Results 261 to 270 of about 579,977 (276)
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Bulletin of the London Mathematical Society, 1985
In this survey article the author tries to introduce the reader to some open questions about Cartan invariants of finite groups of Lie type in the describing characteristic. He explains the relevant notions and results as completely as possible. In the appendix he states all the known results on the Cartan invariants of the groups of Lie type with ...
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In this survey article the author tries to introduce the reader to some open questions about Cartan invariants of finite groups of Lie type in the describing characteristic. He explains the relevant notions and results as completely as possible. In the appendix he states all the known results on the Cartan invariants of the groups of Lie type with ...
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The International Journal of Robotics Research, 2010
This paper introduces a principle to guide the design of finger form: invariance of contact geometry over some continuum of varying shape and/or pose of the grasped object in the plane. Specific applications of this principle include scale-invariant and pose-invariant grasps. Under specific conditions, the principle gives rise to spiral shaped fingers,
Rodriguez, Alberto, Mason, Matthew T.
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This paper introduces a principle to guide the design of finger form: invariance of contact geometry over some continuum of varying shape and/or pose of the grasped object in the plane. Specific applications of this principle include scale-invariant and pose-invariant grasps. Under specific conditions, the principle gives rise to spiral shaped fingers,
Rodriguez, Alberto, Mason, Matthew T.
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Canadian Journal of Mathematics, 1978
There have been few published results concerning the relationship between the homology groups of branched and unbranched covering spaces of knots, despite the fact that these invariants are such powerful invariants for distinguishing knot types and have long been recognised as such [8]. It is well
Hartley, Richard, Murasugi, Kunio
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There have been few published results concerning the relationship between the homology groups of branched and unbranched covering spaces of knots, despite the fact that these invariants are such powerful invariants for distinguishing knot types and have long been recognised as such [8]. It is well
Hartley, Richard, Murasugi, Kunio
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Mathematica Applicanda, 1981
Let A be a nonexpansive mapping acting in the normed space E and let \(M\subset E\) be an invariant set for A. Assume \(a\in E\) is a fixed point for A. If the restriction of A to M is compact then the set of elements of best approximation of a in M is nonempty.
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Let A be a nonexpansive mapping acting in the normed space E and let \(M\subset E\) be an invariant set for A. Assume \(a\in E\) is a fixed point for A. If the restriction of A to M is compact then the set of elements of best approximation of a in M is nonempty.
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Computational Mechanics, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
BOTTASSO, CARLO LUIGI +2 more
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zbMATH Open Web Interface contents unavailable due to conflicting licenses.
BOTTASSO, CARLO LUIGI +2 more
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Formal Aspects of Computing, 2002
Abstract. A local invariant is a set of states of a transition system with the property that every action possible from each of its states takes the system back into the local invariant, unless it is an ‘exit’ action, each of which is accessible from every state in the set via a sequence of non-‘exit’ actions.
Pitt, David H., Shields, Michael
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Abstract. A local invariant is a set of states of a transition system with the property that every action possible from each of its states takes the system back into the local invariant, unless it is an ‘exit’ action, each of which is accessible from every state in the set via a sequence of non-‘exit’ actions.
Pitt, David H., Shields, Michael
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MLQ, 2002
In a previous paper, the author analyzed the groups of automorphisms of various lattices of modal logics. In this paper he goes on with the study of the structure of the group of automorphisms of the lattice NExtK (the distributive lattice of normal logics). In this way, he studies logics which are invariant under all automorphisms in the group.
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In a previous paper, the author analyzed the groups of automorphisms of various lattices of modal logics. In this paper he goes on with the study of the structure of the group of automorphisms of the lattice NExtK (the distributive lattice of normal logics). In this way, he studies logics which are invariant under all automorphisms in the group.
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1984
Let \(R=k[x_ 1,...,x_ n]\) be the polynomial ring over a field k. The classical invariant theory considers the ring \(R^ G\) of fixed elements of G where G is an automorphism group of R. Now let \(S=k[x_ 1,x_ 1^{-1},...,x_ n,x_ n^{-1}]\) be the ring of ''Laurent's'' polynomials that is polynomials of the form \(\sum\alpha_{i_ 1...i_ n}x^{i_ 1}...x^{i_ ...
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Let \(R=k[x_ 1,...,x_ n]\) be the polynomial ring over a field k. The classical invariant theory considers the ring \(R^ G\) of fixed elements of G where G is an automorphism group of R. Now let \(S=k[x_ 1,x_ 1^{-1},...,x_ n,x_ n^{-1}]\) be the ring of ''Laurent's'' polynomials that is polynomials of the form \(\sum\alpha_{i_ 1...i_ n}x^{i_ 1}...x^{i_ ...
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Proceedings of the 19th Annual IEEE Symposium on Logic in Computer Science, 2004., 2004
Podelski, A., Rybalchenko, A.
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Podelski, A., Rybalchenko, A.
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