Publications related to Logarithm of a matrix

On the finite section method for computing exponentials of doubly-infinite skew-Hermitian matrices

Computing the exponential of large-scale skew-Hermitian matrices or parts thereof is frequently required in applications. In this work, we consider the task of extracting finite diagonal blocks from a doubly-infinite skew-Hermitian matrix. These matrices u ...

Elsevier Science Inc2014

Impact of tunneling anisotropy on the conductivity of nanorod dispersions

Claudio Grimaldi, Biagio Nigro

While the tunneling conductance between two spherical-like conducting particles depends on the relative interparticle distance, the wave function overlap between states of two rodlike particles, and so the tunneling conductance, depends also on the relativ ...

American Physical Society2014

Aggressively Truncated Taylor Series Method For Accurate Computation Of Exponentials Of Essentially Nonnegative Matrices

Meiyue Shao

Small relative perturbations to the entries of an essentially nonnegative matrix introduce small relative errors to entries of its exponential. It is thus desirable to compute the exponential with high componentwise relative accuracy. Taylor series approxi ...

Siam Publications2014

Intersubject local SAR variation for 7T prostate MR imaging with an eight-channel single-side adapted dipole antenna array

Özlem Ipek

PURPOSE: Surface transmit arrays used in ultra-high field body MRI require local specific absorption rate (SAR) assessment. As local SAR cannot be measured directly, local SAR is determined by simulations using dielectric patient models. In this study, the ...

2014

Automatically calibrating the viewing direction of optic-flow sensors

Dario Floreano, Jean-Christophe Zufferey, Adrien Briod

Because of their low weight, cost and energy consumption, optic-flow sensors attract growing interest in robotics for tasks such as self-motion estimation or depth measurement. Most applications require a large number of these sensors, which involves a fai ...

IEEE2012

Combinatorial Selection and Least Absolute Shrinkage via the CLASH Algorithm

Volkan Cevher, Anastasios Kyrillidis

The least absolute shrinkage and selection operator (LASSO) for linear regression exploits the geometric interplay of the

\ell_2

-data error objective and the

\ell_1

-norm constraint to arbitrarily select sparse models. Guiding this uninformed selection ...

IEEE2012

Pre-selection of optical transitions in rare-earth ions in crystals perspective for quantum information processing

A systematic analysis of decoherence rates due to electron-phonon interactions for optical transitions of rare-earth dopant ions in crystals is presented in the frame of the point charge model. For this model, the large value of any one of the matrix eleme ...

Taylor & Francis2012

Engineering integrin signaling for promoting embryonic stem cell self-renewal in a precisely defined niche

Stephane Kontos, Jeffrey Alan Hubbell, Seung Tae Lee, Yun Suk Jo, Jong Eun Ihm, Mayumi Mochizuki Martino, Jungim Yun

We present development and use of a 3D synthetic extracellular matrix (ECM) analog with integrin- specific adhesion ligands to characterize the microenvironmental influences in embryonic stem cell (ESC) self-renewal. Transcriptional analysis of 24 integrin ...

Elsevier2010

Polar Codes: Characterization of Exponent, Bounds, and Constructions

Rüdiger Urbanke, Satish Babu Korada, Eren Sasoglu

Polarization codes were recently introduced by Ar\i kan. They are explicit code constructions which achieve the capacity of arbitrary symmetric binary-input discrete memoryless channels (and even extensions thereof) under a low complexity successive decodi ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2009

Dequantizing Compressed Sensing: When Oversampling and Non-Gaussian Constraints Combine

Laurent Jacques

The theory of Compressed Sensing (CS) is based on reconstructing sparse signals from random linear measurements. As measurement of continuous signals by digital devices always involves some form of quantization, in practice devices based on CS encoding mus ...

2009

Logarithm of a matrix

Graph Chatbot

Chat with Graph Search

On the finite section method for computing exponentials of doubly-infinite skew-Hermitian matrices

Impact of tunneling anisotropy on the conductivity of nanorod dispersions

Aggressively Truncated Taylor Series Method For Accurate Computation Of Exponentials Of Essentially Nonnegative Matrices

Intersubject local SAR variation for 7T prostate MR imaging with an eight-channel single-side adapted dipole antenna array

Automatically calibrating the viewing direction of optic-flow sensors

Combinatorial Selection and Least Absolute Shrinkage via the CLASH Algorithm

Pre-selection of optical transitions in rare-earth ions in crystals perspective for quantum information processing

Engineering integrin signaling for promoting embryonic stem cell self-renewal in a precisely defined niche

Polar Codes: Characterization of Exponent, Bounds, and Constructions

Dequantizing Compressed Sensing: When Oversampling and Non-Gaussian Constraints Combine

Combinatorial Selection and Least Absolute Shrinkage via the CLASH Algorithm

On the finite section method for computing exponentials of doubly-infinite skew-Hermitian matrices

Pre-selection of optical transitions in rare-earth ions in crystals perspective for quantum information processing

Aggressively Truncated Taylor Series Method For Accurate Computation Of Exponentials Of Essentially Nonnegative Matrices

Dequantizing Compressed Sensing: When Oversampling and Non-Gaussian Constraints Combine

Automatically calibrating the viewing direction of optic-flow sensors

Impact of tunneling anisotropy on the conductivity of nanorod dispersions

Intersubject local SAR variation for 7T prostate MR imaging with an eight-channel single-side adapted dipole antenna array

Engineering integrin signaling for promoting embryonic stem cell self-renewal in a precisely defined niche

Polar Codes: Characterization of Exponent, Bounds, and Constructions