Results 171 to 180 of about 48,454 (295)

Generalized φ$$ \varphi $$‐Pullback Attractors in Time‐Dependent Spaces: Application to a Nonautonomous Wave Equation With Time‐Dependent Propagation Velocity

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT We present sufficient conditions to obtain a generalized (φ,D)$$ \left(\varphi, \mathfrak{D}\right) $$‐pullback attractor for evolution processes on time‐dependent phase spaces, where φ$$ \varphi $$ is a given decay function and D$$ \mathfrak{D} $$ is a given universe.
Matheus Cheque Bortolan, Carlos Pecorari Neto, Heraclio López Lázaro, Paulo N. Seminario Huertas   +3 more
wiley   +1 more source

Gaussian Estimates for the Heat Kernel of the Weighted Laplacian and Fractal Measures [PDF]

, 1992
Alberto G. Setti
openalex   +1 more source

Existence of Weak Solutions for a Degenerate Goursat‐Type Linear Problem

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT For a generalization of the Gellerstedt operator with mixed‐type Dirichlet boundary conditions to a suitable Tricomi domain, we prove the existence and uniqueness of weak solutions of the linear problem and for a generalization of this problem.
Olimpio Hiroshi Miyagaki, Carlos Alberto Reyes Peña, Rodrigo da Silva Rodrigues   +2 more
wiley   +1 more source

Khovanov Laplacian and Khovanov Dirac for knots and links. [PDF]

J Phys Complex
Jones B, Wei GW.
europepmc   +1 more source

Optimal Designs for Discrete Choice Models Via Graph Laplacians. [PDF]

J Stat Theory Pract
Röttger F, Kahle T, Schwabe R.
europepmc   +1 more source

Cheeger constant and first nonzero eigenvalue of the Laplacian of a graph of small dimension [PDF]

, 1993
Jacques E. Boillat
openalex   +1 more source

Counting glomeruli in human kidney specimens using ex vivo MRI without contrast agents

Magnetic Resonance in Medicine, EarlyView.
Abstract Purpose The total number of glomeruli is an important indicator of kidney function and susceptibility to disease. Glomeruli, however, are difficult to image using MRI without contrast enhancement. For this reason, previous studies have used cationic ferritin as a contrast agent to detect glomeruli in ex vivo and in vivo perfused kidneys.
Nyoman D. Kurniawan, Aurel J. Amar, Luise A. Cullen‐McEwen, Alexander N. Combes, Raeesah Hayatudin, Andrew J. Kassianos, Jiaxin Du, Sarah E. Gazzard, Helen G. Healy, Wendy E. Hoy, John F. Bertram, David C. Reutens   +11 more
wiley   +1 more source

Partial differential equations in data science. [PDF]

Philos Trans A Math Phys Eng Sci
Bertozzi AL, Drenska N, Latz J, Thorpe M.   +3 more
europepmc   +1 more source

The Gaussian hare and the Laplacian tortoise: computability of squared-error versus absolute-error estimators [PDF]

, 1997
Stephen Portnoy, Roger Koenker
openalex   +1 more source

Image‐Based Flaw Identification Using Convolutional Neural Network

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Flaw detection in structures is crucial for ensuring structural integrity and safety across various engineering applications. Traditional nondestructive evaluation (NDE) techniques often face challenges in accurately identifying and characterizing flaws, particularly when dealing with complex geometries and strain fields.
Pugazhenthi Thananjayan, Sundararajan Natarajan, Palaniappan Ramu   +2 more
wiley   +1 more source