Results 31 to 40 of about 250,760 (121)

A general approach to the linear stability of viscoelastic shear‐flows

ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Volume 106, Issue 2, February 2026.
Abstract The present work provides an in‐depth analysis of the linear stability theory of viscoelastic shear‐flows, based upon a constitutive equation of the fading memory type. The particular model considered herein was introduced by Kenneth Walters through the integration of classical rate‐type fluids in a convected frame (Walters 1962).
Johannes Conrad, Martin Oberlack
wiley   +1 more source

On the Structural Behavior of Multiplicative (Generalized)‐Derivations via d‐Algebra Structures

Journal of Mathematics, Volume 2026, Issue 1, 2026.
In the context of a d‐algebra structure (℧, ∗, 0), this paper aims to introduce the concept of a multiplicative (generalized)‐derivation G associated with a self‐map Ξ (not necessarily a derivation). Based on this concept, the operations ∧ and composition ° will be defined, and several interesting related properties will be investigated, such as ...
Hicham Saber, Zakia Z. Al-Amery, Radwan M. Al-Omary, Khaled Aldwoah, Ria Egami, Pramita Mishra   +5 more
wiley   +1 more source

Interval-Valued Intuitionistic Fuzzy n-Fold Implicative Filters in Hoop Algebra

Axioms
This paper introduces the concept of interval-valued intuitionistic fuzzy n-fold implicative filters in hoop algebras and explores their fundamental properties.
Amal S. Alali, Tahsin Oner, Ravi Kumar Bandaru, Rajesh Neelamegarajan, Ibrahim Senturk   +4 more
doaj   +1 more source

Fixed‐Point Hoop Algebras and Lattice‐Theoretic Properties of Derivation Classes

Journal of Mathematics, Volume 2026, Issue 1, 2026.
We introduce three classes of derivations on hoop algebras—pseudo implicative, implicative, and f‐implicative—and investigate their algebraic characteristics through detailed examples. We establish that, under natural conditions, the collection of pseudo implicative derivations forms a bounded distributive lattice.
Ali Madanshekaf, Mohammad Mahdi Motamedi Nezhad, Smritijit Sen   +2 more
wiley   +1 more source

Investigating the Effects of Functionalized Single Wall Carbon Nanotubes on the Cure Behavior of a Carbon/Epoxy Prepreg System by an Optimized Parameter Approach

Polymer Composites, Volume 46, Issue 15, Page 14001-14016, 20 October 2025.
Mathematical Modeling of the Effect of Carbon Nanotubes on the Cure Behavior of a Carbon/Epoxy Prepreg Syste. ABSTRACT Carbon/Epoxy composite materials are used in a wide range of applications due to their superior performance. However, their properties are strongly related to cross‐linking reactions occurring during the curing process, and a prior ...
Murat Öz, Yusuf Can Uz, Gamze Tanoglu, Metin Tanoglu, Murat Barisik   +4 more
wiley   +1 more source

Optimal Allocation of Observations in Stepped‐Wedge and Other Cluster Studies With Correlated Cluster‐Period Effects

Statistics in Medicine, Volume 44, Issue 13-14, June 2025.
ABSTRACT Stepped‐wedge studies usually entail regular sampling of clusters over time. Yet the precision of the treatment effect estimator can sometimes be improved if the regular sampling scheme is replaced by one with preferential allocation of observations to particular time‐epochs within each cluster. We present some exact results for optimizing the
Alan J. Girling, Samuel I. Watson
wiley   +1 more source

Two non‐circular compressible liquid inclusions in an infinite elastic matrix

ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Volume 105, Issue 2, February 2025.
Abstract We derive an analytical solution to the plane strain problem associated with two interacting identical non‐circular compressible liquid inclusions embedded in an infinite isotropic elastic matrix subjected to uniform remote in‐plane normal stresses.
Xu Wang, Peter Schiavone
wiley   +1 more source

Symmetric subgroups in modular group algebras [PDF]

, 2010
This preprint is translated from the original journal publication in Russian: A. Konovalov and A. Tsapok, Symmetric subgroups of the normalised unit group of the modular group algebra of a finite p-group, Nauk. Visn. Uzhgorod. Univ., Ser. Mat., 9 (2004),
Krivokhata, A. G., Konovalov, Alexander
core   +2 more sources

Landmarking for Left‐Truncated Competing Risk Data

Biometrical Journal, Volume 66, Issue 8, December 2024.
ABSTRACT Landmarking is an alternative to complex multistate models when the aim is to calculate dynamic predictions. We develop the concept of landmarking for the case of left truncation and competing risks from the application background of drug safety assessment in pregnancy.
Theresa Unseld, Tobias Bluhmki, Jan Beyersmann, Evelin Beck, Stephanie Padberg, Regina Stegherr   +5 more
wiley   +1 more source

Bipolar Fuzzy n-Fold Positive Implicative and Fantastic Filters in Hoop Algebras with Applications to Fuzzy Logic

Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica
In this paper, we introduce and study the notion of bipolar fuzzy n-fold positive implicative filters within the framework of hoop algebras, and examine their fundamental properties.
Bordbar Hashem, Oner Tahsin, Rajesh Neelamegarajan, Bandaru Ravikumar, Ates Firat   +4 more
doaj   +1 more source