Results 41 to 50 of about 26,590 (142)

Invariant Characterization of Scalar Second‐Order ODEs That Admit Three Point Symmetry Lie Algebra via Cartan's Equivalence Method

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT Cartan's equivalence method is applied to explicitly construct three‐dimensional invariant coframes for three branches, which are used to characterize scalar second‐order ODEs with a three‐point symmetry Lie algebra. Additionally, we present a method for constructing the point transformation based on the derived invariant coframes.
Ahmad Y. Al‐Dweik, Marwan Aloqeili, Omar A. Abuloha, Batoul M. Raddad, Sondos R. Khalil, F. M. Mahomed   +5 more
wiley   +1 more source

Advanced Fractional Reaction-Diffusion Modeling for Spatio-Temporal Dynamics of Poliovirus Transmission with Disability Outcomes and Vaccination Impacts

European Journal of Pure and Applied Mathematics
This work presents a novel fractional reaction-diffusion model to analyze the spatio-temporal dynamics of poliovirus transmission. Polio, a highly contagious viral infection that primarily affects children under five and can lead to permanent disability,
Kamel Guedri, Rahat Zarin, Basim M. Makhdoum, Hatoon A. Niyazi   +3 more
semanticscholar   +1 more source

BRST analysis of general mechanical systems

, 2013
We study the groups of local BRST cohomology associated to the general systems of ordinary differential equations, not necessarily Lagrangian or Hamiltonian.
A.A. Sharapov, Agrachev, Alexandrov, Barnich, Barnich, Barnich, Barnich, Barnich, Barnich, Batalin, Cattaneo, D.S. Kaparulin, Fuchs, Grigoriev, Henneaux, Henneaux, Kaparulin, Kaparulin, Kazinski, Kosmann-Schwarzbach, Lada, Lyakhovich, Lyakhovich, Lyakhovich, Lyakhovich, Maclane, Retakh, S.L. Lyakhovich, Seiler, Voronov   +29 more
core   +1 more source

Behavioral Cobweb Dynamics With Anticipatory Inventory and Ulam Stability: An Integro‐Differential Approach

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT This paper proposes a novel extension of the classical cobweb price model by incorporating behavioral inventory responses through an anticipatory mini‐storage mechanism. In many real‐world commodity markets, persistent price oscillations occur even when classical stability conditions are theoretically satisfied, an inconsistency traditional ...
M. Anokye, A. L. Sackitey, Agnes Adom‐Konadu, Samuel E. Assabil, Luca Guerrini, M. F. Ofori, Massimiliano Ferrara   +6 more
wiley   +1 more source

Numerical Solutions of ODEs using Volterra Series [PDF]

, 2006
We propose a numerical approach for solving systems of nonautonomous ordinary di®erential equations under suitable assumptions. This approach is based on expansion of the solutions by Volterra series and allows to estimate the accuracy of the ...
Kirov, Nikolay, Krastanov, Michail
core  

New results on group classification of nonlinear diffusion-convection equations

, 2003
Using a new method and additional (conditional and partial) equivalence transformations, we performed group classification in a class of variable coefficient $(1+1)$-dimensional nonlinear diffusion-convection equations of the general form $f(x)u_t=(D(u ...
Abramenko A A, Akhatov I Sh, Akhatov I Sh, Akhatov I Sh, Amerov T K, Ames W F, Ames W F, Barenblatt G I, Barenblatt G I, Basarab-Horwath P, Boyko V M, Dorodnitsyn V A, El-labany S K, Gagnon L, Kaptsov O V, King J R, Kingston J G, Kingston J G, Lahno V I, Lahno V I, Lie S, Lie S, Malfliet W, Mubarakzyanov G M, Nataliya M Ivanova, Nikitin A G, Ovsiannikov L V, Ovsiannikov L V, Patera J, Polyanin A D, Popovych R O, Popovych R O, Popovych R O, Roman O Popovych, Sophocleous C, Sophocleous C, Vasilenko O F, Zhdanov R Z   +37 more
core   +4 more sources

Mathematical Modeling of Neuroinflammation in Neurodegenerative Diseases

CPT: Pharmacometrics &Systems Pharmacology, EarlyView.
ABSTRACT Age‐related neurodegenerative diseases such as amyotrophic lateral sclerosis (ALS), Alzheimer's disease (AD) and Parkinson's disease (PD) are an increasing public health concern. Whereas the pathology of these diseases is complex, chronic central inflammation, or neuroinflammation, is commonly observed across many neurodegenerative diseases ...
Alex Foster‐Powell, Amin Rostami‐Hodjegan, Guy Meno‐Tetang, Donald E. Mager, Kayode Ogungbenro   +4 more
wiley   +1 more source

Fourth order Superintegrable systems separating in Cartesian coordinates I. Exotic quantum potentials

, 2017
A study is presented of two-dimensional superintegrable systems separating in Cartesian coordinates and allowing an integral of motion that is a fourth order polynomial in the momenta.
Marquette, Ian, Sajedi, Masoumeh, Winternitz, Pavel   +2 more
core   +1 more source

The Human Cardiac “Age‐OME”: Age‐Specific Changes in Myocardial Molecular Expression

Aging Cell, EarlyView.
A multi‐omics analysis was performed to uncover the molecular landscape of human cardiac ageing. We report several insights for the first time: a decrease in proteins composing the structural machinery of the heart; a likely compensatory increase in energetic flux and redox reductive capacity; and an increase in lysosomal activity.
Cassandra Malecki, Giovanni Guglielmi, Benjamin Hunter, Dylan Harney, Yen Chin Koay, Anthony. S. Don, Oscar Han, Jasmine Khor, Lisa Nguyen, Michael Pan, Peter Gawthrop, Nathan Isles, Joshua Chung, Robert. D. Hume, Matthew Taper, XiaoSuo Wang, Mark Larance, Fabian Spill, Vijay Rajagopal, John F. O’Sullivan, Sean Lal   +20 more
wiley   +1 more source

Measure‐valued processes for energy markets

Mathematical Finance, Volume 35, Issue 2, Page 520-566, April 2025.
Abstract We introduce a framework that allows to employ (non‐negative) measure‐valued processes for energy market modeling, in particular for electricity and gas futures. Interpreting the process' spatial structure as time to maturity, we show how the Heath–Jarrow–Morton approach can be translated to this framework, thus guaranteeing arbitrage free ...
Christa Cuchiero, Luca Di Persio, Francesco Guida, Sara Svaluto‐Ferro   +3 more
wiley   +1 more source