Results 31 to 40 of about 867 (169)

Non-local skew and non-local sticky Brownian motions

open access: yes, 2023
In this paper, we present a comprehensive study on the generalization of skew Brownian motion and two-sided sticky Brownian motion by considering non-local operators at the origin for the heat equations on the real line.
Fausto Colantoni
core   +1 more source

Approximation of skew Brownian motion by snapping‐out Brownian motions

open access: yesMathematische Nachrichten
AbstractWe elaborate on the theorem saying that as permeability coefficients of snapping‐out Brownian motions tend to infinity in such a way that their ratio remains constant, these processes converge to a skew Brownian motion. In particular, convergence of the related semigroups, cosine families, and projections is discussed.
Adam Bobrowski, Elżbieta Ratajczyk
openaire   +3 more sources

Skew brownian diffusions across koch interfaces [PDF]

open access: yes, 2017
We consider planar skew Brownian motion (BM) across pre-fractal Koch interfaces $\partial \Omega_n$ and moving on $\Omega^\epsilon_n = \Sigma_n \cup \Omega_n$.
CAPITANELLI, Raffaela, D'OVIDIO, MIRKO
core   +1 more source

Cenozoic Tectonics Ignite Mitochondrial Codon Innovations Propelling Canid Body Size Evolution and Transcontinental Radiations

open access: yesIntegrative Zoology, EarlyView.
We decode mitochondrial genomes across all extant canids, revealing lineage‐specific codon optimization driven by altitude, predation, and body size. A tripartite framework integrates geological events, metabolic constraints, and adaptive radiation to explain carnivore evolution.
Xiaoyang Wu   +8 more
wiley   +1 more source

Optimal deep learning activity recognition pipeline using animal bio‐logging data

open access: yesMethods in Ecology and Evolution, EarlyView.
Abstract Animal activity recognition using supervised machine learning on bio‐logging data has revolutionized behavioural studies on wildlife and livestock over the past decade. These studies' analytic pipelines differ substantially though, being based on various sensors, features, algorithms and hyperparameter values, which has caused suboptimal or ...
Jasper A. J. Eikelboom
wiley   +1 more source

The Role of Index Fund Ownership in the Era of Say‐on‐Pay

open access: yesFinancial Management, EarlyView.
ABSTRACT We examine whether and how index funds influence executive compensation in the post‐Say‐on‐Pay era. Using the annual reconstitution of the Russell indexes as a source of exogenous variation in index fund ownership, we document a causal effect of index ownership on CEO pay structure.
Kiseo Chung, Hwanki Brian Kim
wiley   +1 more source

Life Cycle Consumption and Portfolio Choice Under Real Interest Rate Risk

open access: yesFinancial Management, EarlyView.
ABSTRACT We set up a life cycle model with real interest rate risk to demonstrate that real interest rates have implications for optimal household consumption and investments. Lower interest rates lead to higher optimal stock investments and lower consumption.
Marcel Fischer, Natascha Jankowski
wiley   +1 more source

Acclimatization length and post‐release spatial cohesion in translocated Griffon Vultures (Gyps fulvus)

open access: yesIbis, EarlyView.
Translocations are often used in the conservation of large raptors, including Old World vultures. Different release methods are usually assessed by comparing the movement patterns and survival of released individuals. However, these approaches fail to capture the gregarious behaviour of many vulture species.
Jacopo Cerri   +11 more
wiley   +1 more source

On countably skewed Brownian motion with accumulation point

open access: yesElectronic Journal of Probability, 2015
في هذا العمل، نربط نظرية أشكال ديريتشليت المتماثلة وحساب التفاضل والتكامل العشوائي المباشر للحصول على وجود قوي وتفرد مساري للحركة البراونية التي تعكر صفوها سلسلة من المضاعفات الثابتة للأوقات المحلية في سلسلة من النقاط التي تحتوي على نقطة تراكم واحدة بالضبط في $\mathbb{R }$.
Youssef Ouknine   +2 more
openaire   +3 more sources

Skew-Product Decomposition of Planar Brownian Motion and Complementability [PDF]

open access: yes, 2014
International audienceLet $Z$ be a complex Brownian motion starting at 0 and $W$ the complex Brownian motion defined by $W_ t = \int_0^\cdot \frac{Z_s}{|Z_s|} dZ_s$.
Emery, Michel   +5 more
core   +1 more source

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