Zobrazeno 1 - 10
of 6 409
pro vyhledávání: '"A. A. Nekrasov"'
The structural analogue of iron-based superconductors the BaMn$_2$P$_2$ and BaMn$_2$As$_2$ compounds under hydrostatic pressure upto 140 GPa were studied within the framework of DFT+U. The transition from an antiferromagnetic (AFM) insulator to an an
Externí odkaz:
http://arxiv.org/abs/2406.03904
Autor:
Grigoriev, P. D., Pavlov, N. S., Nekrasov, I. A., Shein, I. R., Sadakov, A. V., Sobolevskiy, O. A., Maltsev, E., Perez, N., Veyrat, L., Pudalov, V. M.
Layered topologically non-trivial and trivial semimetals with AFM-type ordering of magnetic sublattice are known to exhibit a negative magnetoresistance that is well correlated with AFM magnetization changes in a magnetic field. This effect is report
Externí odkaz:
http://arxiv.org/abs/2405.18046
Autor:
Igoshev, Petr A., Nekrasov, Igor A.
Magnetic phase separation and magnetocaloric effect is considered within the Hubbard model for face-centered cubic (fcc) lattice with giant van Hove singularity of electron spectrum at band bottom. Within the Hartree-Fock approximation it is shown th
Externí odkaz:
http://arxiv.org/abs/2405.10794
Autor:
Grekov, Andrey, Nekrasov, Nikita
We review the limit shape problem for the Plancherel measure and its generalizations found in supersymmetric gauge theory instanton count. We focus on the measure, interpolating between the Plancherel measure and uniform measure, a U(1) case of N=2*
Externí odkaz:
http://arxiv.org/abs/2403.07168
We explore the $\textit{difference Langlands correspondence}$ using the four dimensional ${\mathcal{N}}=2$ super-QCD. Surface defects and surface observables play the crucial role. As an application, we give the first construction of the full set of
Externí odkaz:
http://arxiv.org/abs/2402.13888
Autor:
Grekov, Andrei, Nekrasov, Nikita
Affine analogues of the Q-functions are constructed using folded instantons partition functions. They are shown to be the solutions of the quantum spectral curve of the N-body elliptic Calogero-Moser (eCM) system, the quantum Krichever curve. They al
Externí odkaz:
http://arxiv.org/abs/2310.04571
Autor:
Lubkov, Roman, Nekrasov, Ilia
We establish two characterizations of an algebraic group scheme $\bigwedge^m GL_n$ over $\mathbb{Z}$. Geometrically, the scheme $\bigwedge^m GL_n$ is a stabilizer of an explicitly given invariant form or, generally, an invariant ideal of forms. Algeb
Externí odkaz:
http://arxiv.org/abs/2310.00101
Accurately perceiving and tracking instances over time is essential for the decision-making processes of autonomous agents interacting safely in dynamic environments. With this intention, we propose Mask4Former for the challenging task of 4D panoptic
Externí odkaz:
http://arxiv.org/abs/2309.16133
We introduce some new symmetric tensor categories based on the combinatorics of trees: a discrete family $\mathcal{D}(n)$, for $n \ge 3$ an integer, and a continuous family $\mathcal{C}(t)$, for $t \ne 1$ a complex number. The construction is based o
Externí odkaz:
http://arxiv.org/abs/2308.06660
Autor:
Jaric, Stefan, Kudriavtseva, Anastasiia, Nekrasov, Nikita, Orlov, Alexey V., Komarov, Ivan A., Barsukov, Leonty A., Gadjanski, Ivana, Nikitin, Petr I., Bobrinetskiy, Ivan
Measuring NT-proBNP biomarker is recommended for preliminary diagnostics of the heart failure. Recent studies suggest a possibility of early screening of biomarkers in saliva for non-invasive identification of cardiac diseases at the point-of-care. H
Externí odkaz:
http://arxiv.org/abs/2307.16692