Results 21 to 30 of about 237,114 (316)

A domain free of the zeros of the partial theta function

open access: yesМатематичні Студії, 2023
The partial theta function is the sum of the series \medskip\centerline{$\displaystyle\theta (q,x):=\sum\nolimits _{j=0}^{\infty}q^{j(j+1)/2}x^j$,} \medskip\noi where $q$ is a real or complex parameter ($|q|
V. Kostov
doaj   +1 more source

Lee-Yang-Fisher zeros for DHL and 2D rational dynamics, II. Global Pluripotential Interpretation [PDF]

open access: yes, 2019
In a classical work of the 1950's, Lee and Yang proved that for fixed nonnegative temperature, the zeros of the partition functions of a ferromagnetic Ising model always lie on the unit circle in the complex magnetic field.
Bleher, Pavel   +2 more
core   +2 more sources

Yang-Lee zeros for a nonequilibrium phase transition [PDF]

open access: yes, 2002
Equilibrium systems which exhibit a phase transition can be studied by investigating the complex zeros of the partition function. This method, pioneered by Yang and Lee, has been widely used in equilibrium statistical physics.
Alves N A   +17 more
core   +1 more source

The Two-Layer Hierarchical Distribution Model of Zeros of Riemann’s Zeta Function along the Critical Line

open access: yesInformation, 2021
This article numerically analyzes the distribution of the zeros of Riemann’s zeta function along the critical line (CL). The zeros are distributed according to a hierarchical two-layered model, one deterministic, the other stochastic. Following a complex
Michel Riguidel
doaj   +1 more source

Ideal zero-divisor complex

open access: yesJournal of Commutative Algebra, 2017
Using discrete Morse theory for simplicial complexes we determine the homotopy type of ideal zero-divisor complex for finite rings and for rings with infinitely many maximal ideals.
Milošević, Nela, Petrović, Zoran Z.
openaire   +2 more sources

Singularities of the Partition Function for the Ising Model Coupled to 2d Quantum Gravity [PDF]

open access: yes, 1997
We study the zeros in the complex plane of the partition function for the Ising model coupled to 2d quantum gravity for complex magnetic field and real temperature, and for complex temperature and real magnetic field, respectively.
Ambjorn, J.   +2 more
core   +5 more sources

Complex zeros of cylinder functions [PDF]

open access: yesMathematics of Computation, 1966
All complex zeros of the cylinder functions Y n ( z ) , H n ( 1 ) ( z )  for  n = 0
openaire   +2 more sources

Absence of Zeros and Asymptotic Error Estimates for Airy and Parabolic Cylinder Functions [PDF]

open access: yes, 2012
We derive WKB approximations for a class of Airy and parabolic cylinder functions in the complex plane, including quantitative error bounds. We prove that all zeros of the Airy function lie on a ray in the complex plane, and that the parabolic cylinder ...
Finster, Felix, Smoller, Joel
core   +3 more sources

Four-manifolds with Shadow-complexity Zero [PDF]

open access: yesInternational Mathematics Research Notices, 2010
We prove that a closed 4-manifold has shadow-complexity zero if and only if it is a kind of 4-dimensional graph manifold, which decomposes into some particular blocks along embedded copies of S^2 x S^1, plus some complex projective spaces. We deduce a classification of all 4-manifolds with finite fundamental group and shadow-complexity zero.
openaire   +3 more sources

Clustering Complex Zeros of Triangular Systems of Polynomials [PDF]

open access: yesMathematics in Computer Science, 2020
Research report V6: description of the main algorithm ...
Imbach, Rémi, Pouget, Marc, Yap, Chee
openaire   +4 more sources

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