Search results

Items from 1 to 4 out of 4 results

chapter

On cliques of exceptional units and Lenstra's construction of Euclidean fields

Armin Leutbecher, Gerhard Niklasch

Lecture Notes in Mathematics > Number Theory > 150-178

In the wake of a method for detecting Euclidean number fields with the aid of exceptional units, described in 1977 by H. W. Lenstra jr., we study a group action on cliques of exceptional units, determine the corresponding group and exploit the action in some concrete rings. This has also yielded 37 new Euclidean fields in degrees 5, 6, 7, 8, 9, and 10.

article

Boundary Identification for a Blast Furnace*

Yongji Tan, Rui He

Chinese Annals of Mathematics, Series B > 2007 > 28 > 5 > 571-582

In this paper, the authors discuss an inverse boundary problem for the axi-symmetric steady-state heat equation, which arises in monitoring the boundary corrosion for the blast-furnace. Measure temperature at some locations are used to identify the shape of the corrosion boundary. The numerical inversion is complicated and consuming since the wear-line varies during the process and the boundary in...

article

Global Existence of Classical Solutions for Some Oldroyd-B Model via the Incompressible Limit*

Zhen Lei

Chinese Annals of Mathematics, Series B > 2006 > 27 > 5 > 565-580

In this paper, we prove local and global existence of classical solutions for a system of equations concerning an incompressible viscoelastic fluid of Oldroyd-B type via the incompressible limit when the initial data are sufficiently small.

article

Uniformity over primes of tamely ramified splittings

Ilaria Del Corso, Roberto Dvornicich

manuscripta mathematica > 2000 > 101 > 2 > 239-266

Abstract:We fix a prime p and let f(X) vary over all monic integer polynomials of fixed degree n. Given any possible shape of a tamely ramified splitting of p in an extension of degree n, we prove that there exists a rational function (X)(X) such that the density of the monic integer polynomials f(X) for which the splitting of p has the given shape in [X]/f(X) is (p) (here reducible polynomials can...

Filter options

Publication date

Set your own date range

Publication type

article (3)
book (1)

Keywords

11R27 (4)
11R11 (2)
11R70 (2)
5C25 (1)
11S05 (1)
13F07 (1)
20B25 (1)
AXI-SYMMETRIC FUNDAMENTAL SOLUTION (1)
GLOBAL EXISTENCE (1)
INCOMPRESSIBLE LIMIT (1)
INVERSE PROBLEM (1)
MATHEMATICS SUBJECT CLASSIFICATION (1991): 11R45 (1)
OLDROYD MODEL (1)
PERTURBATION METHOD (1)
more

INFONA - science communication portal

Search results

On cliques of exceptional units and Lenstra's construction of Euclidean fields

Boundary Identification for a Blast Furnace*

Global Existence of Classical Solutions for Some Oldroyd-B Model via the Incompressible Limit*

Uniformity over primes of tamely ramified splittings

Add recipient

Sending message cancelled

Are you sure you want to cancel sending this message?

Send message

Filter options

Publication date

Date range setting

Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.

Publication type

Keywords

Reporting an error / abuse

Sending the report failed

Accessibility options