Results 151 to 160 of about 6,695 (326)

Interplay Between Sex and Cytosine‐Adenine‐Guanine‐Age Product Score in Huntington's Disease: Clinical and Neuroimaging Perspectives

open access: yesMovement Disorders, EarlyView.
Abstract Background Huntington's disease (HD) is a progressive neurodegenerative disorder caused by a cytosine‐adenine‐guanine (CAG) repeat expansion in the huntingtin gene. The disease exhibits sex‐related differences in symptomatology and disease progression, but the effect on brain structural biomarkers and the interaction between sex and CAG‐age ...
Jingwen Yao   +10 more
wiley   +1 more source

A Geometric Interpretation for the Algebraic Properties of Second‐Order Ordinary Differential Equations

open access: yesMathematical Methods in the Applied Sciences, Volume 48, Issue 6, Page 6912-6917, April 2025.
ABSTRACT Nowadays, a substantial portion of investigations concerning the symmetry analysis of differential equations predominantly adhere to a framework comprising the following key procedures: (i) the derivation of symmetries, (ii) the determination of an optimal system, (iii) the utilization of these symmetries to construct invariants or ...
A. Paliathanasis   +2 more
wiley   +1 more source

A Variational Formulation of European Option Prices in the 1‐Hypergeometric Stochastic Volatility Model

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT The paper proposes a variational analysis of the 1‐hypergeometric stochastic volatility model for pricing European options. The methodology involves the derivation of estimates of the weak solution in a weighted Sobolev space. The weight is closely related to the stochastic volatility dynamic of the model.
José Da Fonseca, Wenjun Zhang
wiley   +1 more source

Cazenave‐Dickstein‐Weissler‐Type Extension of Fujita'S Problem on Heisenberg Groups

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT This paper investigates the Fujita critical exponent for a heat equation with nonlinear memory posed on the Heisenberg groups. A sharp threshold is identified such that, for exponent values less than or equal to this critical value, no global solution exists, regardless of the choice of nonnegative initial data. Conversely, for exponent values
Mokhtar Kirane   +3 more
wiley   +1 more source

Generalizations of the Euler-Maclaurin formula

open access: yesJournal of Mathematical Analysis and Applications, 1979
Leroy Derr, D. Sarafyan, Curtis Outlaw
openaire   +3 more sources

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