Search Results - complexity. 68W30 Symbolic computation and algebraic computation
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Decision problem for a class of univariate Pfaffian functions
ISSN: 0938-1279, 1432-0622Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.03.2024Published in Applicable algebra in engineering, communication and computing (01.03.2024)“… We present a new symbolic procedure solving this problem with a computable complexity based on the computation of suitable Sturm sequences…”
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2
A quasi-linear irreducibility test in K[[x]][y]
ISSN: 1016-3328, 1420-8954Published: Cham Springer International Publishing 01.06.2022Published in Computational complexity (01.06.2022)“…We provide an irreducibility test in the ring K [ [ x ] ] [ y ] whose complexity is quasi-linear with respect to the discriminant valuation, assuming the input…”
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3
Schur Polynomials Do Not Have Small Formulas If the Determinant does not
ISSN: 1016-3328, 1420-8954Published: Cham Springer International Publishing 01.06.2023Published in Computational complexity (01.06.2023)“…). In recent years, they have also shown up in various incarnations in Computer Science, e.g, quantum computation Hallgren et al. (2000); O'Donnell & Wright (2015…”
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Computing roadmaps in unbounded smooth real algebraic sets II: Algorithm and complexity
ISSN: 0747-7171, 1095-855XPublished: Elsevier Ltd 01.07.2026Published in Journal of symbolic computation (01.07.2026)“…A roadmap for an algebraic set V defined by polynomials with coefficients in the field Q of rational numbers is an algebraic curve contained in V whose intersection with all connected components of V∩Rn is connected…”
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5
Bounds for Polynomials on Algebraic Numbers and Application to Curve Topology
ISSN: 0179-5376, 1432-0444Published: New York Springer US 01.04.2022Published in Discrete & computational geometry (01.04.2022)“… } be the real planar algebraic curve implicitly defined as the vanishing set of P . We give a deterministic algorithm to compute the topology of V R ( P…”
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Using Machine Learning to Improve Cylindrical Algebraic Decomposition
ISSN: 1661-8270, 1661-8289Published: Cham Springer International Publishing 01.12.2019Published in Mathematics in computer science (01.12.2019)“…Cylindrical Algebraic Decomposition (CAD) is a key tool in computational algebraic geometry, best known as a procedure to enable Quantifier Elimination over real-closed fields…”
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Algebraic diagonals and walks: Algorithms, bounds, complexity
ISSN: 0747-7171, 1095-855XPublished: Elsevier Ltd 01.11.2017Published in Journal of symbolic computation (01.11.2017)“… It is classical that in this case DiagF is an algebraic function. We propose an algorithm that computes an annihilating polynomial for DiagF…”
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8
Algorithmic Reduction of Biological Networks with Multiple Time Scales
ISSN: 1661-8270, 1661-8289Published: Cham Springer International Publishing 01.09.2021Published in Mathematics in computer science (01.09.2021)“…We present a symbolic algorithmic approach that allows to compute invariant manifolds and corresponding reduced systems for differential equations modeling biological networks which comprise chemical…”
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Real root finding for low rank linear matrices
ISSN: 0938-1279, 1432-0622Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.03.2020Published in Applicable algebra in engineering, communication and computing (01.03.2020)“… that intersects each connected component of the low rank real algebraic set. The complexity of our algorithm is studied thoroughly…”
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10
Dimension results for extremal-generic polynomial systems over complete toric varieties
ISSN: 0021-8693, 1090-266XPublished: Elsevier Inc 15.05.2024Published in Journal of algebra (15.05.2024)“…We study polynomial systems with prescribed monomial supports in the Cox ring of a toric variety built from a complete polyhedral fan. We present combinatorial…”
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11
A Logic Based Approach to Finding Real Singularities of Implicit Ordinary Differential Equations
ISSN: 1661-8270, 1661-8289Published: Cham Springer International Publishing 01.06.2021Published in Mathematics in computer science (01.06.2021)“…We discuss the effective computation of geometric singularities of implicit ordinary differential equations over the real numbers using methods from logic…”
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12
Computing the equisingularity type of a pseudo-irreducible polynomial
ISSN: 0938-1279, 1432-0622Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.11.2020Published in Applicable algebra in engineering, communication and computing (01.11.2020)“…Germs of plane curve singularities can be classified accordingly to their equisingularity type. For singularities over C , this important data coincides with…”
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13
On the complexity of skew arithmetic
ISSN: 0938-1279, 1432-0622Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.03.2016Published in Applicable algebra in engineering, communication and computing (01.03.2016)“…In this paper, we study the complexity of several basic operations on linear differential operators with polynomial coefficients…”
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14
Cylindrical Algebraic Sub-Decompositions
ISSN: 1661-8270, 1661-8289Published: Basel Springer Basel 01.06.2014Published in Mathematics in computer science (01.06.2014)“…Cylindrical algebraic decompositions (CADs) are a key tool in real algebraic geometry, used primarily for eliminating quantifiers over the reals and studying semi-algebraic sets…”
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15
Linear programming using limited-precision oracles
ISSN: 0025-5610, 1436-4646Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.09.2020Published in Mathematical programming (01.09.2020)“… When analyzing the time complexity of LP algorithms, it is typically either assumed that calculations are performed exactly and bounds are derived on the number of elementary arithmetic operations…”
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16
Deterministic root finding over finite fields using Graeffe transforms
ISSN: 0938-1279, 1432-0622Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.06.2016Published in Applicable algebra in engineering, communication and computing (01.06.2016)“… This algorithm allows for the efficient computation of Graeffe transforms of arbitrary orders…”
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17
On computing absolutely irreducible components of algebraic varieties with parameters
ISSN: 0010-485X, 1436-5057Published: Vienna Springer Vienna 01.08.2010Published in Computing (01.08.2010)“…This paper presents a new algorithm for computing absolutely irreducible components of n -dimensional algebraic varieties defined implicitly by parametric homogeneous polynomial equations…”
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18
Multi-point evaluation in higher dimensions
ISSN: 0938-1279, 1432-0622Published: Berlin/Heidelberg Springer-Verlag 01.01.2013Published in Applicable algebra in engineering, communication and computing (01.01.2013)“… ; one particularly important example is the algebra of truncated power series . Similarly to what is known for multi-point evaluation and interpolation in the univariate case, our algorithms have quasi-linear time complexity…”
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19
Certified simultaneous isotopic approximation of algebraic curves via subdivision
ISSN: 0747-7171Published: Elsevier Ltd 01.11.2025Published in Journal of symbolic computation (01.11.2025)“…We present a certified algorithm based on subdivision for computing an isotopic approximation to any number of algebraic curves in the plane…”
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20
Condition number based complexity estimate for solving polynomial systems
ISSN: 0377-0427, 1879-1778Published: Kidlington Elsevier B.V 15.02.2011Published in Journal of computational and applied mathematics (15.02.2011)“…By modifying and combining algorithms in symbolic and numerical computation, we propose a real-root-counting based method for deciding the feasibility of systems of polynomial equations…”
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