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Alla soglia della nuova meccanica

• Authors : Levi-Civita, Tullio

Subjects: Tullio Levi-Civita; Mathematics; Physics

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Umbilic Singularities of Semiclassical Approximations to Solutions of the Focusing Nonlinear Schrödinger Equation: Umbilic singularities of semiclassical approximations to solutions of the focusing nonlinear Schrödinger equation

• Authors : Suleimanov, B. I.; Shavlukov, A. M.

Subjects: catastrophe theory; Deformation of singularities; NLS equations (nonlinear Schrödinger equations)

• Source: Mathematical Notes. 116:1361-1372

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Ray trajectories and wave optics in a traversable wormhole: Optics of a minimal surface

• Authors : Dogan, Semra Gurtas; Guvendi, Abdullah; Mustafa, Omar

Subjects: Traversable wormholes; Ray trajectories; Wave propagation

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Geometric and wave optics in a BTZ optical metric-based wormhole

• Authors : Dogan, Semra Gurtas; Guvendi, Abdullah; Mustafa, Omar

Subjects: Optical wormholes; BTZ black hole; Analog gravity

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[Untitled]

• Authors : Touati, Arthur

Subjects: Einstein equations; Backreaction; Relativistic kinetic theory

• Source: Comptes Rendus. Mécanique, Vol 353, Iss G1, Pp 455-476 (2025)

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On the convexity theory of generating functions

• Authors : Loeper Grégoire; Trudinger Neil S.

Subjects: generating functions; convexity theory; optimal transportation

• Source: Advanced Nonlinear Studies, Vol 25, Iss 1, Pp 1-10 (2025)

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Geometric Optics Approximation for the Einstein Vacuum Equations: Geometric optics approximation for the Einstein vacuum equations

• Authors : Arthur Touati

Subjects: null foliation; Classes of solutions; algebraically special solutions, metrics with symmetries for problems in general relativity and gravitational theory

• Source: Communications in Mathematical Physics. 402:3109-3200

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Geometric optics expansion for weakly well-posed hyperbolic boundary value problem: The glancing degeneracy: Geometric optics expansion for weakly well-posed hyperbolic boundary value problem: the glancing degeneracy

• Authors : Benoit, Antoine; Loyer, Romain

Subjects: geometric optics expansions; hyperbolic boundary value problems; Existence problems for PDEs: global existence, local existence, non-existence

• Source: Asymptotic Analysis. 134:369-411

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Damped Response Function on a Closed Spherical Electron: Compton Scattering and Angular Frequency Modulation

• Authors : Konno, Tetsuo

Subjects: Closed Surface Theory; X-ray Diffraction; Pattern Disruption

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Gaussian Beam Ansatz for Finite Difference Wave Equations: Gaussian beam ansatz for finite difference wave equations

• Authors : Umberto Biccari; Enrique Zuazua

Subjects: Mathematics - Analysis of PDEs; finite difference; Finite difference methods for initial value and initial-boundary value problems involving PDEs

• Source: Foundations of Computational Mathematics. 25:1-54

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