Search Results - "Polynomial operators"

Sheffer-Type General- λ -Matrix Polynomials and Their Structural Properties.

Authors: Yasmin, Ghazala Sharma, Aditi Oros, Georgia Irina et al.

Source: Symmetry (20738994). May2026, Vol. 18 Issue 5, p760. 21p.

Extending Polynomially Normal Operators to (P , Q)-Normal Operators in Semi-Hilbertian Spaces.

Authors: Ahmed Mahmoud, Sid Ahmed Ould Alotaibi, Nura Beinane, Sid Ahmed Ould et al.

Source: Mathematics (2227-7390). Mar2026, Vol. 14 Issue 5, p834. 19p.

Polinomial dəstələrdə baş operatorun spektrinin ixtiyari yerləşməsi.

Alternate Title: Arbitrary Placement of the Spectrum of the Leading Operator in Polynomial Operator Pencils.

Authors: Salmanova, Günay¹ gunay-salmanova@mail.ru

Source: Scientific Research / Elmi Tədqiqat. 2026, Vol. 6 Issue 3, p107-115. 9p.

Characterization and stability of essential pseudospectra by measure of polynomially inessential operators.

Authors: Elgabeur, Bilel¹ bilel.ELGABEUR@univ-amu.fr

Source: Studia Universitatis Babeș-Bolyai, Mathematica. Dec2025, Vol. 70 Issue 4, p685-708. 24p.

A generalization of Szász operators including Dunkl–Appell polynomials of class A⁽²⁾.

Authors: Çelik, Fatih Rıza İçöz, Gürhan

Source: Integral Transforms & Special Functions. Nov2025, Vol. 36 Issue 11, p961-976. 16p.

OPERATOR PRESERVING INEQUALITIES BETWEEN POLYNOMIALS.

Authors: Qasim, Idrees Mir, Abdullah

Source: Applicable Analysis & Discrete Mathematics. Oct2025, Vol. 19 Issue 2, p476-487. 12p.

On some semiclassical orthogonal polynomials on lattices.

Authors: MBOUNA, DIEUDONNE SUZUKI, ALEXANDRE

Source: Constructive Mathematical Analysis. Sep2025, Vol. 8 Issue 3, p146-155. 10p.

FAULHABER-TYPE FORMULAS FOR THE SUMS OF POWERS OF ARITHMETIC SEQUENCES.

Authors: SCHREFFLER, MORGAN YOLCU, TÜRKAY

Source: International Journal of Maps in Mathematics. Sep2025, Vol. 8 Issue 2, p769-790. 22p.

An inverse problem in Pólya-Schur theory. I. Non-degenerate and degenerate operators.

Authors: Alexandersson, Per Brändén, Petter Shapiro, Boris

Source: Revista Mathemática Iberoamericana. 2025, Vol. 41 Issue 5, p1863-1896. 34p.

Nonvanishing of second coefficients of Hecke polynomials on the newspace.

Authors: Cason, William Jim, Akash Medlock, Charlie et al.

Source: International Journal of Number Theory. Aug2025, Vol. 21 Issue 7, p1479-1512. 34p.

Recursive Parameter Estimation of Fractional Order Hammerstein Output Error Autoregressive Model.

Authors: Li, Yanan Li, Junhong Li, Fuchao et al.

Source: Circuits, Systems & Signal Processing. Jul2025, Vol. 44 Issue 7, p4828-4846. 19p.

Subjects: Polynomial operators, Parameter estimation, Separation (Technology), Algorithms

UNIQUENESS FUNCTIONS CONCERNING DIFFERENCE OPERATOR SHARING A POLYNOMIAL WITH FINITE WEIGHT.

Authors: WAGHAMORE, HARINA P. B. N., NAVEENKUMAR

Source: Journal of Classical Analysis. Jul2025, Vol. 26 Issue 1, p131-148. 18p.

Proposal for the Application of Fractional Operators in Polynomial Regression Models to Enhance the Determination Coefficient R 2 on Unseen Data.

Authors: Torres-Hernandez, Anthony Ramirez-Melendez, Rafael Brambila-Paz, Fernando

Source: Fractal & Fractional. Jun2025, Vol. 9 Issue 6, p393. 31p.

Uniform periodic counterexamples to Carleson's convergence problem with polynomial symbols.

Authors: Eceizabarrena, Daniel Yu, Xueying

Source: Bulletin of the London Mathematical Society. Jul2026, Vol. 58 Issue 7, p1-19. 19p.

General christoffel perturbations for multiple orthogonal polynomials of the mixed type on the step-line.

Authors: Mañas, Manuel Rojas, Miguel

Source: Numerical Algorithms. Jul2026, Vol. 102 Issue 3, p1829-1868. 40p.

Unified framework for Fiedler-like strong linearizations of polynomial and rational matrices.

Authors: Das, Ranjan Kumar Pillai, Harish K.

Source: Linear & Multilinear Algebra. Jun2026, p1-42. 42p.

On rough oscillatory singular integral operators.

Authors: Al Salman, Ahmad Grafakos, Loukas

Source: Forum Mathematicum. May2026, Vol. 38 Issue 3, p955-975. 21p.

A numerical method using Legendre polynomials for solving two-point interface problems.

Authors: Wu, Min Zhou, Jiali Guan, Chaoyue et al.

Source: AIMS Mathematics. 2025, Vol. 10 Issue 4, p1-15. 15p.

CIP-stabilized virtual elements for diffusion-convection-reaction problems.

Authors: Veiga, L Beirão da Lovadina, C Trezzi, M

Source: IMA Journal of Numerical Analysis. Mar2025, Vol. 45 Issue 2, p934-970. 37p.

Operators applied to polynomial structures on the semi-tangent bundle.

Authors: Yildirim, Furkan Akbulut, Kursat Kir, Mustafa

Source: International Journal of Geometric Methods in Modern Physics. Mar2025, Vol. 22 Issue 3, p1-20. 20p.