Search Results - "Existence theorems"

Construction of a Determinantal Formula and Some Characterizations of Minkowski Inverse.

Authors: Mudigoudar, Neelaganga U. Bhat, K. Arathi Hanif, Shahistha et al.

Source: Engineering Letters. Jun2026, Vol. 34 Issue 6, p2236-2241. 6p.

Subjects: Matrix inversion, Existence theorems, Mathematical formulas, Linear algebra, Matrices (Mathematics)

Initial data on big bang singularities.

Authors: Ringström, Hans¹ hansr@kth.se

Source: Journal of the European Mathematical Society (EMS Publishing). 2026, Vol. 28 Issue 7, p3049-3130. 82p.

Study of some Anisotropic Parabolic Problems with Degenerate Coercivity.

Authors: EL JANATHI, AYMANE HJIAJ, HASSANE

Source: Annals of the University of Craiova. Mathematics & Computer Science Series. Jun2026, Vol. 53 Issue 1, p7-31. 25p.

Existence and uniqueness results for some Caputo--Hadamard fractional differential equations via measures of noncompactness.

Authors: KAZEMI, Manochehr SAMEI, Mohammad Esmael SAHEBI, Hamid Reza et al.

Source: Turkish Journal of Mathematics. 2026, Vol. 50 Issue 3, p407-422. 16p.

Existence results for a class of hemivariational-like inequality problems.

Authors: Mahalik, Kartikeswar Nahak, Chandal Agarwal, Ravi P.

Source: Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica. 2026, Vol. 34 Issue 2, p139-162. 24p.

Multiple solutions for discontinuous fractional p -Laplacian problems.

Authors: Yuan, Ziqing^1,2 (AUTHOR) junjyuan@sina.com

Source: AIMS Mathematics. 2026, Vol. 11 Issue 5, p1-30. 30p.

Optimal pair of fixed points: existence, uniqueness and approximation.

Authors: Safari-Hafshejani, A. Gabeleh, M.

Source: Fixed Point Theory & Algorithms for Sciences & Engineering. 2/10/2026, Vol. 2026 Issue 1, p1-20. 20p.

Subjects: Fixed point theory, Existence theorems, Metric spaces, Banach spaces, A posteriori error analysis

AFFINE-PERIODIC SOLUTIONS OF DISCRETE DYNAMICAL SYSTEMS: MASSERA'S CRITERION, AFFINE-PERIODIC FLOQUET DECOMPOSITION AND EXISTENCE RESULTS.

Authors: Kostić, Marko Koyuncuoğlu, Halis Can Raffoul, Youssef N.

Source: Applicable Analysis & Discrete Mathematics. Apr2026, Vol. 20 Issue 1, p121-145. 25p.

Existence of solutions for a fractional evolution pantograph problem with a non-dense domain in a Banach space.

Authors: Khadija, Oufkir M'hamed, Elomari Hamid, Sadiki

Source: Nonlinear Studies. 2026, Vol. 33 Issue 2, p635-651. 17p.

On some existence theorems for quasilinear elliptic equations.

Authors: N., Amanova¹ amanovan93@gmail.com

Source: Uzbek Mathematical Journal. 2026, Vol. 70 Issue 2, p24-32. 9p.

Ambrosetti–Prodi periodic problem of Minkowski-curvature equations with an indefinite repulsive singularity.

Authors: Kong, Ci Cheng, Zhibo

Source: Communications in Contemporary Mathematics. Apr2026, Vol. 28 Issue 3, p1-18. 18p.

Solutions of variable order mobile–immobile advection–dispersion models, their existence and uniqueness.

Authors: Verma, Pratibha Tiwari, Surabhi

Source: Journal of Nonlinear, Complex & Data Science. Apr2026, Vol. 27 Issue 2, p65-90. 26p.

THE CHARACTERISTIC PROBLEM FOR ONE CLASS OF HIGH-ORDER NONLINEAR EQUATION OF COMPOSITE TYPE.

Authors: KHARIBEGASHVILI, SERGO BIBILASHVILI, TEONA

Source: Transactions of A. Razmadze Mathematical Institute. Apr2026, Vol. 180 Issue 1, p157-160. 4p.

Nonlocal Navier–Stokes Equations: Existence and Asymptotic Behavior.

Authors: Shen, Jiayi Xiang, Mingqi

Source: Asymptotic Analysis. Mar2026, Vol. 146 Issue 3, p161-180. 20p.

Existence of positive periodic solutions for a first-order semilinear functional differential equation with an iterative source term.

Authors: BOUAKKAZ, Ahlème KHEMIS, Rabah

Source: Turkish Journal of Mathematics. 2026, Vol. 50 Issue 2, p192-207. 16p.

CORRIGENDUM TO: ANALYSIS AND SOLUTION OF COMPLEX ORDER DIFFERENTIAL EQUATIONS USING SINGULAR KERNEL, PUBLISHED IN DIFFERENTIAL EQUATIONS AND APPLICATIONS, VOL. 16 NO. 2 (2024), 171–182, BY AMAR DEEP.

Authors: VERMA, PRATIBHA KUMAR, RAKESH SINGH, BHUPANDER et al.

Source: Differential Equations & Applications. Feb2026, Vol. 18 Issue 1, p21-25. 5p.

Filippov-type existence theorems for q -fractional differential inclusions with nonlinear q -integral conditions in Banach spaces.

Authors: Hassan, Taher S. Rezaiguia, Ali Iambor, Loredana Florentina et al.

Source: AIMS Mathematics. 2026, Vol. 11 Issue 2, p1-18. 18p.

Existence and nonexistence results for a class of pseudo-parabolic equations with combined logarithmic nonlinearities.

Authors: Zhang, Wei Zhang, Jialing

Source: Advanced Nonlinear Studies. Feb2026, Vol. 26 Issue 1, p22-60. 39p.

Existence of positive weak solutions for fractional Laplacian elliptic systems.

Authors: Vanterler da Costa Sousa, José Tavares, Leandro S. Chung, Nguyen Thanh

Source: Georgian Mathematical Journal. Feb2026, Vol. 33 Issue 1, p155-164. 10p.

Exploring Nonoscillatory Solutions in Second-Order Neutral Differential Equations with Distributed Deviating Arguments.

Authors: CINA, Bengu SENEL, M. Tamer CANDAN, Tuncay

Source: Gazi University Journal of Science. 2026, Vol. 39 Issue 1, p442-450. 9p.

Subjects: Existence theorems, Differential equations, Fixed point theory, Nonlinear differential equations, Delay differential equations, Biomathematics