Results 51 to 60 of about 45,469 (189)

Estimate for Initial MacLaurin Coefficients of Certain Subclasses of Bi-univalent Functions [PDF]

, 2015
In this paper, estimates for second and third MacLaurin coefficients of certain subclasses of bi-univalent functions in the open unit disk defined by convolution are determined, and certain special cases are also indicated.
Alkahtani, Badr, Bulboaca, Teodor, Goswami, Pranay   +2 more
core   +2 more sources

Entrepreneurship of Farmers in Siedlce County

Zagadnienia Ekonomiki Rolnej
Farmers’ entrepreneurship in Poland has both a historical and economic basis and stems from personality traits. It is supported by national and EU projects and funding. Legal conditions also favor farmers’ entrepreneurial activity. The aim of the article
Rymuza Katarzyna, Bombik Antoni, Kacprzak Tomasz   +2 more
doaj   +1 more source

Dissecting tocopherols content in maize (Zea mays L.), using two segregating populations and high-density single nucleotide polymorphism markers

BMC Plant Biology, 2012
Background Tocopherols, which are vitamin E compounds, play an important role in maintaining human health. Compared with other staple foods, maize grains contain high level of tocopherols.
Shutu Xu, Dalong Zhang, Ye Cai, Yi Zhou, Shah Trushar, Ali Farhan, Qing Li, Zhigang Li, Weidong Wang, Jiansheng Li, Xiaohong Yang, Jianbing Yan   +11 more
doaj   +1 more source

Optimal board independence with gray independent directors

Business Research Quarterly, 2022
Based on the optimal board independence theory, we analyze how Spanish listed firms determine the presence of genuine and gray independent directors. We classify independents as gray whenever they do not satisfy formal independence requirements.
Bartolomé Pascual-Fuster, Rafel Crespí-Cladera   +1 more
doaj   +1 more source

Integration of a generalized H\'enon-Heiles Hamiltonian

, 2001
The generalized H\'enon-Heiles Hamiltonian $H=1/2(P_X^2+P_Y^2+c_1X^2+c_2Y^2)+aXY^2-bX^3/3$ with an additional nonpolynomial term $\mu Y^{-2}$ is known to be Liouville integrable for three sets of values of $(b/a,c_1,c_2)$.
C. Verhoeven, Cosgrove C. M., Drach J., Kaup D. J., M. Musette, R. Conte   +5 more
core   +1 more source

Jordanian deformation of the open XXX-spin chain

, 2009
The general solution to the reflection equation associated with the jordanian deformation of the SL(2) invariant Yang R-matrix is found. The same K-matrix is obtained by the special scaling limit of the XXZ-model with general boundary conditions.
A. Doikou, D. Arnaudon, E. K. Sklyanin, E. K. Sklyanin, H. J. Vega de, I. V. Cherednik, L. A. Takhtadzhan, L. D. Faddeev, L. Freidel, M. Gerstenhaber, M. Henkel, M. Jimbo, N. Manojlović, P. P. Kulish, P. P. Kulish, P. P. Kulish, P. P. Kulish, P. P. Kulish, P. P. Kulish, P. P. Kulish, P. P. Kulish, S. Ghoshal, S. M. Khoroshkin, T. Inami, V. Chari, V. G. Drinfel’d, V. G. Drinfel’d, Z. Nagy, Z. Nagy   +28 more
core   +1 more source

Decentralised and Centralised Fixed Structure H∞ Robust Loop Shaping for the MIMO Microsurgical Manipulation Based on PSOGSA

IET Control Theory &Applications, Volume 20, Issue 1, January/December 2026.
This paper presents a robust H∞ decentralised and centralised control approach for a microsurgical manipulator using Particle Swarm Optimisation and Gravitational Search Algorithm (PSOGSA). The proposed fixed‐structure Proportional‐Integral‐Derivative (PID)‐based controllers address implementation challenges of conventional high‐order H∞ controllers ...
Somyot Kaitwanidvilai, Poom Konghuayrob, Hisayuki Aoyama   +2 more
wiley   +1 more source

Noisy weak-lensing convergence peak statistics near clusters of galaxies and beyond

, 2010
Taking into account noise from intrinsic ellipticities of source galaxies, in this paper, we study the peak statistics in weak-lensing convergence maps around clusters of galaxies and beyond.
Albrecht, Bond, Bridle, Clowe, Erben, Fan, Hennawi, Huanyuan Shan, Jiayi Liu, Ma, Mandelbaum, Marian, Marian, Maturi, Mo, Schneider, Sun, Tang, Umetsu, Wang, White, Zhang, Zuhui Fan   +22 more
core   +1 more source

Optimized Nonlinear Grid‐Forming Controller Based on Feedback Linearization

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
1. Proposing a feedback linearization method for a nonlinear GFM controller. 2. Eliminating the coupling between active and reactive power controllers. 3. Improving the GFM controller and presenting grid‐friendly characteristics. ABSTRACT The grid‐forming (GFM) converters connected renewable energy (RE) to the power grid, which can offer inertia and ...
Bingwei Jiang, Yongning Chi, Weifang Lin, Yiwen Fan   +3 more
wiley   +1 more source

Gradient estimates and Harnack inequalities of a parabolic equation under geometric flow

, 2019
In this paper, we consider a manifold evolving by a general geometric flow and study parabolic equation \[ (\Delta -q(x,t)-\partial_t)u(x,t)=A(u(x,t)),\quad (x,t)\in M\times [0,T].
Zhao, Guangwen
core   +1 more source