Results 61 to 70 of about 4,846,198 (334)
Entropy of causal diamond ensembles
SciPost Physics, 2023 We define a canonical ensemble for a gravitational causal diamond by introducing an artificial York boundary inside the diamond with a fixed induced metric and temperature, and evaluate the partition function using a saddle point approximation.
Ted Jacobson, Manus R. Visser
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Diagonalization of indefinite saddle point forms [PDF]
, 2020 We obtain sufficient conditions that ensure block diagonalization (by a direct rotation) of sign-indefinite symmetric sesquilinear forms as well as the associated operators that are semi-bounded neither from below nor from above. In the semi-bounded case, we refine the obtained results and, as an example, revisit the block Stokes Operator from fluid ...
Krešimir Veselić +4 more
openaire +3 more sources
Advanced Science, EarlyView.The universality of the landscape‐flux theory with the mode expansion method for analyzing spatial patterns is illustrated by applying it to vegetation patterns in semi‐arid ecosystems. The framework quantifies global dynamics and most probable transition pathways between ecosystem states under random forcing.
Jie Su +4 more
wiley +1 more source
Saddle point duality theorems for Pareto optimization
Journal of Numerical Analysis and Approximation Theory, 1986 Not available.
Paul Iacob
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Journal of Mathematics, 2021 The preconditioned generalized shift-splitting (PGSS) iteration method is unconditionally convergent for solving saddle point problems with nonsymmetric coefficient matrices.
Yao Xiao, Qingbiao Wu, Yuanyuan Zhang
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Advanced Science, EarlyView.Dual biomimetic active sites, i.e., mononuclear {ZnII(L)(H2O)} and dinuclear {L2ZnII(CHO2)(OH)ZnIIL2}, have been successfully intergrated into a metal–organic cage, Zn20‐MOC. These two different active sites in Zn20‐MOC catalyze different steps of cascade trimerization of 1,2‐diaminocyclohexane. The mononuclear {ZnII(L)(H2O)} site catalyzes the initial
Xiao‐Jun Chai +10 more
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Lagrangian Duality for Multiobjective Programming Problems in Lexicographic Order
Abstract and Applied Analysis, 2013 This paper deals with a constraint multiobjective programming problem and its dual problem in the lexicographic order. We establish some duality theorems and present several existence results of a Lagrange multiplier and a lexicographic saddle point ...
X. F. Hu, L. N. Wang
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A Memristive Diode Bridge-Based Canonical Chua’s Circuit
Entropy, 2014 A novel memristor circuit is presented, which is generated from the canonical Chua’s circuit by replacing the Chua’s diode with a first order memristive diode bridge.
Mo Chen +4 more
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Advanced Science, EarlyView.Inspired by the structural and functional characteristics of bone, bionic nanomaterials combined with nanotechnology can more accurately replicate stem cell niches, enabling the design of bone tissue engineering scaffolds with diverse nanoscale properties to promote stem cell migration, proliferation, and differentiation. This precise control over stem
Yangfan Pei +11 more
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Advanced Science, EarlyView.Arbitrary structural regulations of triple periodic hyperbolic surfaces are achieved using mathematical Fourier construction and 3D printing technology, enriching the geometric forms and achieving optimized mechanical behaviors. Abstract Triply periodic hyperbolic surfaces (TPHSs) have attracted significant attention due to their exceptional ...
Yanhong Zhang +6 more
wiley +1 more source