic logarithms from loops of inflationary gravitons

Recent progress on nonlinear sigma models on de Sitter background has permitted the resummation of large inflationary logarithms by combining a variant of Starobinsky’s stochastic formalism with a variant of the renormalization grou...

Particles and field physics

  • 2023
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  • Jimp
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  • Link
Result

Leading logarithms in the anomalous sector of two-flavour QCD

We add the Wess-Zumino-Witten term to the N = 3 massive nonlinear sigma model and study the leading logarithms in the anomalous sector. We obtain the leading logarithms to six loops for pi(0) -> gamma*gamma* and to five loo...

BF - Elementární částice a fyzika vysokých energií

  • 2012
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  • Jx
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  • Link
Result

Quantum square-well with logarithmic central spike

Singular repulsive barrier V (x) = -g ln(vertical bar x vertical bar) inside a square-well is interpreted and studied as a linear analog of the state-dependent interaction L-eff(x) = -g ln[psi* (x)psi(x)] in nonlinear Schrodinger equation. I...

Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

  • 2018
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  • Jimp
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  • Link
Result

Comparision of Measurements Method for Analysis Electro-acoustic Systems with Non-linearities

The great level of excitation of electro-acoustic systems may cause a nonlinear for nonlinear systems and a method utilizing sweep sine wave signals, which are compared signal. Then a nonlinear system is represented by a mu...

JA - Elektronika a optoelektronika, elektrotechnika

  • 2007
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