# Quadratic equation

## Papers overview

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Highly Cited

2018

Highly Cited

2018

- IEEE Transactions on Information Theory
- 2018

This paper presents a new algorithm, termed <italic>truncated amplitude flow</italic> (TAF), to recover an unknown vector <inline… (More)

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Highly Cited

2014

Highly Cited

2014

- Foundations of Computational Mathematics
- 2014

This note shows that we can recover any complex vector x0 ∈ C exactly from on the order of n quadratic equations of the form |〈ai… (More)

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Highly Cited

2013

Highly Cited

2013

- SIAM J. Math. Analysis
- 2013

In this paper we consider a system of quadratic equations |〈zj ,x〉|2 = bj , j = 1, ...,m, where x ∈ R is unknown while normal… (More)

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Highly Cited

2006

Highly Cited

2006

- 2006

Using the fixed point alternative theorem we establish the orthogonal stability of quadratic functional equation of Pexider type… (More)

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Highly Cited

2002

Highly Cited

2002

- Math. Program.
- 2002

UOBYQA is a new algorithm for general unconstrained optimization calculations, that takes account of the curvature of the… (More)

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2002

2002

- Public Key Cryptography
- 2002

The security of several recent digital signature schemes is based on the difficulty of solving large systems of quadratic… (More)

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Highly Cited

1999

Highly Cited

1999

- 1999

This article theoretically explores the characteristics underpinning quadratic term structure models (QTSMs), which designate the… (More)

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Highly Cited

1998

Highly Cited

1998

- 1998

The object of this paper (which consists of two parts) is to describe irreducible varieties over free groups and to characterize… (More)

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Highly Cited

1997

Highly Cited

1997

- Applicable Algebra in Engineering, Communication…
- 1997

We present a new, “elementary” quantifier elimination method for various special cases of the general quantifier elimination… (More)

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Highly Cited

1991

Highly Cited

1991

- J. Global Optimization
- 1991

We show that the problem of minimizing a concave quadratic function with one concave direction is NP-hard. This result can be… (More)

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