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pro vyhledávání: '"Axel Boldt"'
Autor:
Martha Takane, Axel Boldt
Publikováno v:
Journal of Pure and Applied Algebra. 133(1-2):39-49
We study the spectral classes of a finite, connected graph without loops and with exactly one “essential” cycle. A spectral class consists of all those orientations of the graph that do not contain oriented cycles and yield the same Coxeter polyn
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https://explore.openaire.eu/search/publication?articleId=doi_dedup___::75e905dc057fc153bf935bf394efa47c
Autor:
Axel Boldt
Publikováno v:
Linear Algebra and its Applications. 230:151-164
A reduction formula for the characteristic polynomials of the Coxeter matrices of certain split finite-dimensional algebras is proved. In the hereditary case, this yields explicit expressions for the Coxeter polynomials of large families of quivers.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0d63ba0a03e846a9d296f14249fdd8e4
https://doi.org/10.1016/0024-3795(94)00004-w
https://doi.org/10.1016/0024-3795(94)00004-w
Autor:
Craig Calcaterra, Axel Boldt
A generalization of the Flow-box Theorem is given. The assumption of continuous differentiability of the vector field is relaxed to a local Lipschitz condition. The theorem holds in any Banach space.
Comment: 9 pages; replacement with explanator
Comment: 9 pages; replacement with explanator
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a1cee12461b9dbe08d4251e72938f901
Autor:
Axel Boldt, Ahmad Mojiri
Publikováno v:
Journal of Algebra. (5):1825-1850
This article begins the study of irreducible maps involving finite-dimensional uniserial modules over finite-dimensional associative algebras. We work on the classification of irreducible maps between two uniserials over triangular algebras, and give
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::59cfd8f26b7d9897228d447e451572f8