# A Positive Definite Binary Quadratic Form as a Sum of Five Squares of Linear Forms (Completion of Mordell's Proof)

Bulletin of the Polish Academy of Sciences. Mathematics (2013)

- Volume: 61, Issue: 1, page 23-26
- ISSN: 0239-7269

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topA. Schinzel. "A Positive Definite Binary Quadratic Form as a Sum of Five Squares of Linear Forms (Completion of Mordell's Proof)." Bulletin of the Polish Academy of Sciences. Mathematics 61.1 (2013): 23-26. <http://eudml.org/doc/281208>.

@article{A2013,

abstract = {The paper completes an incomplete proof given by L. J. Mordell in 1930 of the following theorem: every positive definite classical binary quadratic form is the sum of five squares of linear forms with integral coefficients.},

author = {A. Schinzel},

journal = {Bulletin of the Polish Academy of Sciences. Mathematics},

language = {eng},

number = {1},

pages = {23-26},

title = {A Positive Definite Binary Quadratic Form as a Sum of Five Squares of Linear Forms (Completion of Mordell's Proof)},

url = {http://eudml.org/doc/281208},

volume = {61},

year = {2013},

}

TY - JOUR

AU - A. Schinzel

TI - A Positive Definite Binary Quadratic Form as a Sum of Five Squares of Linear Forms (Completion of Mordell's Proof)

JO - Bulletin of the Polish Academy of Sciences. Mathematics

PY - 2013

VL - 61

IS - 1

SP - 23

EP - 26

AB - The paper completes an incomplete proof given by L. J. Mordell in 1930 of the following theorem: every positive definite classical binary quadratic form is the sum of five squares of linear forms with integral coefficients.

LA - eng

UR - http://eudml.org/doc/281208

ER -

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