相关论文: Sofic groups and convolution operators
A group is sofic when every finite subset can be well approximated in a finite symmetric group. No example of a non-sofic group is known. Higman's group, which is a circular amalgamation of four copies of the Baumslag--Solitar group, is a…
This paper has been withdrawn by the author due to a crucial error in the proof of Theorem 1.
This paper has been withdrawn due to disagreement of suggested results and methods between authors.
This paper has been withdrawn by the author due to the fact that the results were found to be done previously.
This paper was withdrawn by the author.
This paper has been withdrawn due to an incorrect analysis in Section 4.
This paper has been withdrawn by the author, due to errors in Groebner basis calculations in the cases of five and six dimensional groups.
Certain criteria are demonstrated for a spatial derivation of a von Neumann algebra to generate a one-parameter semigroup of endomorphisms of that algebra. These are then used to establish a converse to recent results of Borchers and of…
This paper has been withdrawn due to a crucial theoretical error.
This paper has been withdrawn by the author.
This paper has been withdrawn by the author due to a mistake in the section 4.
This paper has been withdrawn by the author.
This paper has been withdrawn by the author due to unspecified problems.
This paper has been withdrawn by the author due to an erro thereon line -2 of page 4.
This paper has been withdrawn by the author for further modification.
This paper has been withdrawn by the authors. Significantly revised versions of the results of this paper are now available in arXiv:0707.0487v2 and arXiv:0808.3169v1.
This paper has been withdrawn by the author due to the paper does not belong to Condensed Matter field.
This paper has been withdrawn by the author because the conclusions reached in it are incorrect.
We classify the finite primitive permutation groups which have a cyclic subgroup with two orbits. This extends classical topics in permutation group theory, and has arithmetic consequences. By a theorem of C. L. Siegel, affine algebraic…
This paper is withdrawn. See quant-ph/9806031 for a discussion.