Changeset 731e67e in git for Singular/LIB/zeroset.lib
- Timestamp:
- Jul 18, 2006, 5:48:31 PM (18 years ago)
- Branches:
- (u'spielwiese', 'fe61d9c35bf7c61f2b6cbf1b56e25e2f08d536cc')
- Children:
- a15d90a2e309f3fabc9f9d147ba93e4fbaff9e3d
- Parents:
- dd73043aece50a3b540b469cacfe1e7bb5712915
- File:
-
- 1 edited
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Singular/LIB/zeroset.lib
rdd73043 r731e67e 1 1 // Last change 12.02.2001 (Eric Westenberger) 2 2 /////////////////////////////////////////////////////////////////////////////// 3 version="$Id: zeroset.lib,v 1.1 4 2005-05-10 17:56:17Singular Exp $";3 version="$Id: zeroset.lib,v 1.15 2006-07-18 15:48:31 Singular Exp $"; 4 4 category="Symbolic-numerical solving"; 5 5 info=" … … 7 7 AUTHOR: Thomas Bayer, email: tbayer@mathematik.uni-kl.de 8 8 http://wwwmayr.informatik.tu-muenchen.de/personen/bayert/ 9 Current Ad ress: Institut fuer Informatik, TU Muenchen9 Current Address: Institut fuer Informatik, TU Muenchen 10 10 11 11 OVERVIEW: 12 12 Algorithms for finding the zero-set of a zero-dim. ideal in Q(a)[x_1,..,x_n], 13 Roots and Factorization of univariate polynomials over Q(a)[t]14 where a is an algebraic number. Written in the frame of the13 roots and factorization of univariate polynomials over Q(a)[t] 14 where a is an algebraic number. Written in the scope of the 15 15 diploma thesis (advisor: Prof. Gert-Martin Greuel) 'Computations of moduli 16 16 spaces of semiquasihomogeneous singularities and an implementation in Singular'. … … 169 169 @end format 170 170 ASSUME: basering = Q[x,a] ideal mpoly must be defined, it might be 0! 171 NOTE: might change the ideal mpoly 171 NOTE: might change the ideal mpoly!! 172 172 EXAMPLE: example Roots; shows an example 173 173 " … … 408 408 proc InvertNumberMain(poly f) 409 409 "USAGE: InvertNumberMain(f); where f is a polynomial 410 PURPOSE: compute 1/f if f is a number in Q(a) i.e., f is represented by a410 PURPOSE: compute 1/f if f is a number in Q(a), i.e., f is represented by a 411 411 polynomial in Q[a]. 412 412 RETURN: poly 1/f … … 507 507 proc QuotientMain(poly f, poly g) 508 508 "USAGE: QuotientMain(f, g); where f,g are polynomials 509 PURPOSE: compute the quotient q and remainder r s.t . f = g*q + r, deg(r) < deg(g)509 PURPOSE: compute the quotient q and remainder r s.th. f = g*q + r, deg(r) < deg(g) 510 510 RETURN: list of polynomials 511 511 @format … … 586 586 "USAGE: EGCD(f, g); where f,g are polynomials 587 587 PURPOSE: compute the polynomial gcd of f and g over Q(a)[x] 588 RETURN: polynomial h s.t . h is a greatest common divisor of f and g (not nec.589 monic)588 RETURN: polynomial h s.th. h is a greatest common divisor of f and g (not 589 necessarily monic) 590 590 ASSUME: basering = Q(a)[t] 591 591 EXAMPLE: example EGCD; shows an example … … 719 719 @end format 720 720 ASSUME: f must be squarefree, basering = Q[x,a] and ideal mpoly is equal to 721 'minpoly', this represents the ring Q(a)[x] together with 'minpoly'.721 'minpoly', this represents the ring Q(a)[x] together with 'minpoly'. 722 722 NOTE: the norm is an element of Q[x] 723 723 EXAMPLE: example SqfrNorm; shows an example
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