Search Results - "Rojas, J. Maurice"

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  1. 1

    Counting Real Roots in Polynomial-Time via Diophantine Approximation by Rojas, J. Maurice

    Published in Foundations of computational mathematics (01-04-2024)
    “…Suppose A = { a 1 , … , a n + 2 } ⊂ Z n has cardinality n + 2 , with all the coordinates of the a j having absolute value at most d , and the a j do not all…”
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    Journal Article
  2. 2

    Practical conversion from torsion space to Cartesian space for in silico protein synthesis by Parsons, Jerod, Holmes, J. Bradley, Rojas, J. Maurice, Tsai, Jerry, Strauss, Charlie E. M.

    Published in Journal of computational chemistry (30-07-2005)
    “…Many applications require a method for translating a large list of bond angles and bond lengths to precise atomic Cartesian coordinates. This simple but…”
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    Journal Article
  3. 3

    Computing zeta functions of large polynomial systems over finite fields by Cheng, Qi, Maurice Rojas, J., Wan, Daqing

    Published in Journal of Complexity (01-12-2022)
    “…We improve the algorithms of Lauder-Wan [11] and Harvey [8] to compute the zeta function of a system of m polynomial equations in n variables, over the q…”
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    Journal Article
  4. 4

    Optimizing n-variate (n+k)-nomials for small k by Pébay, Philippe, Maurice Rojas, J., Thompson, David C.

    Published in Theoretical computer science (01-04-2011)
    “…We give a high precision polynomial-time approximation scheme for the supremum of any honest n-variate (n+2)-nomial with a constant term, allowing real…”
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    Journal Article
  5. 5

    Correction to: Tropical varieties for exponential sums by Ergür, Alperen A., Paouris, Grigoris, Rojas, J. Maurice

    Published in Mathematische annalen (2021)
    “…A correction to this paper has been published: https ://doi.org/10.1007/s00208-019-01808-5 A subsidiary result (Theorem 1.1, on the undecidability of…”
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    Journal Article
  6. 6

    Probabilistic Condition Number Estimates for Real Polynomial Systems I: A Broader Family of Distributions by Ergür, Alperen A., Paouris, Grigoris, Rojas, J. Maurice

    Published in Foundations of computational mathematics (01-02-2019)
    “…We consider the sensitivity of real roots of polynomial systems with respect to perturbations of the coefficients. In particular—for a version of the condition…”
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    Journal Article
  7. 7

    Tropical varieties for exponential sums by Ergür, Alperen A., Paouris, Grigoris, Rojas, J. Maurice

    Published in Mathematische annalen (01-08-2020)
    “…We study the complexity of approximating complex zero sets of certain n -variate exponential sums. We show that the real part, R , of such a zero set can be…”
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    Journal Article
  8. 8

    Sparse univariate polynomials with many roots over finite fields by Cheng, Qi, Gao, Shuhong, Maurice Rojas, J., Wan, Daqing

    Published in Finite fields and their applications (01-07-2017)
    “…Suppose q is a prime power and f∈Fq[x] is a univariate polynomial with exactly t monomial terms and degree <q−1. To establish a finite field analogue of…”
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    Journal Article
  9. 9

    Counting Real Connected Components of Trinomial Curve Intersections and m -nomial Hypersurfaces by Li, Tien-Yien, Rojas, J. Maurice, Wang, Xiaoshen

    Published in Discrete & computational geometry (01-09-2003)
    “…We prove that any pair of bivariate trinomials has at most five isolated roots in the positive quadrant. The best previous upper bounds independent of the…”
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    Journal Article
  10. 10

    Root repulsion and faster solving for very sparse polynomials over p-adic fields by Rojas, J. Maurice, Zhu, Yuyu

    Published in Journal of number theory (01-12-2022)
    “…For any fixed field K∈{Q2,Q3,Q5,…}, we prove that all univariate polynomials f with exactly 3 (resp. 2) monomial terms, degree d, and all coefficients in…”
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    Journal Article
  11. 11

    Tropical Varieties for Exponential Sums by Ergür, Alperen, Paouris, Grigoris, Rojas, J. Maurice

    Published 21-04-2021
    “…Mathematische Annalen, Vol. 377, pp. 863-882 (2020) We study the complexity of approximating complex zero sets of certain $n$-variate exponential sums. We show…”
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    Journal Article
  12. 12

    Arithmetic Multivariate Descartes' Rule by Rojas, J. Maurice

    Published in American journal of mathematics (01-02-2004)
    “…Let L be any number field or p-adic field and consider F:=(f1,...,fk) where f1,...,fk ΕL[x1, . . . ,xn] and no more than µ, distinct exponent vectors occur in…”
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    Journal Article
  13. 13

    Counting Roots of Polynomials Over Prime Power Rings by Cheng, Qi, Gao, Shuhong, Rojas, J. Maurice, Wan, Daqing

    Published 03-11-2017
    “…Open Book Series 2 (2019) 191-205 Suppose $p$ is a prime, $t$ is a positive integer, and $f\!\in\!\mathbb{Z}[x]$ is a univariate polynomial of degree $d$ with…”
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    Journal Article
  14. 14

    Probabilistic Condition Number Estimates For Real Polynomial Systems I: A Broader Family Of Distributions by Ergür, Alperen A, Rojas, J. Maurice, Paouris, Grigoris

    Published 05-06-2017
    “…FOCM 2018 We consider the sensitivity of real roots of polynomial systems with respect to perturbations of the coefficients. In particular - for a version of…”
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    Journal Article
  15. 15

    On the BCSS Proof of the Fundamental Theorem of Algebra by Rojas, J. Maurice

    Published 17-06-2024
    “…Section 10.4 of the 1998 Springer-Verlag book {\em Complexity and Real Computation}, by Blum, Cucker, Shub, and Smale, contains a particularly elegant proof of…”
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    Journal Article
  16. 16

    On the complexity of diophantine geometry in low dimensions by Rojas, J.M.

    “…We consider the average-case complexity of some otherwise undecidable or open Diophantine problems. More precisely, we show that the following two problems can…”
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    Conference Proceeding Journal Article
  17. 17

    Counting Real Roots in Polynomial-Time for Systems Supported on Circuits by Rojas, J. Maurice

    Published 09-12-2020
    “…Suppose $A=\{a_1,\ldots,a_{n+2}\}\subset\mathbb{Z}^n$ has cardinality $n+2$, with all the coordinates of the $a_j$ having absolute value at most $d$, and the…”
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    Journal Article
  18. 18
  19. 19

    Faster p-adic feasibility for certain multivariate sparse polynomials by Avendaño, Martín, Ibrahim, Ashraf, Rojas, J. Maurice, Rusek, Korben

    Published in Journal of symbolic computation (01-04-2012)
    “…We present algorithms revealing new families of polynomials admitting sub-exponential detection of p-adic rational roots, relative to the sparse encoding. For…”
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    Journal Article
  20. 20

    Root Repulsion and Faster Solving for Very Sparse Polynomials Over $p$-adic Fields by Rojas, J. Maurice, Zhu, Yuyu

    Published 19-07-2021
    “…For any fixed field $K\!\in\!\{\mathbb{Q}_2,\mathbb{Q}_3,\mathbb{Q}_5, \ldots\}$, we prove that all polynomials $f\!\in\!\mathbb{Z}[x]$ with exactly $3$ (resp…”
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    Journal Article