archive
Every paper Pith has read. Search by title, abstract, or pith.
1525 papers in math.NA · page 4
-
Adaptive metrics boost convergence in vector optimization approximation
Adaptive Metrics for Norm-Minimization-Based Outer Approximation in Convex Vector Optimization
-
Wavelets serve as eigenfunctions for Koopman analysis
Wavelet-Based Observables for Koopman Analysis: An Extended Dynamic Mode Decomposition Framework
-
Double saddle-point systems split into two block structures
Classification of Double Saddle-Point Systems
-
Adaptive time steps enforce energy balance in port-Hamiltonian DAEs
Goal-Oriented Time Adaptivity for Linear Port-Hamiltonian Differential-Algebraic Equations of Index~1
-
The ℓFEM package offers a loop-free MATLAB implementation of isoparametric finite…
$\ell$FEM: An efficient loop-free Matlab implementation of isoparametric bulk and surface finite elements
-
Estimator flags noisy eigenvalues in finite data spectra
Sampling pseudospectrum for data-driven matrices
-
Elastica++ is a new open-source software framework for fast
Elastica++: A high-performance, multiphysics framework for large interacting assemblies of Cosserat rods
-
Multigrid and neural networks reduce phi-FEM costs
A multigrid and neural network approach to reduce the computational cost of phi-FEM
-
Filtered noise model for Fourier modes captures tracer diffusion in turbulence
Stochastic modeling of Fourier modes in two-dimensional turbulence via filtered white noise
-
Sticky CIR process has unique invariant measure mixing zero and gamma density
Sticky CIR process with potential: invariant measure and exact sampling
-
Sticky CIR process has unique mixed invariant measure
Sticky CIR process with potential: invariant measure and exact sampling
-
M3C converges to critical points for hyperparameter estimation
A Majorization-Minimization with Monte Carlo Approach for Hyperparameter Estimation
-
Layered weights isolate first-front ascent in multiobjective sets
Nonsmooth Set-Gradient Ascent to the Pareto Front via Layered Hypervolume and Magnitude Indicators
-
CUR local error filters perturbations invisible to selected rows and columns
Revisiting CUR Perturbation Analysis: A Local Tangent-Space Expansion
-
Galerkin linear elements deliver sharp rates for discrete fractional Sobolev constant
Galerkin Approximation of the Fractional Sobolev Constant
-
Transformer preconditioner speeds stiff physics 28x
Hierarchical Transformer Preconditioning for Interactive Physics Simulation
-
Hierarchical transformer preconditioner reaches 21 fps on stiff Poisson systems
Hierarchical Transformer Preconditioning for Interactive Physics Simulation
-
Error bounds for multi-patch isogeometric spaces stay independent of spline degree p
Robust approximation error estimates for analysis-suitable $G^1$ isogeometric multi-patch discretizations
-
ViT-K keeps prediction errors linear in coupled fluid flows
ViT-K: A Few-Shot Learning Model for Coupled Fluid-Porous Media Flows with Interface Conditions
-
Adaptive heavy ball iteration converges almost surely with random-equation updates
On a posteriori stopping rules of adaptive stochastic heavy ball method for ill-posed problems
-
Hybrid operator fits sphere data exactly at some nodes and regresses at others
Polynomial interpolation--regression on the sphere
-
Hypernetwork learns WENO weights from coarse data for conservation laws
Hypernetwork-Conditioned WENO5 Conservative-Form CNNs for One-Dimensional Conservation Laws
-
Exact conservation blocks dissipative Euler solutions
Exact conservation and the Onsager threshold: a discrete exterior calculus theory for incompressible Navier-Stokes Equations
-
Exact conservation blocks dissipative Euler solutions
Exact conservation and the Onsager threshold: a discrete exterior calculus theory for incompressible Navier-Stokes Equations
-
Exact conservation excludes dissipative Euler solutions
Exact conservation and the Onsager threshold: a discrete exterior calculus theory for incompressible Navier-Stokes Equations
-
Adaptive per-point mask lifts neural PDE accuracy on sharp features
U-HNO: A U-shaped Hybrid Neural Operator with Sparse-Point Adaptive Routing for Non-stationary PDE Dynamics
-
MTI-FP achieves uniform accuracy for KGS in nonrelativistic limit
A Uniformly Accurate Multiscale Time Integrator for the Klein-Gordon-Schr\"odinger Equations in the Nonrelativistic Regime via Simplified Transmission Conditions
-
NPDo method computes tensor block-diagonalization with global convergence
An NPDo Approach for Tensor Block-Diagonalization
-
Transported acoustic increments remove split error in Active Flux for Euler
Fully Discrete Active Flux Method based on Transported Acoustic Increments for the Compressible Euler Equations
-
Refined projection removes spurious Ritz values without tuning
A refined CJ--SS--RR method with a reliable removal approach of spurious Ritz values for the Hermitian eigenvalue problem
-
Array-RQMC cuts walk-on-spheres variance by up to 2290 times
Walk on spheres and Array-RQMC
-
Quadratic models gain fully linear error bounds without Hessian bounds
Accuracy and Relationships of Quadratic Models in Derivative-free Optimization
-
Forward-only Lanczos reuse yields stable gradients for Hermitian bilinear forms
Fast and Stable Gradient Approximation for Bilinear Forms of Hermitian Matrix Functions
-
Non-symmetric Green's kernels deliver optimal rates for fractional DEs
Approximations with Non-Symmetric Green's Kernels and their Application to Fractional Differential Equations
-
Cross-domain interactions decouple neural operator resolutions
UFO: A Domain-Unification-Free Operator Framework for Generalized Operator Learning
-
LS weak Galerkin method achieves optimal H2 error estimates
A Least-Squares Weak Galerkin Method for Second-Order Elliptic Equations in Non-Divergence Form
-
New sampling method sizes clamped obstacles from one wave
Novel implementation of the extended sampling method for inverse biharmonic scattering
-
Complex boundary method recovers Robin cavities from one Cauchy pair
Cavity shape reconstruction with a homogeneous Robin condition via a constrained coupled complex boundary method with ADMM
-
Complex coupling reconstructs unknown Robin boundaries
Cavity shape reconstruction with a homogeneous Robin condition via a constrained coupled complex boundary method with ADMM
-
Stochastic line-search method speeds 3D CT reconstruction
A Line--Search--Based Stochastic Gradient Method for 3D Computed Tomography
-
Mass lumping produces intrinsic fractional box discretization
Finite element and box-method discretizations for fractional elliptic problems with quadrature and mass lumping
-
Semismooth* Newton method speeds up TV regularization for large tomography problems
Efficient TV regularization of large-scale linear inverse problems via the SCD semismooth* Newton method with applications in tomography
-
Bregman penalty keeps multi-material designs feasible at every point
The SiMPL Method for Multi-Material Topology Optimization
-
New algorithm avoids invalid material mixtures during optimization
The SiMPL Method for Multi-Material Topology Optimization
-
Optimized two-step propagator cuts parareal convergence factor to 0.0064
Optimized Two-Step Coarse Propagators in Parareal Algorithms
-
Two-step propagator cuts parareal convergence to 0.0064
Optimized Two-Step Coarse Propagators in Parareal Algorithms
-
Block-coupled method stabilizes polymer mixing simulations in extruders
A Volume of Fluid Immersed Boundary Method for Industrial Polymer Mixing
-
Bisection collapses all triangles to right triangles in one step
Dynamics of the Longest-Edge Altitude Bisection Algorithm
-
Nonlinear embedding halves latent variables needed for glider shape accuracy
A nonlinear extension of parametric model embedding for dimensionality reduction in parametric shape design
-
Dual-SAV scheme reduces constrained curve flows to linear steps plus tiny nonlinear solve
A stabilized dual-SAV parametric finite element framework for constrained planar geometric flows with mesh regularization