Results 91 to 100 of about 923,849 (196)

The SIR Model in a Moving Population: Propagation of Infection and Herd Immunity

Communications on Pure and Applied Mathematics, Volume 79, Issue 11, Page 2375-2429, November 2026.
ABSTRACT In a collection of particles performing independent random walks on Zd$\mathbb {Z}^d$ we study the spread of an infection with SIR dynamics. Susceptible particles become infected when they meet an infected particle. Infected particles heal and are removed at rate ν$\nu$.
Duncan Dauvergne, Allan Sly
wiley   +1 more source

Abstract Algebra II

, 2012
This Saylor course is an extension of abstract algebra I and revisits structures like groups, rings and fields as well as mappings like homomorphisms and isomorphisms.
algebra, The Saylor Foundation
core  

Renormalisation of composite operators in lattice QCD: perturbative versus nonperturbative [PDF]

, 2010
The perturbative and nonperturbative renormalisation of quark-antiquark operators in lattice QCD with two flavours of clover fermions is investigated within the research programme of the QCDSF collaboration.
James Zanotti, Gockeler, M., Holger Perlt, Paul E.L. Rakow, Pleiter, D., Horsley, R., Schierholz, G., Arwed Schiller, Meinulf Goeckeler, Roger Horsley, Dirk Pleiter, Schafer, A., Stüben, H., Rakow, P., Hinnerk Stuben, Schiller, A., Nakamura, Y., Yoshifumi Nakamura, Andreas Schafer, Perlt, H., Zanotti, J., Gerrit Schierholz   +21 more
core   +1 more source

A Common External Framework for Kleene and McCarthy Algebras

Mathematical Logic Quarterly, Volume 72, Issue 4, November 2026.
ABSTRACT Algebras of disjoint alternatives (ADAs), introduced by Manes, are extensions of McCarthy algebras by a unary operator acting as an oracle for the halting problem, and provide a semantics for the equational theory of the if–then–else construct.
Gandolfo Vergottini, Antonio Ledda, Pierluigi Graziani   +2 more
wiley   +1 more source

A new risk analysis approach based on linguistic-valued lattice implication algebra

, 2009
In the framework of the linguistic truth-valued lattice implication algebra, we present a 10-element linguistic-valued lattice implication algebra with linguistic hedges and two antonyms basic words for fuzzy risk analysis.
Xu, Yang, Zou, Li, Ruan, Da, Pei, Zheng
core  

A Practical Guide to First‐Principles Calculations for Pseudocapacitive Materials: From Electrochemical Experiments to Atomistic Understanding

ChemElectroChem, Volume 13, Issue 20, 16 October 2026.
Electrochemical experiments reveal what happens, whereas first principles calculations explain why. Emerging computational electrochemistry is bridging these perspectives, enabling quantitative understanding of electrode/electrolyte interfaces and enabling the rational design of next‐generation energy storage materials.
Kenji Oqmhula, Ryo Maezono, Kenta Hongo
wiley   +1 more source

Determination of alpha-resolution for lattice-valued first-order logic based on lattice implication algebra

, 2007
As a continuation of our research work on resolution-based automated reasoning approaches for lattice-valued logic systems with truth-values in a lattice-valued logical algebraic structure s lattice implication algebra (LIA), in the present paper, we ...
Xu, Yang, Yang Xu, Ruan, Da, Xiaobing Li, Da Ruan, Jun Liu, Li, Xiaobing, Liu, Jun   +7 more
core   +1 more source

Polynomial Preconditioning for Indefinite Matrices

Numerical Linear Algebra with Applications, Volume 33, Issue 5, October 2026.
ABSTRACT Polynomial preconditioning is an important tool in solving large linear systems and eigenvalue problems. A polynomial from GMRES can be used to precondition restarted GMRES and restarted Arnoldi. Here we give methods for indefinite matrices that make polynomial preconditioning more generally applicable. The new techniques include balancing the
Hayden Henson, Ronald B. Morgan
wiley   +1 more source

Domain‐Knowledge‑Guided Rule Extraction for Governing Nepheline Amount in High‑Level Waste Glasses

International Journal of Applied Glass Science, Volume 17, Issue 4, October 2026.
ABSTRACT Nepheline crystallization during canister centerline cooling is one of the most constraining factors limiting waste loading in high‐level waste (HLW) borosilicate glasses. Existing predictive models treat nepheline formation as a binary outcome, yet durability degradation depends continuously on nepheline fraction.
Irmak Sargin
wiley   +1 more source

Navigating Supply Shocks: Sector Resilience and Production Prices Through Stochastic Input–Output Modeling

Mathematical Finance, Volume 36, Issue 4, Page 826-845, October 2026.
ABSTRACT This study develops a novel multivariate stochastic framework for assessing systemic risks, such as climate and nature‐related shocks, within production or financial networks. By embedding a linear stochastic fluid network, interpretable as a generalized vector Ornstein–Uhlenbeck process, into the production network of interdependent ...
Giovanni Amici, Gianluca Fusai, Anna Maria Gambaro, Daniele Marazzina   +3 more
wiley   +1 more source