Results 31 to 40 of about 564,129 (313)

Exact results for the zeros of the partition function of the Potts model on finite lattices

open access: yes, 1999
The Yang-Lee zeros of the Q-state Potts model are investigated in 1, 2 and 3 dimensions. Analytical results derived from the transfer matrix for the one-dimensional model reveal a systematic behavior of the locus of zeros as a function of Q.
Baxter   +21 more
core   +1 more source

Generalizations of the Eneström–Kakeya Theorem Involving Weakened Hypotheses

open access: yesAppliedMath, 2022
The well-known Eneström–Kakeya Theorem states that, for P(z)=∑ℓ=0naℓzℓ, a polynomial of degree n with real coefficients satisfying 0≤a0≤a1≤⋯≤an, then all the zeros of P lie in |z|≤1 in the complex plane. Motivated by recent results concerning an Eneström–
Robert Gardner, Matthew Gladin
doaj   +1 more source

REFINEMENT OF ERD ¨OS-LAX INEQUALITY FOR N-OPERATOR

open access: yesПроблемы анализа
Let 𝒫_𝑛 be the space of all polynomials of degree less than or equal to 𝑛. In this paper, we establish a refinement of Erd¨os-Lax inequality in which the classical derivative (as an operator on 𝒫_𝑛) is replaced by a 𝐵𝑛 operator.
F. A. Bhat
doaj   +1 more source

INEQUALITIES CONCERNING B-OPERATORS

open access: yesПроблемы анализа, 2016
Let P_n be the class of polynomials of degree at most n. Rahman introduced the class B_n of operators B that map P_n into itself. In this paper we prove some results concerning such operators and thereby obtain generalizations of some well known ...
W. M. Shah, A. Liman
doaj   +1 more source

Zeroing in on Net-Zero

open access: yesUniversity of Colorado Law Review, 2023
One hundred and ninety-seven nations endorsed a target of net-zero greenhouse gas (GHG) emissions by midcentury in the 2021 Glasgow Climate Pact. As countries around the world have begun to develop their plans for deep decarbonization, it has become evident that the private sector will need to deliver much of what is required for the transition to an ...
Esty, Daniel   +1 more
openaire   +1 more source

Algorithms of predictor-corrector type with convergence and stability analysis for solving nonlinear systems

open access: yesAIMS Mathematics
Many researchers have proposed iterative algorithms for nonlinear equations and systems of nonlinear equations; similarly, in this paper, we developed two two-step algorithms of the predictor-corrector type.
Dalal Khalid Almutairi   +7 more
doaj   +1 more source

Higher Monotonicity Properties for Zeros of Certain Sturm-Liouville Functions

open access: yesMathematics, 2023
In this paper, we consider the differential equation y″+ω2ρ(x)y=0, where ω is a positive parameter. The principal concern here is to find conditions on the function ρ−1/2(x) which ensure that the consecutive differences of sequences constructed from the ...
Tzong-Mo Tsai
doaj   +1 more source

The Yang-Lee zeros of the 1D Blume-Capel model on connected and non-connected rings

open access: yes, 2005
We carry out a numerical and analytic analysis of the Yang-Lee zeros of the 1D Blume-Capel model with periodic boundary conditions and its generalization on Feynman diagrams for which we include sums over all connected and non-connected rings for a given
Ambjorn J   +27 more
core   +1 more source

Hematopoietic (stem) cells—The elixir of life?

open access: yesFEBS Letters, EarlyView.
The aging of HSCs (hematopoietic stem cells) and the blood system leads to the decline of other organs. Rejuvenating aged HSCs improves the function of the blood system, slowing the aging of the heart, kidney, brain, and liver, and the occurrence of age‐related diseases.
Emilie L. Cerezo   +4 more
wiley   +1 more source

The zinc finger domains of PARP‐1 are selectively and potently inhibited by the Au(I)‐based drugs sodium aurothiomalate and aurothioglucose

open access: yesFEBS Letters, EarlyView.
PARP‐1 is a key enzyme in the DNA damage response, and its inhibition induces cancer cell death via synthetic lethality. Au(I)‐based drugs, such as aurothioglucose and sodium aurothiomalate, block PARP‐1's DNA‐dependent activity by targeting its zinc finger domains.
Uliana Bashtanova, Melinda Jane Duer
wiley   +1 more source

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