Results 221 to 230 of about 75,343 (266)
Some of the next articles are maybe not open access.
Nilpotent singular points and compactons
Applied Mathematics and Computation, 2014zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Aiyong Chen, Wentao Huang, Yongan Xie
openaire +1 more source
Singular points of the polarization tensor
Solar Physics, 1996The problem to compute the magnetic field above the chromosphere using data of the vector τ = B t /B t that gives the projected field direction can be solved with different approximations. The field of direction vectors τ is, however, not the only field accessible to observations. The Stokes parameters, which are components of the radiation tensor, can
M. M. Molodensky, L. I. Starkova
openaire +1 more source
Regular singular points as isomonodromic confluences of Fuchsian singular points
Russian Mathematical Surveys, 2001zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire +1 more source
Newton’s Method at Singular Points. II
SIAM Journal on Numerical Analysis, 1980A theorem due to Reddien giving sufficient conditions for convergence of Newton iterates for singular problems is extended.
Decker, D. W., Kelley, C. T.
openaire +2 more sources
Point Counting on Singular Hypersurfaces
2008Let q = p r be a prime power. Let Open image in new window be a homogenous polynomial of degree d. Let Open image in new window be the hypersurface defined by Open image in new window . A natural question to ask is how to determine Open image in new window .
openaire +1 more source
Singular Points and Singular Values of Mappings of Hilbert Manifolds
Journal of Mathematical Sciences, 2004zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Jacquet, S., Sarychev, A.
openaire +1 more source
Summability Tests for Singular Points
Canadian Mathematical Bulletin, 1972King [5] devised two tests for determining when z = 1 is a singular point of the function f(z) defined by1having radius of convergence equal to one. The point z = 1 and radius of convergence one may be chosen without loss of generality.
openaire +2 more sources
On the Singular Points in the Problem of Inversion
The Annals of Mathematics, 1932Nach der Uniformierungstheorie ist es möglich, eine beliebig gegebene Riemannsche Fläche \(G(x, y) = 0\) vom Geschlecht \(p\) in der Form \(x =\varphi(t)\), \(y = \psi(t)\) zu uniformisieren, wo \(\varphi(t)\), \(\psi(t)\) automorphe Funktionen einer Hauptkreisgruppe \(\Gamma\) bezeichnen. Dadurch erhält man für die \(p\) Normalintegrale \(u_\alpha\) \(
openaire +2 more sources
Nonlinear Analysis: Real World Applications, 2011
The authors give two recursive formulas to obtain the singular quantities to know when a singular point of a complex analytic system with linear part \(z'=z\), \(w'=-w\) is integrable. One is obtained searching for obstructions to have a formal first integral and the other one is obtained searching for conditions to have an integrating factor that does
Zhang, Qi, Liu, Yirong, Chen, Haibo
openaire +2 more sources
The authors give two recursive formulas to obtain the singular quantities to know when a singular point of a complex analytic system with linear part \(z'=z\), \(w'=-w\) is integrable. One is obtained searching for obstructions to have a formal first integral and the other one is obtained searching for conditions to have an integrating factor that does
Zhang, Qi, Liu, Yirong, Chen, Haibo
openaire +2 more sources
Efficient Computation of Singular Points
IMA Journal of Numerical Analysis, 1989The author tries to reduce the computational work which is necessary for the iterative construction of singular solutions of systems of nonlinear equations. He proposes variants of a Gauss-Newton-type procedure which is based on a representation of a Moore-Penrose pseudoinverse of a matrix of moderate size.
openaire +2 more sources