Results 51 to 60 of about 79,851 (290)
Evaluation of Urinary Sphincter Function by Rapid Magnetic Resonance Diffusion Tensor Imaging [PDF]
International Neurourology Journal, 2020 Purpose This study aimed to assess the feasibility of a rapid diffusion tensor imaging (DTI) for evaluation of the female urinary sphincter function based on differentiation between rest and muscle contraction. Methods Magnetic resonance imaging (MRI) of
Florian A. Schmid +6 more
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Using Ensemble Learning to Improve Automatic Vectorization of Tensor Contraction Program
IEEE Access, 2018 Automatic vectorization is crucial for improving the performance of computationally intensive programs. Existing compilers use conservative optimization strategies for automatic vectorization, which, in many cases, lead to the loss of vectorization ...
Hui Liu, Rongcai Zhao, Kai Nie
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X-symbols for non-Abelian symmetries in tensor networks
Physical Review Research, 2020 The full exploitation of non-Abelian symmetries in tensor network states (TNSs) derived from a given lattice Hamiltonian is attractive in various aspects.
Andreas Weichselbaum
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Efficient variational contraction of two-dimensional tensor networks with a non-trivial unit cell [PDF]
Quantum, 2020 Tensor network states provide an efficient class of states that faithfully capture strongly correlated quantum models and systems in classical statistical mechanics.
A. Nietner +4 more
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Optimization problems in contracted tensor networks [PDF]
Computing and Visualization in Science, 2011 We discuss the calculus of variations in tensor representations with a special focus on tensor networks and apply it to functionals of practical interest. The survey provides all necessary ingredients for applying minimization methods in a general setting.
Reinhold Schneider +3 more
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Three-dimensional isometric tensor networks
Physical Review Research, 2021 Tensor network states are expected to be good representations of a large class of interesting quantum many-body wave functions. In higher dimensions, their utility is however severely limited by the difficulty of contracting the tensor network, an ...
Maurits S. J. Tepaske, David J. Luitz
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Contractive homomorphisms and tensor product norms [PDF]
Integral Equations and Operator Theory, 1995 For any complex domain Ω, one can ask if all contractive algebra homomorphisms ofA(Ω) (into the algebra of Hilbert space operators) are completely contractive or not. By Ando's Theorem, this has an affirmative answer for Ω =D2, the bi-disc-while the answer is unknown for Ω =D2, the unit ball of ℂ2 with l1-norm.
Gadadhar Misra, Bhaskar Bagchi
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Early evolution of fully convective stars in scalar–tensor gravity
European Physical Journal C: Particles and Fields, 2023 In this work, the early evolution of low-mass fully convective stars is studied in the context of DHOST (degenerate higher order scalar-tensor) theories of gravity.
Débora Aguiar Gomes, Aneta Wojnar
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Tachyonic cosmology with cubic contractions of the Riemann tensor
The European Physical Journal C, 2022 AbstractA new cosmological theory is proposed in the theoretical framework of modified gravity theories which is based on a tachyonic field non-minimally coupled with a specific topological invariant constructed with third order contractions of the Riemann tensor.
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FEBS Open Bio, EarlyView.The tumor microenvironment is a dynamic, multifaceted complex system of interdependent cellular, biochemical, and biophysical components. Three‐dimensional in vitro models of the tumor microenvironment enable a better understanding of these interactions and their impact on cancer progression and therapeutic resistance.
Salma T. Rafik +3 more
wiley +1 more source