Benedetti, Vladimiro Filippini, Sara Manivel, Laurent Tanturri, Fabio

In [BFMT17] we introduced orbital degeneracy loci as generalizations of degeneracy loci of morphisms between vector bundles. Orbital degeneracy loci can be constructed from any stable subvariety of a representation of an algebraic group. In this paper we show that their canonical bundles can be conveniently controlled in the case where the affine c...

Goegebeur, Yuri Guillou, Armelle Ho, Nguyen Khanh Le Qin, Jing

The marginal expected shortfall is an important risk measure in finance, which has been extended recently in the case where the random variables of main interest (Y^{(1)}, Y^{(2)}) are observed together with a covariate X \in R^d. This leads to the concept of conditional marginal expected shortfall. It is defined as \theta_p(x_0)=E[Y^{(1)} | Y^{(2)...

Sadefo Kamdem, Jules Jamaï Mouhtadi, Mehdi

This paper deals with the causal relationship analysis between Gross Domestic Product (GDP), Energy Intensity (EI) and CO2 emissions in Morocco from 1975 to 2017, by means of Johansen cointegration tests and Granger causality tests based on a multivariate Vector Error Correction Modeling. Results indicate that there is a set of bi-directional causa...

Aaij, R. Beteta, C. Abellán Ackernley, T. Adeva, B. Adinolfi, M. Afsharnia, H. Aidala, C. A. Aiola, S. Ajaltouni, Z. Akar, S.
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Using $pp$ collision data corresponding to an integrated luminosity of $5.4\,{\rm fb}^{-1}$ collected with the LHCb detector at a center-of-mass energy of $13\,{\rm TeV}$, the $B^0\to D^-D^+K^+\pi^-$ decay is studied. A new excited $D_s^+$ meson is observed decaying into the $D^+K^+\pi^-$ final state with large statistical significance. The pole ma...

Vilmart, Renaud

We show that the formalism of "Sum-Over-Path" (SOP), used for symbolically representing linear maps or quantum operators, together with a proper rewrite system, has a structure of dagger-compact PROP. Several consequences arise from this observation:-Morphisms of SOP are very close to the diagrams of the graphical calculus called ZH-Calculus, so we...

Lu, Xuhui Jia, Yingmin Fu, Yongling Matsuno, Fumitoshi

The paper puts forward a novel projection function on Special Orthogonal Group, to handle the attitude constraint of the spacecraft. The properties of this projection function are rigorously proved. By virtue of the designed projection function, the boresight vector of the sensitive instrument of the spacecraft is mapped to the corresponding reduce...

Ashurbekova, Karina Usseglio-Carleve, Antoine Forbes, Florence Achard, Sophie

When estimating covariance matrices, traditional sample covariance-based estimators are straightforward but suffer from two main issues: 1) a lack of robustness, which occurs as soon as the samples do not come from a Gaussian distribution or are contaminated with outliers and 2) a lack of data when the number of parameters to estimate is too large ...

Giustino, Feliciano Lee, Jin Hong Trier, Felix Bibes, Manuel Winter, Stephen M Valentí, Roser Son, Young-Woo Taillefer, Louis Heil, Christoph Figueroa, Adriana I.
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In recent years, the notion of Quantum Materials has emerged as a powerful unifying concept across diverse fields of science and engineering, from condensed-matter and cold atom physics to materials science and quantum computing. Beyond traditional quantum materials such as unconventional superconductors, heavy fermions, and multiferroics, the fiel...

Barthonnat, Céline Beauchamps, Cécile Contat, Odile Stérin, Anne-Laure Vautrin, Céline

Boos, C. Ganahl, C. J. Lajkó, M. Nataf, P. Läuchli, A. M. Penc, K. Schmidt, K. P. Mila, F.

We provide numerical evidence in favor of spontaneous chiral symmetry breaking and the concomitant appearance of an Abelian chiral spin liquid for three-component fermions on the triangular lattice described by an SU(3) symmetric Hubbard model with hopping amplitude $-t$ ($t>0$) and on-site interaction $U$. This chiral phase is stabilized in the Mo...