Results 11 to 20 of about 2,444,013 (293)
Points on nodal lines with given direction [PDF]
, 2019 We study of the directional distribution function of nodal lines for eigenfunctions of the Laplacian on a planar domain. This quantity counts the number of points where the normal to the nodal line points in a given direction. We give upper bounds for the flat torus, and compute the expected number for arithmetic random waves.
Wigman, Igor; id_orcid 0000-0002-6152-4743 +1 more
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Reconstruction of the Volterra-type integro-differential operator from nodal points
Boundary Value Problems, 2018 In this work, the Sturm–Liouville problem perturbated by a Volterra-type integro-differential operator is studied. We give a uniqueness theorem and an algorithm to reconstruct the potential of the problem from nodal points (zeros of eigenfunctions).
Baki Keskin
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Multifold nodal points in magnetic materials [PDF]
APL Materials, 2019 We describe the symmetry protected nodal points that can exist in magnetic space groups and show that only three-, six-, and eightfold degeneracies are possible (in addition to the two- and fourfold degeneracies that have already been studied). The three-
Jennifer Cano +2 more
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Uniqueness Theorem for the Inverse Aftereffect Problem and Representation the Nodal Points Form
Journal of Mathematical Extension, 2015 In this paper, we consider a boundary value problem with aftereffect on a finite interval. Then, the asymptotic behavior of the solutions, eigenvalues, the nodal points and the associated nodal length are studied.
A. Neamaty, Sh. Akbarpoor, A. Dabbaghian
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Symmetry-protected nodal points and nodal lines in magnetic materials [PDF]
Physical Review B, 2021 Nodal-point and Nodal-line structures in the dispersion of electron energy bands are characterized by their high degeneracy in certain corners or lines in the Brillouin zone (BZ). These nodal structures can also exist in the dispersion of itinerant electrons in magnetically ordered materials whose symmetry groups are anti-unitary groups called the ...
Jian Yang, Chen Fang, Zheng-Xin Liu
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Intrinsic i -Wave Altermagnetism in 2D Graphene Superlattices. [PDF]
Adv Sci (Weinh)Altermagnetism has so far been mostly proposed in transition metals compounds. Here we show that monolayer and bilayer graphene antidot superlattices realize a carbon‐based i‐wave altermagnet. This is demonstrated with a combination of symmetry analysis, first principles methods and effective models, featuring a six‐fold spin splitting texture in ...
Yu C, Lado JL.
europepmc +2 more sources
Cumhuriyet Science Journal, 2023 In this paper, we consider the inverse nodal problem for the conformable fractional diffusion operator with parameter-dependent Bitsadze–Samarskii type nonlocal boundary condition.
Yaşar Çakmak
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Nodal degeneracy of guided modes in uniaxial crystal slabs
Frontiers in Physics, 2023 We study the dispersions of the guided modes in the continuous uniaxial crystal slab waveguide and engineer their degeneracies through dielectric anisotropy.
Xinyang Pan +8 more
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Ideal topological phononic nodal chain in K2O materials class
New Journal of Physics, 2021 Nodal-chain semimetals are characterized by linked nodal rings in Brillouin zone and they have not been reported in the phonon system of atomic crystals yet. Here, based on first-principles calculations and tight-binding model analysis, we propose nearly
Y S Chen +4 more
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On nodal point sets for flux reconstruction
Journal of Computational and Applied Mathematics, 2021 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Witherden, F, Vincent, P
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