Geometric brownian motion - Open Access .click

Results 201 to 210 of about 52,895 (269)

Cranial modularity drives phenotypic diversification and adaptive radiation of Antarctic icefishes. [PDF]

Proc Natl Acad Sci U S A
Neves MP, Chan H, M Santos EC, Evans KM.
europepmc +1 more source

Skew Premiums Around Earnings Announcements

Financial Review, Volume 61, Issue 2, Page 533-554, May 2026.
ABSTRACT We examine skew premiums in equity options around earnings announcements. We use the realized returns to delta‐neutral risk reversal option spreads as a proxy for the skew premiums. We find skew premiums are economically significant around earnings announcements and are not explained by changes in variance risk premiums.
Thaddeus Neururer, George Papadakis
wiley +1 more source

A stochastic mechanism drives fast substrate translocation in the AAA+ machine ClpB. [PDF]

Nat Commun
Casier R, Levy D, Riven I, Barak Y, Haran G. +4 more
europepmc +1 more source

A goodness-of-fit test for geometric Brownian motion

Computational Statistics & Data Analysis
Daniel Gaigall, Philipp Wübbolding
openaire +1 more source

Monitoring panels of sparse functional data

Journal of Time Series Analysis, Volume 47, Issue 3, Page 660-674, May 2026.
Panels of random functions are common in applications of functional data analysis. They often occur when sequences of functions are observed at a number of different locations. We propose a methodology to monitor for structural breaks in such panels and to identify the changing components with statistical certainty.
Tim Kutta, Agnieszka Jach, Piotr Kokoszka +2 more
wiley +1 more source

Phylogenetic constraints, conservatism, and convergence shape three‐dimensional variation in flower morphology of a tropical orchid radiation

The Plant Journal, Volume 126, Issue 3, May 2026.
SUMMARY Despite advances in phylogenetic comparative methods, challenges remain to distinguish between various macroevolutionary patterns of phenotypic variation (e.g., conservatism, convergence) and to infer their underlying proximate (genetic, developmental) or ultimate (selective versus neutral) causes.
Silvia Artuso +4 more
wiley +1 more source

Surface-Tethering Enhances Precision in Measuring Diffusion Within 3D Protein Condensates. [PDF]

J Mol Biol
Sumrall ER, Gao G, Stakenas S, Walter NG. +3 more
europepmc +1 more source

Strong well‐posedness for a stochastic fluid‐rigid body system via stochastic maximal regularity

Journal of the London Mathematical Society, Volume 113, Issue 5, May 2026.
Abstract We develop a rigorous analytical framework for a coupled stochastic fluid‐rigid body system in R3$\mathbb {R}^3$. The model describes the motion of a rigid ball immersed in an incompressible Newtonian fluid subjected to both additive noise in the fluid and body equations and transport‐type noise in the fluid equation. We establish local strong
Felix Brandt, Arnab Roy
wiley +1 more source

Navigating Gravity: Competing Effects Result in Opposing Taxis for Different Janus Swimmers. [PDF]

Small
Sheikh Shoaei A, Sommer JU, Simmchen J.
europepmc +1 more source

Self‐Affine Scaling of Earth's Islands

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Earth's relief is approximately self‐affine, meaning a zoom‐in on a small region looks statistically similar to a large region upon rescaling. Fractional Brownian surfaces give an idealized self‐affine model of Earth's relief with one parameter, the Hurst exponent H $H$, characterizing the roughness of the surface.
Matthew Oline +4 more
wiley +1 more source

mathematics