Results 31 to 40 of about 237,114 (316)

Supersymmetry and the Riemann zeros on the critical line

open access: yesPhysics Letters B, 2019
We propose a new way of studying the Riemann zeros on the critical line using ideas from supersymmetry. Namely, we construct a supersymmetric quantum mechanical model whose energy eigenvalues correspond to the Riemann zeta function in the strip ...
Ashok Das, Pushpa Kalauni
doaj   +1 more source

Schur-Type Inequalities for Complex Polynomials with no Zeros in the Unit Disk

open access: yesJournal of Inequalities and Applications, 2007
Starting out from a question posed by T. Erdélyi and J. Szabados, we consider Schur-type inequalities for the classes of complex algebraic polynomials having no zeros within the unit disk D.
Szilárd Gy. Révész
doaj   +2 more sources

Finding Zeros of Analytic Functions and Local Eigenvalue Analysis Using Contour Integral Method in Examples

open access: yesAdvances in Electrical and Electronic Engineering, 2017
A numerical method for computing zeros of analytic complex functions is presented. It relies on Cauchy's residue theorem and the method of Newton's identities, which translates the problem to finding zeros of a polynomial.
Erika Strakova   +2 more
doaj   +1 more source

Lee-Yang theory of the Curie-Weiss model and its rare fluctuations

open access: yesPhysical Review Research, 2020
Phase transitions are typically accompanied by nonanalytic behaviors of the free energy, which can be explained by considering the zeros of the partition function in the complex plane of the control parameter and their approach to the critical value on ...
Aydin Deger, Christian Flindt
doaj   +1 more source

Estimates for the polar derivative of a constrained polynomial on a disk

open access: yesCubo, 2022
This work is a part of a recent wave of studies on inequalities which relate the uniform-norm of a univariate complex coefficient polynomial to its derivative on the unit disk in the plane.
Gradimir V. Milovanović   +2 more
doaj   +1 more source

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

Complex zeros of the Jonquière or polylogarithm function [PDF]

open access: yesMathematics of Computation, 1975
Complex zero trajectories of the function\[F(x,s)=∑k=1∞xkksF(x,s) = \sum \limits _{k = 1}^\infty {\frac {{{x^k}}}{{{k^s}}}}\]are investigated for realxwith|x|>1|x| > 1in the complexs-plane. It becomes apparent that there exist several classes of such trajectories, depending on their behaviour for|x|→1|x| \to 1.
Fornberg, B., Kölbig, K. S.
openaire   +2 more sources

Partition function zeros of the Q-state Potts model for non-integer Q

open access: yes, 1999
The distribution of the zeros of the partition function in the complex temperature plane (Fisher zeros) of the two-dimensional Q-state Potts model is studied for non-integer Q.
Baxter   +18 more
core   +1 more source

Complex singularities around the QCD critical point at finite densities [PDF]

open access: yes, 2014
Partition function zeros provide alternative approach to study phase structure of finite density QCD. The structure of the Lee-Yang edge singularities associated with the zeros in the complex chemical potential plane has a strong influence on the real ...
Ejiri, Shinji   +2 more
core   +1 more source

Computing the zeros of cross-product combinations of the Bessel functions with complex order

open access: yesResults in Applied Mathematics
The zeros of cross-product combinations of the Bessel functions are often required as the eigenvalues in boundary-value problems with annular or tubular symmetry. Numerical methods to calculate the roots when the order is real have existed for many years,
Jeff Kershaw, Takayuki Obata
doaj   +1 more source

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