Results 71 to 80 of about 3,603,035 (255)
800 conics in a smooth quartic surface [PDF]
, 2021 We construct an example of a smooth spatial quartic surface that contains 800 irreducible conics.Comment: The paper reflects the considerable development (explicit equations by X. Roulleau and B.
Degtyarev, Alex
core +2 more sources
The Closest and Farthest Points to an Affine Ellipse or Ellipsoid
Tsinghua Science and Technology, 2012 Affine ellipses/ellipsoids based bounding volumes are widely used in various graphics applications, such as ray tracing and collision detection. They provide a much tighter fit than the regular ellipses/ellipsoids.
Shuangmin Chen +3 more
doaj +1 more source
Real‐Time Biomass Estimation in High‐Density Yeast Fermentations Using Soft Sensor Modeling
Biotechnology and Bioengineering, EarlyView.Accurate biomass measurements, both offline and online, are essential to improve prediction and control in yeast fermentation. This study develops regression‐based predictive models to correlate offline measurements (Dry Cell Weight and OD600 from a spectrophotometer) with online OD860 probe signals to provide accurate real‐time biomass estimations and
Ana G. Del Hierro +3 more
wiley +1 more source
ChemPhysChem, Volume 26, Issue 6, March 15, 2025.Linear infrared spectroscopy combined with isotope labeling and density functional theory unravels the origin of a Fermi triad in a multifunctional vibrational chromophore. Ultrafast 2DIR‐spectroscopy reports directly on the dynamics and the intramolecular vibrational energy flow pathways in the isotopically deperturbed system. Abstract Infrared probes
Claudia Gräve +4 more
wiley +1 more source
A Remark for the Hyers–Ulam Stabilities on n-Banach Spaces
Axioms, 2020 In this article, we deal with stabilities of several functional equations in n-Banach spaces. For a surjective mapping f into a n-Banach space, we prove the generalized Hyers–Ulam stabilities of the cubic functional equation and the quartic functional ...
Jaeyoo Choy, Hahng-Yun Chu, Ahyoung Kim
doaj +1 more source
The Mixed Cubic-Quartic Functional Equation
Annals of the Alexandru Ioan Cuza University - Mathematics, 2015 AbstractIn this paper, we obtain the general solution of the following generalized mixed cubic and quartic functional equation f(x + kx) + f(x − ky) = k2{f(x + y) + f(x−y)}−2(k2−1)f(x)−2k2(k2−1)f(y)+ 1/4 k2(k2−1)f(2y), for fixed integers k with k ≠ 0,±1. The Hyers-Ulam stability problem for the mentioned functional equation is also proved.
Bodaghi, A., Kang, D., Rassias, J. M.
openaire +2 more sources
A General Theorem on the Stability of a Class of Functional Equations Including Quartic-Cubic-Quadratic-Additive Equations [PDF]
, 2018 We prove general stability theorems for n-dimensional quartic-cubic-quadratic-additive type functional equations of the form ∑ i = 1 ℓ c i f a i 1 x 1 + a i 2 x 2 + ⋯ + a i n x n = 0 .
Soon-Mo Jung, Yang-Hi Lee
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A Method to Assess Social Sustainability of Multi‐Tier Supply Chains in the Textile Industry
Corporate Social Responsibility and Environmental Management, EarlyView.ABSTRACT The EU corporate sustainability due diligence directive mandates human rights due diligence for organizations within their global supply chains. Social sustainability is highly critical in textile supply chains due to widespread poor working conditions.
Francesco Olivero +4 more
wiley +1 more source
Spontaneous breaking of U(1) symmetry in coupled complex SYK models
Journal of High Energy Physics, 2020 As shown in [1], two copies of the large N Majorana SYK model can produce spontaneous breaking of a Z 2 symmetry when they are coupled by appropriate quartic terms. In this paper we similarly study two copies of the complex SYK model coupled by a quartic
Igor R. Klebanov +3 more
doaj +1 more source
Lines on K3 quartic surfaces in characteristic 3 [PDF]
, 2020 We investigate the number of straight lines contained in a K3 quartic surface \(X\) defined over an algebraically closed field of characteristic 3. We prove that if \(X\) contains 112 lines, then \(X\) is projectively equivalent to the Fermat quartic ...
Veniani, Davide Cesare
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