Results 71 to 80 of about 303,599 (157)
Mixed motives and linear forms in the Catalan constant
Journal of the London Mathematical Society, Volume 114, Issue 4, October 2026.Abstract We first give a geometric construction of a two‐dimensional mixed motive over Q${\mathbb {Q}}$ with the Catalan constant G=1−1/32+1/52−1/72+⋯${\mathbf {G}}=1-1/3^2+1/5^2-1/7^2+\cdots$ as a period. We then use this motive to obtain a supply of linear forms in 1 and G${\mathbf {G}}$.
Payman Eskandari +2 more
wiley +1 more source
Optimal bounds for the Kobayashi distance near C2$\mathcal {C}^2$‐smooth boundary points
Journal of the London Mathematical Society, Volume 114, Issue 4, October 2026.Abstract It is shown that the optimal upper and lower bounds for the Kobayashi distance near C2,α$\mathcal {C}^{2,\alpha }$‐smooth strongly pseudoconvex boundary points obtained in Kosiński, Nikolov, and Ökten [Adv. Math. 478 (2025), 110388] remain true in the general C2$\mathcal {C}^2$‐smooth strongly pseudoconvex setting.
Nikolai Nikolov, Pascal J. Thomas
wiley +1 more source
The Journal of Physiology, Volume 604, Issue 19, Page 8100-8111, 1 October 2026.Abstract figure legend Time‐resolved estimation of cardiac rhythmicity parameters. A pipeline is shown for the estimation of the fluctuating cardiac parameters, based on the Poincaré plot. The Poincaré plot illustrates the successive changes in interbeat intervals (IBI).
Diego Candia‐Rivera +3 more
wiley +1 more source
Physiological Reports, Volume 14, Issue 19, October 2026.Nonlinear heart rate variability differed by age and sex in typically developing youth. Nonlinear measures were associated with parasympathetic indices. Figure generated in Biorender. Abstract Linear heart rate variability (HRV) quantifies heart rate (HR) changes due to stochastic processes while nonlinear HRV captures the complexity of the HR ...
Alexs A. Matias +4 more
wiley +1 more source
La dynamique de l'électron par Henri Poincaré (The dynamics of the electron by Henri Poincaré)
, 1913 An original of the lecture notes belongs to Germain Rousseaux.Lectures given by Henri Poincaré in July 1912 at the Ecole Supérieure des Postes et des Télégraphes. Suppléments aux Annales des Postes, Télégraphes et Téléphones. Mars 1913, A. Dumas Editeur,
Poincaré, Henri
core
, 1909 Poincaré Raymond. Opinion de M. Raymond Poincaré, Membre de l’Académie Française, ancien Ministre de l’instruction Publique. In: Manuel général de l'instruction primaire : journal hebdomadaire des instituteurs. 77e année, tome 46, 1909. pp.
Poincaré, Raymond
core
Kelvin waves over a differentially rotating spherical shell
Astronomy & AstrophysicsContext. Be stars are currently viewed as B-type stars surrounded by a disc fuelled by the star itself during episodic excretion events. The origin of these events is poorly understood. Aims. This study aims to determine whether surface equatorial Kelvin
Boismard T., Rieutord M.
doaj +1 more source
An optimization study of a multiple-row pin-vented brake disc to promote brake cooling using computational fluid dynamics [PDF]
, 2009 Brake disc cooling is an important area of research for high-performance brake disc manufacturers, users as well as academia. In high-demand braking applications, vented discs are increasingly being used as these are considered to have high heat ...
Palmer, E. +5 more
core +1 more source
La responsabilité civile des instituteurs, par M. Raymond Poincaré, sénateur, ancien ministre
, 1907 Poincaré Raymond. La responsabilité civile des instituteurs, par M. Raymond Poincaré, sénateur, ancien ministre. In: Manuel général de l'instruction primaire : journal hebdomadaire des instituteurs. 75e année, tome 44, 1907. pp.
Poincaré, Raymond
core
Global dynamics of a modified hybrid Van der Pol-Rayleigh oscillator II
Electronic Journal of Differential EquationsIn this article, we study a modified hybrid Van der Pol-Rayleigh oscillator. We consider bifurcation diagrams and global phase portraits in the Poincare disc under some restrictions on the parameters.
Yuhuan Lu, Rui Zhang
doaj