Search results for "positivity"

Hits ?▲	Authors	Title	Venue	Year	Link	Author keywords
68	Tom Lyche, Marie-Laurence Mazure	Total positivity and the existence of piecewise exponential B-splines.	Adv. Comput. Math.	2006	DBLP DOI BibTeX RDF	Chebyshev systems, piecewise exponential splines, B-spline basis, blossoms, total positivity
58	Claudio Altafini	Positivity for Matrix Systems: A Case Study from Quantum Mechanics.	POSTA	2003	DBLP DOI BibTeX RDF
56	Silvio Valentini	The problem of the formalization of constructive topology.	Arch. Math. Log.	2005	DBLP DOI BibTeX RDF
54	Marie-Laurence Mazure	Chebyshev splines beyond total positivity.	Adv. Comput. Math.	2001	DBLP DOI BibTeX RDF	Chebyshev spaces, Chebyshev blossoming, connection matrices, B-splines, shape parameters, total positivity
54	Hua-Zhong Tang, Kun Xu 0001	Positivity-Preserving Analysis of Explicit and Implicit Lax-Friedrichs Schemes for Compressible Euler Equations.	J. Sci. Comput.	2000	DBLP DOI BibTeX RDF	Lax-Friedrichs (LxF) schemes, positivity, Euler equations
44	Lakshminarayanan Renganarayanan, Sanjay V. Rajopadhye	Positivity, posynomials and tile size selection.	SC	2008	DBLP DOI BibTeX RDF
44	Carles L. Matson	Resolution Limits for Band-Limited Positivity-Constrained 1-D Signals.	ICIP (1)	1997	DBLP DOI BibTeX RDF
42	Ning Wang 0012, Jonathan Gratch	Don't just stare at me!	CHI	2010	DBLP DOI BibTeX RDF	gaze, virtual agent, rapport
42	Guangyue Han, Brian H. Marcus	Analyticity of Entropy Rate of Hidden Markov Chains.	IEEE Trans. Inf. Theory	2006	DBLP DOI BibTeX RDF
38		Visualization of Positive and Monotone Data by Rational Quadratic Spline.	IVIC	2009	DBLP DOI BibTeX RDF	Visualization, Interpolation, Positivity, Monotonicity, Shape Preserving
38	Thomas J. Connolly, Richard G. Lane	Gradient Methods for Superresolution.	ICIP (1)	1997	DBLP DOI BibTeX RDF	oscillatory artifacts, null objects, Tikhonov-Miller regularization, positivity constraints, image processing, image resolution, conjugate gradient methods, superresolution, fast convergence
38	Xiaoping Li, Tongwen Chen	Optimal L1L1 Approximation of the Gaussian Kernel With Application to Scale-Space Construction.	IEEE Trans. Pattern Anal. Mach. Intell.	1995	DBLP DOI BibTeX RDF	${cal L}_1$ approximation, scale-space, Gaussian kernel, total positivity
31	David G. L. Wang, Monica M. Y. Wang	The e-positivity and Schur positivity of some spiders and broom trees.	Discret. Appl. Math.	2023	DBLP DOI BibTeX RDF
31	Dirk Kerzel, Stanislas Huynh Cong	Biased Competition between Targets and Distractors Reduces Attentional Suppression: Evidence from the Positivity Posterior Contralateral and Distractor Positivity.	J. Cogn. Neurosci.	2022	DBLP DOI BibTeX RDF
31	S. Akshay 0001, Hugo Bazille, Blaise Genest, Mihir Vahanwala	On Robustness for the Skolem, Positivity and Ultimate Positivity Problems.	CoRR	2022	DBLP DOI BibTeX RDF
31	Iman Sargolzahi	Positivity of the assignment map implies complete positivity of the reduced dynamics.	Quantum Inf. Process.	2020	DBLP DOI BibTeX RDF
31	Shi-Mei Ma, Jun Ma 0017, Yeong-Nan Yeh	γ-positivity and partial γ-positivity of descent-type polynomials.	J. Comb. Theory, Ser. A	2019	DBLP DOI BibTeX RDF
31	N. K. Bose	Positivity, Complete Positivity, and SOS Representation.	IEEE Trans. Autom. Control.	2009	DBLP DOI BibTeX RDF
29	Yohan Boichut, Pierre-Cyrille Héam, Olga Kouchnarenko	How to Tackle Integer Weighted Automata Positivity.	RP	2009	DBLP DOI BibTeX RDF
29	Fatima Boudaoud, Fabrizio Caruso, Marie-Françoise Roy	Certificates of Positivity in the Bernstein Basis.	Discret. Comput. Geom.	2008	DBLP DOI BibTeX RDF
29	Mohamed Laabissi, Mohamed E. Achhab, Joseph J. Winkin, Denis Dochain	Positivity and Invariance Properties of Nonisothermal Tubular Reactor Nonlinear Models.	POSTA	2003	DBLP DOI BibTeX RDF
28	Xia Hong 0001, Sheng Chen 0001, Chris J. Harris	A Forward-Constrained Regression Algorithm for Sparse Kernel Density Estimation.	IEEE Trans. Neural Networks	2008	DBLP DOI BibTeX RDF
28	Daniel Fagerström	Temporal Scale Spaces.	Int. J. Comput. Vis.	2005	DBLP DOI BibTeX RDF	temporal measurement, stable density functions, fractional diffusion, scale-space
28	Andreas Abel 0001, Ralph Matthes	Fixed Points of Type Constructors and Primitive Recursion.	CSL	2004	DBLP DOI BibTeX RDF
28	Daniel Fagerström	Temporal Scale Spaces.	Scale-Space	2003	DBLP DOI BibTeX RDF
24	Jisheng Dai, Chunqi Chang, Zhongfu Ye, Yeung Sam Hung	An Efficient Convex Nonnegative Network Component Analysis for Gene Regulatory Network Reconstruction.	PRIB	2009	DBLP DOI BibTeX RDF	network component analysis, positivity constraints, microarray, Gene regulatory network, convex programming
24	Jiashan Tang, Yiqiang Q. Zhao	Stationary tail asymptotics of a tandem queue with feedback.	Ann. Oper. Res.	2008	DBLP DOI BibTeX RDF	?-positivity, Geometric decay, Feedback, Tandem queue, Tail asymptotics
24	Jorge Delgado 0001, Juan Manuel Peña 0001	On the generalized Ball bases.	Adv. Comput. Math.	2006	DBLP DOI BibTeX RDF	evaluation algorithms, error analysis, shape preservation, total positivity
24	Onno Bokhove	Flooding and Drying in Discontinuous Galerkin Finite-Element Discretizations of Shallow-Water Equations. Part 1: One Dimension.	J. Sci. Comput.	2005	DBLP DOI BibTeX RDF	flooding and drying, free-boundary dynamics, discontinuous Galerkin finite-element method, positivity of mean water depth, Shallow-water equations
24	Esmeralda Mainar, Juan Manuel Peña 0001	Quadratic-Cycloidal Curves.	Adv. Comput. Math.	2004	DBLP DOI BibTeX RDF	C-curves, B-basis, B-algorithms, QC-curves, B-splines, total positivity
24	Marie-Laurence Mazure	Blossoms and Optimal Bases.	Adv. Comput. Math.	2004	DBLP DOI BibTeX RDF	B-spline basis, corner cutting algorithms, extended Chebyshev spaces, Chebyshev blossoming, blossoming, total positivity, Bernstein basis
24	Muhammad Sarfraz 0001	Rational Spline Interpolation Preserving the Shape of the Monotonic Data.	Computer Graphics International	1997	DBLP DOI BibTeX RDF	rational spline interpolation, monotonic data shape preservation, curve representation, cubic numerators, quadratic denominators, data visualisation, positivity, convexity, monotonicity, shape preservation, scientific data, rational interpolant
15	Zeyu Zhou, Wei Jiang 0008, Zhen Zhang	A Regularized Model for Wetting/Dewetting Problems: Positivity and Asymptotic Analysis.	J. Nonlinear Sci.	2024	DBLP DOI BibTeX RDF
15	Timbwoga A. J. Ouermi, Robert M. Kirby, Martin Berzins	Algorithm 1041: HiPPIS - A High-order Positivity-preserving Mapping Software for Structured Meshes.	ACM Trans. Math. Softw.	2024	DBLP DOI BibTeX RDF
15	Ryosuke Shiga, Tomomichi Hagiwara, Yoshio Ebihara	Internal/External Positivity of Sampled-Data Systems: Definitions and the Necessary and Sufficient Conditions.	IEEE Access	2024	DBLP DOI BibTeX RDF
15	Hasan Karjoun, Abdelaziz Beljadid	A well-balanced and positivity-preserving numerical model for overland flow under vegetation effects.	Math. Comput. Simul.	2024	DBLP DOI BibTeX RDF
15	Shi-Mei Ma, Hao Qi, Jean Yeh, Yeong-Nan Yeh	Positivity of Narayana polynomials and Eulerian polynomials.	Adv. Appl. Math.	2024	DBLP DOI BibTeX RDF
15	Esmeralda Mainar, Juan Manuel Peña 0001, Beatriz Rubio	On the Total Positivity and Accurate Computations of r-Bell Polynomial Bases.	Axioms	2024	DBLP DOI BibTeX RDF
15	Shengrong Ding, Kailiang Wu	A New Discretely Divergence-Free Positivity-Preserving High-Order Finite Volume Method for Ideal MHD Equations.	SIAM J. Sci. Comput.	2024	DBLP DOI BibTeX RDF
15	Bohyun Kim, Hangjie Ji, Andrea L. Bertozzi, Abolfazl Sadeghpour, Y. Sungtaek Ju	A positivity-preserving numerical method for a thin liquid film on a vertical cylindrical fiber.	J. Comput. Phys.	2024	DBLP DOI BibTeX RDF
15	Yingying Meng, Yuwei Wan, Chunyu Kit	Du Fu's conspicuous negativity and Li Bai's hidden positivity: a sentiment comparison and exploration.	Digit. Scholarsh. Humanit.	2024	DBLP DOI BibTeX RDF
15	Shuo Li, Mingzhe Cui, Choon Ki Ahn, Zhengrong Xiang, Imran Ghous	Positivity and Saturated Stabilization of Singular Switched Positive Systems Under Mode-Dependent Minimum Dwell Time.	IEEE Trans. Syst. Man Cybern. Syst.	2024	DBLP DOI BibTeX RDF
15	Fenghua Tong, Yongyong Cai	Positivity preserving and mass conservative projection method for the Poisson-Nernst-Planck equation.	CoRR	2024	DBLP DOI BibTeX RDF
15	José A. Carrillo 0001, Hailiang Liu, Hui Yu	Positivity-preserving and energy-dissipating discontinuous Galerkin methods for nonlinear nonlocal Fokker-Planck equations.	CoRR	2024	DBLP DOI BibTeX RDF
15	Yingsong Jiang, Ruishu Liu, Xiaojie Wang, Jinghua Zhuo	Unconditionally positivity-preserving approximations of the Ait-Sahalia type model: Explicit Milstein-type schemes.	CoRR	2024	DBLP DOI BibTeX RDF
15	Ruishu Liu, Yulin Cao, Xiaojie Wang	Unconditionally positivity-preserving explicit Euler-type schemes for a generalized Ait-Sahalia model.	CoRR	2024	DBLP DOI BibTeX RDF
15	Chen Liu, Xiangxiong Zhang	An optimization based limiter for enforcing positivity in a semi-implicit discontinuous Galerkin scheme for compressible Navier-Stokes equations.	CoRR	2024	DBLP DOI BibTeX RDF
15	Xiaojuan Wu, Siqing Gan	Multilevel Monte Carlo methods for positivity-preserving approximations of the Heston 3/2-model.	CoRR	2024	DBLP DOI BibTeX RDF
15	Mirco Ciallella, Lorenzo Micalizzi, Victor Michel-Dansac, Philipp Öffner, Davide Torlo	A high-order, fully well-balanced, unconditionally positivity-preserving finite volume framework for flood simulations.	CoRR	2024	DBLP DOI BibTeX RDF
15	Jiangfu Wang, Huazhong Tang, Kailiang Wu	High-order accurate positivity-preserving and well-balanced discontinuous Galerkin schemes for ten-moment Gaussian closure equations with source terms.	CoRR	2024	DBLP DOI BibTeX RDF
15	Xuehua Yang, Zhimin Zhang	On conservative, positivity preserving, nonlinear FV scheme on distorted meshes for the multi-term nonlocal Nagumo-type equations.	Appl. Math. Lett.	2024	DBLP DOI BibTeX RDF
15	Hongfu Yang, Jianhua Huang	Strong convergence and extinction of positivity preserving explicit scheme for the stochastic SIS epidemic model.	Numer. Algorithms	2024	DBLP DOI BibTeX RDF
15	Boyang Yu, Yonghai Li, Jiangguo Liu	A Positivity-Preserving and Robust Fast Solver for Time-Fractional Convection-Diffusion Problems.	J. Sci. Comput.	2024	DBLP DOI BibTeX RDF
15	Yan Tan, Qiang Zhang, Jun Zhu	A New Positivity-Preserving Technique for High-Order Schemes to Solve Extreme Problems of Euler Equations on Structured Meshes.	J. Sci. Comput.	2024	DBLP DOI BibTeX RDF
15	Mingyang Pan, Sifu Liu, Wenxing Zhu, Fengyu Jiao, Dongdong He	A linear, second-order accurate, positivity-preserving and unconditionally energy stable scheme for the Navier-Stokes-Poisson-Nernst-Planck system.	Commun. Nonlinear Sci. Numer. Simul.	2024	DBLP DOI BibTeX RDF
15	Fengna Yan, Jaap J. W. van der Vegt, Yinhua Xia, Yan Xu 0008	Entropy dissipative higher order accurate positivity preserving time-implicit discretizations for nonlinear degenerate parabolic equations.	J. Comput. Appl. Math.	2024	DBLP DOI BibTeX RDF
15	Jorge Eduardo Macías-Díaz, Adán J. Serna-Reyes, Luis A. Flores-Oropeza	A stable and convergent finite-difference model which conserves the positivity and the dissipativity of Gibbs' free energy for a nonlinear combustion equation.	J. Comput. Appl. Math.	2024	DBLP DOI BibTeX RDF
15	Xinyuan Liu 0004, Tao Xiong, Yang Yang	High order positivity-preserving nodal discontinuous Galerkin methods for anisotropic diffusion problems.	J. Comput. Appl. Math.	2024	DBLP DOI BibTeX RDF
15	Alaa Ibrahim, Bruno Salvy	Positivity Certificates for Linear Recurrences.	SODA	2024	DBLP DOI BibTeX RDF
15	Zhangbin Li, Dan Guo, Jinxing Zhou, Jing Zhang, Meng Wang 0001	Object-Aware Adaptive-Positivity Learning for Audio-Visual Question Answering.	AAAI	2024	DBLP DOI BibTeX RDF
15	Pan Zhao, Antoine Chambaz, Julie Josse, Shu Yang	Positivity-free Policy Learning with Observational Data.	AISTATS	2024	DBLP BibTeX RDF
15	Ron M. Adin, Yuval Roichman	Cyclic Descents, Matchings and Schur-Positivity.	Electron. J. Comb.	2023	DBLP DOI BibTeX RDF
15	Vinayak Jagadish, R. Srikanth 0001, Francesco Petruccione	Initial Correlations and Complete Positivity of Dynamical Maps.	Open Syst. Inf. Dyn.	2023	DBLP DOI BibTeX RDF
15	Esmeralda Mainar, Juan Manuel Peña 0001, Beatriz Rubio	Total positivity and accurate computations with Gram matrices of Said-Ball bases.	Numer. Linear Algebra Appl.	2023	DBLP DOI BibTeX RDF
15	Han Ma, Qimin Zhang, Xinzhong Xu	Positivity-Preserving Numerical Method for a Stochastic Multi-Group SIR Epidemic Model.	Comput. Methods Appl. Math.	2023	DBLP DOI BibTeX RDF
15	Nicholas Gaspelin, Dominique Lamy, Howard E. Egeth, Heinrich R. Liesefeld, Dirk Kerzel, Ananya Mandal, Matthias M. Müller, Jeffrey D. Schall, Anna Schubö, Heleen A. Slagter, Brad T. Stilwell, Dirk van Moorselaar	The Distractor Positivity Component and the Inhibition of Distracting Stimuli.	J. Cogn. Neurosci.	2023	DBLP DOI BibTeX RDF
15	Shousuke Ohmori, Yoshihiro Yamazaki	Types and stability of fixed points for positivity-preserving discretized dynamical systems in two dimensions.	JSIAM Lett.	2023	DBLP DOI BibTeX RDF
15	Christian Gaetz, Laura Pierson	Positivity of permutation pattern character polynomials.	Adv. Appl. Math.	2023	DBLP DOI BibTeX RDF
15	Ruifang Yan, Wei Tong, Guoxian Chen	A mass conservative, well balanced and positivity-preserving central scheme for shallow water equations.	Appl. Math. Comput.	2023	DBLP DOI BibTeX RDF
15	Hari Mohan Srivastava, Pshtiwan Othman Mohammed, Juan Luis García Guirao, Dumitru Baleanu, Eman Al-Sarairah, Rashid Jan	A Study of Positivity Analysis for Difference Operators in the Liouville-Caputo Setting.	Symmetry	2023	DBLP DOI BibTeX RDF
15	Ho Jae Lee	Positivity and separation principle for observer-based output-feedback disturbance attenuation of uncertain discrete-time fuzzy models with immeasurable premise variables.	J. Frankl. Inst.	2023	DBLP DOI BibTeX RDF
15	Angela Fontan, Lingfei Wang, Yiguang Hong, Guodong Shi, Claudio Altafini	Multiagent Consensus Over Time-Invariant and Time-Varying Signed Digraphs via Eventual Positivity.	IEEE Trans. Autom. Control.	2023	DBLP DOI BibTeX RDF
15	Hamed Taghavian, Mikael Johansson 0001	External Positivity of Discrete-Time Linear Systems: Transfer Function Conditions and Output Feedback.	IEEE Trans. Autom. Control.	2023	DBLP DOI BibTeX RDF
15	Nuo Lei, Juan Cheng, Chi-Wang Shu	A high order positivity-preserving polynomial projection remapping method.	J. Comput. Phys.	2023	DBLP DOI BibTeX RDF
15	Xueling Huang, Jie Shen 0001	Bound/positivity preserving SAV schemes for the Patlak-Keller-Segel-Navier-Stokes system.	J. Comput. Phys.	2023	DBLP DOI BibTeX RDF
15	Tarik Dzanic, Freddie D. Witherden, Luigi Martinelli	A positivity-preserving and conservative high-order flux reconstruction method for the polyatomic Boltzmann-BGK equation.	J. Comput. Phys.	2023	DBLP DOI BibTeX RDF
15	Yupeng Ren, Kailiang Wu, Jianxian Qiu, Yulong Xing	On high order positivity-preserving well-balanced finite volume methods for the Euler equations with gravitation.	J. Comput. Phys.	2023	DBLP DOI BibTeX RDF
15	Jaeyoung Jung, Jin Hwan Hwang	Path-conservative positivity-preserving well-balanced finite volume WENO method for porous shallow water equations.	J. Comput. Phys.	2023	DBLP DOI BibTeX RDF
15	Ziyao Xu, Chi-Wang Shu	On the conservation property of positivity-preserving discontinuous Galerkin methods for stationary hyperbolic equations.	J. Comput. Phys.	2023	DBLP DOI BibTeX RDF
15	Jie Ding, Zhongming Wang, Shenggao Zhou	Energy dissipative and positivity preserving schemes for large-convection ion transport with steric and solvation effects.	J. Comput. Phys.	2023	DBLP DOI BibTeX RDF
15	Yaguang Gu, Zhen Gao 0002, Guanghui Hu, Peng Li, Qingcheng Fu	High order well-balanced positivity-preserving scale-invariant AWENO scheme for Euler systems with gravitational field.	J. Comput. Phys.	2023	DBLP DOI BibTeX RDF
15	Chen Liu, Xiangxiong Zhang	A positivity-preserving implicit-explicit scheme with high order polynomial basis for compressible Navier-Stokes equations.	J. Comput. Phys.	2023	DBLP DOI BibTeX RDF
15	Yimin Lin, Jesse Chan, Ignacio Tomas	A positivity preserving strategy for entropy stable discontinuous Galerkin discretizations of the compressible Euler and Navier-Stokes equations.	J. Comput. Phys.	2023	DBLP DOI BibTeX RDF
15	Xiaolu Gu, Yue Li, Juan Cheng, Chi-Wang Shu	A high order positivity-preserving conservative WENO remapping method based on a moving mesh solver.	J. Comput. Phys.	2023	DBLP DOI BibTeX RDF
15	Lintao Huang, Zhen-Hua Jiang, Xueyu Qin, Xin Zhang, Chao Yan 0005	High-order positivity-preserving method in the flux reconstruction framework for the simulation of two-medium flow.	J. Comput. Phys.	2023	DBLP DOI BibTeX RDF
15	Jinjing Xu, Fei Zhao, Zhiqiang Sheng, Guangwei Yuan	A positivity-preserving finite volume scheme for multi-group neutron diffusion kinetics equations with delayed neutrons.	Comput. Math. Appl.	2023	DBLP DOI BibTeX RDF
15	Xu Qian, Jian Dong	Positivity-preserving nonstaggered central difference schemes solving the two-layer open channel flows.	Comput. Math. Appl.	2023	DBLP DOI BibTeX RDF
15	Lei Lin, Junliang Lv, Dan Wu	Error estimate of the cell-centered nonlinear positivity-preserving two-point flux approximation schemes.	Comput. Math. Appl.	2023	DBLP DOI BibTeX RDF
15	Dan Qin, Kai Fu, Dong Liang 0004	Positivity preserving temporal second-order spatial fourth-order conservative characteristic methods for convection dominated diffusion equations.	Comput. Math. Appl.	2023	DBLP DOI BibTeX RDF
15	William Y. C. Chen, Amy M. Fu, Sherry H. F. Yan	The Gessel correspondence and the partial γ-positivity of the Eulerian polynomials on multiset Stirling permutations.	Eur. J. Comb.	2023	DBLP DOI BibTeX RDF
15	Tarik Dzanic, Freddie D. Witherden	Positivity-preserving entropy filtering for the ideal magnetohydrodynamics equations.	CoRR	2023	DBLP DOI BibTeX RDF
15	Chen Liu, Xiangxiong Zhang	A positivity-preserving implicit-explicit scheme with high order polynomial basis for compressible Navier-Stokes equations.	CoRR	2023	DBLP DOI BibTeX RDF
15	Ronald D. Haynes, Scott MacLachlan, Dawei Wang	A positivity-preserving unigrid method for elliptic PDEs.	CoRR	2023	DBLP DOI BibTeX RDF
15	Bohyun Kim, Hangjie Ji, Andrea L. Bertozzi, Abolfazl Sadeghpour, Y. Sungtaek Ju	A positivity-preserving numerical method for a thin liquid film on a vertical cylindrical fiber.	CoRR	2023	DBLP DOI BibTeX RDF
15	Michael T. Jury, Georgios Tsikalas	Positivity conditions on the annulus via the double-layer potential kernel.	CoRR	2023	DBLP DOI BibTeX RDF
15	Alaa Ibrahim, Bruno Salvy	Positivity certificates for linear recurrences.	CoRR	2023	DBLP DOI BibTeX RDF
15	Jan Giesselmann, Niklas Kolbe	A posteriori error analysis of a positivity preserving scheme for the power-law diffusion Keller-Segel model.	CoRR	2023	DBLP DOI BibTeX RDF
15	Mihir Vahanwala	Skolem and Positivity Completeness of Ergodic Markov Chains.	CoRR	2023	DBLP DOI BibTeX RDF
15	Eric J. Ching, Ryan F. Johnson, Sarah Burrows, Jacklyn Higgs, Andrew D. Kercher	Positivity-preserving and entropy-bounded discontinuous Galerkin method for the chemically reacting, compressible Navier-Stokes equations.	CoRR	2023	DBLP DOI BibTeX RDF
15	Inmaculada Higueras, Teo Roldán	A new insight on positivity and contractivity of the Crank-Nicolson scheme for the heat equation.	CoRR	2023	DBLP DOI BibTeX RDF