CrossRef Open Access 2025

On isotropy fields of Sjch(18)-torsors

N. Karpenko

Abstrak

It is shown that any 18 18 -dimensional nondegenerate quadratic form of trivial discriminant and Clifford invariant acquires Witt index at least 5 5 over some finite ground field extension of degree not divisible by 2 4 2^4 . On the basis of previous research, a general formula is also established for all possible similar statements for forms of arbitrary dimension.

Penulis (1)

N. Karpenko

Format Sitasi

APA MLA BibTeX

Karpenko, N. (2025). On isotropy fields of Sjch(18)-torsors. https://doi.org/10.1090/spmj/1848

Akses Cepat

PDF tidak tersedia langsung

Cek di sumber asli →

Lihat di Sumber doi.org/10.1090/spmj/1848

Informasi Jurnal

Tahun Terbit: 2025
Bahasa: en
Sumber Database: CrossRef
DOI: 10.1090/spmj/1848
Akses: Open Access ✓