Lifting problem for universal quadratic forms

There are no universal ternary quadratic forms over biquadratic fields

(2020) Jakub Krásenský et al.   PROCEEDINGS OF THE EDINBURGH MATHEMATICAL SOCIETY

A lower bound for the rank of a universal quadratic form with integer coefficients in a totally real number field

(2019) Pavlo Yatsyna   COMMENTARII MATHEMATICI HELVETICI

Indecomposable integers in real quadratic fields

(2019) Magdaléna Tinková et al.   JOURNAL OF NUMBER THEORY

A remark on the number field analogue of Waring's constant g(k)

(2018) Paul Pollack   MATHEMATISCHE NACHRICHTEN

On a Waring’s problem for integral quadratic and Hermitian forms

(2018) Constantin N. Beli et al.   TRANSACTIONS OF THE AMERICAN MATHEMATICAL SOCIETY

Universal quadratic forms and indecomposables over biquadratic fields

(2018) Martin Čech et al.   MATHEMATISCHE NACHRICHTEN

Universal quadratic forms over multiquadratic fields

(2017) Vítězslav Kala et al.   RAMANUJAN JOURNAL

UNIVERSAL QUADRATIC FORMS AND ELEMENTS OF SMALL NORM IN REAL QUADRATIC FIELDS

(2016) VÍTĚZSLAV KALA   BULLETIN OF THE AUSTRALIAN MATHEMATICAL SOCIETY

Norms of indecomposable integers in real quadratic fields

(2016) Vítězslav Kala   JOURNAL OF NUMBER THEORY

A refinement of the Dress–Scharlau theorem

(2016) Se Wook Jang et al.   JOURNAL OF NUMBER THEORY

Binary quadratic forms represented by a sum of nonzero squares

(2015) Yun-Seong Ji et al.   JOURNAL OF NUMBER THEORY

Number fields without n-ary universal quadratic forms

(2015) VALENTIN BLOMER et al.   MATHEMATICAL PROCEEDINGS OF THE CAMBRIDGE PHILOSOPHICAL SOCIETY

A database of number fields

(2014) John W. Jones et al.   LMS Journal of Computation and Mathematics

One-class genera of maximal integral quadratic forms

(2013) Markus Kirschmer   JOURNAL OF NUMBER THEORY

Universality of a non-classical integral quadratic form over Q ( \sqrt 5 )

(2009) Jesse Ira Deutsch   ACTA ARITHMETICA

Positive definite almost regular ternary quadratic forms over totally real number fields

(2008) Wai Kiu Chan et al.   BULLETIN OF THE LONDON MATHEMATICAL SOCIETY

Universal forms over $\mathbb{Q}(\sqrt{5})$

(2008) Young Min Lee   RAMANUJAN JOURNAL