3 citations · 7 across the 6 of their papers we have counts for
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math.FA2015
Complex Odd-Dimensional Endomorphism and Topological Degree
Jon A. Sjogren
A linear mapping upon real n-dimensional space, where the dimension n is odd, has a real eigenvalue-eigenvector pair. The corresponding statement for complex vector spaces holds tr…
math.CV2015★ 1 cited
Polynomial Roots and Open Mappings
Jon A. Sjogren
The "openness" of a complex polynomial mapping is discussed and applied to the Fundamental Theorem of Algebra. In this category fall proofs of S. Wolfenstein, R.L. Thompson, J. Mil…
math.GT2015★ 3 cited
Real Polynomial Rings and Domain Invariance
Jon A. Sjogren
Recent proofs of classical theorems in polynomial algebra and functional analysis are discussed, which use tools from the topology of real manifolds. Simpler proofs were discovered…