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JOURNALS // Sibirskii Matematicheskii Zhurnal // Archive

Sibirsk. Mat. Zh., 2023 Volume 64, Number 3, Pages 562–578 (Mi smj7781)

Degenerate multilinear forms and Hermitian and para-Hermitian structures

E. S. Kornev

Kemerovo State University

Abstract: We describe some method for obtaining families of complex and paracomplex structures on real manifolds by using degenerate skew-symmetric multilinear forms. To construct these structures, we employ a skew-symmetric form with nontrivial radical and obtain a family of almost complex structures on the six-dimensional sphere different from the Cayley structure and families of Hermitian and para-Hermitian structures on some six-dimensional manifolds.

Keywords: Hermitian structure, para-Hermitian structure, integrable almost complex structure, radical of a multilinear form.

UDC: 514.763

MSC: 35R30

Received: 21.08.2022
Revised: 11.03.2023
Accepted: 06.04.2023

DOI: 10.33048/smzh.2023.64.309


 English version:
Siberian Mathematical Journal, 2023, 64:3, 611–623


© Steklov Math. Inst. of RAS, 2026