Results 31 to 40 of about 178,487 (106)
Linear Algebra and its Applications, 2009 AbstractLet (H,J) be a Krein space with selfadjoint involution J. Starting with a canonical representation of a J-selfadjoint projection, J-projection in short, as the sum of a J-positive projection and a J-negative one we study in detail the structure of a regular subspace, that is, the range of a J-projection. We treat the problem when the sum of two
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Colouring lines in projective space
Journal of Combinatorial Theory, Series A, 2006 19 pages; to appear in J.
Chowdhury, Ameera +2 more
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The block structure spaces of real projective spaces and orthogonal calculus of functors
, 2006 Given a compact manifold X, the set of simple manifold structures on X x \Delta^k relative to the boundary can be viewed as the k-th homotopy group of a space \S^s (X). This space is called the block structure space of X.
Macko, Tibor
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Monomial Transformations of the Projective Space [PDF]
, 2014 We prove that, over any field, the dimension of the indeterminacy locus of a rational transformation $f$ of $P^n$ which is defined by monomials of the same degree $d$ with no common factors is at least $(n-2)/2$, provided that the degree of $f$ as a map is not divisible by $d$. This implies upper bounds on the multidegree of $f$.
Debarre, Olivier, Lass, Bodo
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Projective Space: Harmonicity and Projectivity
, 2016 For an axiomatization of three-dimensional projective space based on points and planes, we discuss appropriate versions of the harmonicity axiom and the projectivity axiom, showing that each axiom is equivalent to its spatial dual.
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Projective Space: Reguli and Projectivity
, 2015 We investigate an `assumption of projectivity' that is appropriate to the self-dual axiomatic formulation of three-dimensional projective space.
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ON PROJECTIONS IN PROJECTIVE SPACES
Demonstratio Mathematica, 1998 Krzysztof Prażmowski, H. Oryszczyn
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Projective embedding of projective spaces [PDF]
Bulletin of the Belgian Mathematical Society - Simon Stevin, 1998 openaire +2 more sources
Immersions of real projective spaces into complex projective spaces [PDF]
Hiroshima Mathematical Journal, 1987 openaire +2 more sources
On the level of projective spaces
Commentarii Mathematici Helvetici, 1987 PFISTER, A., Stolz, S.
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