Results 71 to 80 of about 26,995 (188)

Stable piecewise polynomial vector fields [PDF]

, 2012
Consider in R^2 the semi-planes N={y>0} and S ...
Pessoa, Claudio, Sotomayor, Jorge
core   +2 more sources

Volume Quantization with Flexible Singularities for Hexahedral Meshing

Computer Graphics Forum, EarlyView.
Abstract We present a novel algorithm for quantization and subsequent hexahedral mesh generation from seamless volumetric maps. Quantization is the process of choosing integers that represent the numbers of hexahedral elements to be placed in each region of the volume, and transforming the seamless map into an integer‐grid map matching that choice ...
H. Brückler, M. Campen
wiley   +1 more source

Piecewise smooth systems near a co-dimension 2 discontinuity manifold: can one say what should happen?

, 2015
We consider a piecewise smooth system in the neighborhood of a co-dimension 2 discontinuity manifold $\Sigma$. Within the class of Filippov solutions, if $\Sigma$ is attractive, one should expect solution trajectories to slide on $\Sigma$.
A. Dontchev, A. F. Filippov, A. Machina, A. Polynikis, E. Plahte, J. C. Alexander, J. C. Alexander, J. Cortes, J. Llibre, J. Sotomayor, L. Dieci, L. Dieci, L. Dieci, L. Dieci, L. Dieci, L. Dieci, L. Dieci, M. di Bernardo, M. Jeffrey, N. Del Buono, N. Guglielmi, T. Seidman, T. Seidman, V. I. Utkin, V. I. Utkin, Z. Artstein   +25 more
core   +1 more source

Establishing Shape Correspondences: A Survey

Computer Graphics Forum, EarlyView.
Abstract Shape correspondence between surfaces in 3D is a central problem in geometry processing, concerned with establishing meaningful relations between surfaces. While all correspondence problems share this goal, specific formulations can differ significantly: Downstream applications require certain properties that correspondences must satisfy ...
A. Heuschling, H. Meinhold, L. Kobbelt
wiley   +1 more source

Lorenz-like systems and classical dynamical equations with memory forcing: a new point of view for singling out the origin of chaos

, 2002
A novel view for the emergence of chaos in Lorenz-like systems is presented. For such purpose, the Lorenz problem is reformulated in a classical mechanical form and it turns out to be equivalent to the problem of a damped and forced one dimensional ...
A. d’Anjou, A. Mazzino, B. Saltzman, C. Raab, C.P. Unsworth, C.T. Sparrow, D. Pazó, D. Pingel, D. Vincenzi, D. Xu, E.N. Lorenz, F.C. Moon, F.C. Moon, G. Yan, H. Busch, H. Nijmeijer, I. Stewart, J.B. Gao, K. Pyragas, Lord Rayleigh, M. Clerc, R. Festa, R. Festa, S. Iplikci, S.W. Shaw, T. Matsumoto, T. Yang, W. Tucker   +27 more
core   +1 more source

Differentiable Variable Fonts

Computer Graphics Forum, EarlyView.
Abstract Typography is an essential component of visual communication. Editing and animating text appearance for graphic designs, title sequences, commercials, and logos remain highly skilled tasks requiring detailed, hands‐on efforts from pro artists. Automating these challenging manual workflows requires balancing the competing goals of maintaining a
Kinjal Parikh, Danny M. Kaufman, David I.W. Levin, Alec Jacobson   +3 more
wiley   +1 more source

Embedding Optimization of Layouts via Distortion Minimization

Computer Graphics Forum, EarlyView.
Abstract Given an embedding of a layout in the surface of a target mesh, we consider the problem of optimizing the embedding geometrically. Layout embeddings partition the surface into multiple disk‐like patches, making them particularly useful for parametrization and remeshing tasks, such as quad‐remeshing, since these problems can then be solved on ...
A. Heuschling, I. Lim, L. Kobbelt
wiley   +1 more source

Two-parameter nonsmooth grazing bifurcations of limit cycles: classification and open problems [PDF]

, 2005
This paper proposes a strategy for the classification of codimension-two grazing bifurcations of limit cycles in piecewise smooth systems of ordinary differential equations.
Champneys, AR, di Bernardo, M, Hogan, SJ, Homer, ME, Kowalczyk, PS, Kuznetsov, YA, Nordmark, A, Piiroinen, PT   +7 more
core   +1 more source

Distributional and Tail‐Dependent Perspectives in Economic Relationships: A Review of Quantile Regression Application

Journal of Economic Surveys, EarlyView.
ABSTRACT There is an increased proportion of studies using quantile‐based regression methodology (QR) in economics. They offer a robust alternative to classical mean regressions, which can estimate non‐normal variables with distributional heterogeneity in the dependent variable.
Shajara Ul‐Durar, Konstantinos A. Dimitriadis, Noman Arshed, Marco De Sisto, Hamidreza Harati   +4 more
wiley   +1 more source

Measure‐valued processes for energy markets

Mathematical Finance, Volume 35, Issue 2, Page 520-566, April 2025.
Abstract We introduce a framework that allows to employ (non‐negative) measure‐valued processes for energy market modeling, in particular for electricity and gas futures. Interpreting the process' spatial structure as time to maturity, we show how the Heath–Jarrow–Morton approach can be translated to this framework, thus guaranteeing arbitrage free ...
Christa Cuchiero, Luca Di Persio, Francesco Guida, Sara Svaluto‐Ferro   +3 more
wiley   +1 more source