Criterion for Class Number of the Family Q254m2+m to be Greater Than or Equal to Three
Journal of Mathematics, Volume 2025, Issue 1, 2025.In this paper, we present an explicit lower bound for the class number of real quadratic field k=QD, where D = 25m2 + 4m is a square‐free integer and m ≡ 4 (mod 5) is an odd positive integer.
Ahmad Issa, Huadong Su
wiley +1 more source
A rational‐Chebyshev projection method for nonlinear eigenvalue problems
Numerical Linear Algebra with Applications, Volume 31, Issue 6, December 2024.Abstract This article describes a projection method based on a combination of rational and polynomial approximations for efficiently solving large nonlinear eigenvalue problems. In a first stage the nonlinear matrix function T(λ)$$ T\left(\lambda \right) $$ under consideration is approximated by a matrix polynomial in λ$$ \lambda $$.
Ziyuan Tang, Yousef Saad
wiley +1 more source
On the efficient evaluation of the azimuthal Fourier components of the Green's function for Helmholtz's equation in cylindrical coordinates. [PDF]
J Comput Phys, 2022 Garritano J +3 more
europepmc +1 more source
On the Mordell-Weil lattice of y 2 = x 3 + b x + t 3 n + 1 in characteristic 3. [PDF]
Res Number Theory, 2022 Leterrier G.
europepmc +1 more source
Simultaneous Momentum and Position Measurement and the Instrumental Weyl-Heisenberg Group. [PDF]
Entropy (Basel), 2023 Jackson CS, Caves CM.
europepmc +1 more source
Perspectives on mathematics competitions and their relationship with mathematics education. [PDF]
ZDM, 2022 de Losada MF, Taylor PJ.
europepmc +1 more source
AutoMH: Automatically Create Evolutionary Metaheuristic Algorithms Using Reinforcement Learning. [PDF]
Entropy (Basel), 2022 Almonacid B.
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The Classification of Branched Willmore Spheres in the $3$-Sphere and the $4$-Sphere
, 2019 We extend the classification of Robert Bryant of Willmore spheres in $S^3$ to variational branched Willmore spheres $S^3$ and show that they are inverse stereographic projections of complete minimal surfaces with finite total curvature in $\mathbb{R}^3 ...
Michelat, Alexis, Rivière, Tristan
core
From Quantum Curves to Topological String Partition Functions. [PDF]
Commun Math Phys, 2023 Coman I, Pomoni E, Teschner J.
europepmc +1 more source
Optimal Upper Bound for the Correlation Energy of a Fermi Gas in the Mean-Field Regime. [PDF]
Commun Math Phys, 2020 Benedikter N +4 more
europepmc +1 more source