Results 31 to 40 of about 2,231 (145)
Idempotents in group rings [PDF]
, 1971 In this note we offer an elementary entirely self-contained proof of a theorem of Kaplansky on idempotents in complex group rings.
D. S. Passman
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Invariant Subspaces of Idempotents on Hilbert Spaces [PDF]
, 2022 In the setting of operators on Hilbert spaces, we prove that every quasinilpotent operator has a non−trivial closed invariant subspace if and only if every pair of idempotents with a quasinilpotent commutator has a non−trivial common closed ...
Sarkar, Jaydeb +2 more
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Semigroups of order-decreasing transformations [PDF]
, 2012 Let X be a totally ordered set and consider the semigroups of orderdecreasing (increasing) full (partial, partial one-to-one) transformations of X. In this Thesis the study of order-increasing full (partial, partial one-to-one) transformations has been
Umar, Abdullahi
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CoRR, 2023 We propose a new approach for generative modeling based on training a neural network to be idempotent. An idempotent operator is one that can be applied sequentially without changing the result beyond the initial application, namely $f(f(z))=f(z)$.
Assaf Shocher +5 more
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Unbounded nilpotents and idempotents [PDF]
, 1988 This paper is concerned with unbounded operators in Hilbert space with domain containing their range and, in particular, investigates unbounded nilpotents and ...
Schôichi, Ôta
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Beyond Regular Semigroups [PDF]
, 2012 The topic of this thesis is the class of weakly U-abundant semigroups. This class is very wide, containing inverse, orthodox, regular, ample, adequate, quasi-adequate, concordant, abundant, restriction, Ehresmann and weakly abundant semigroups.
Wang, Yanhui
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Lifting to non-integral idempotents [PDF]
, 2001 In the first section of this paper, we illustrate (for a finite group G and the field of fractions K of a suitable complete dvr R) how to produce all central idempotents of Z(KG) from knowledge of the images of Z(RG) modulo certain powers of J(R). In the
Robinson, Geoffrey R. +2 more
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On maps sending rank-κ idempotents to idempotents
Operators and Matrices, 2019 Summary: We characterize bijective linear maps on complex-valued \(n\times n\) matrices such that rank-\( \kappa\) idempotents are mapped to idempotents, where \(2 \leqslant \kappa < n - 1\).
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The decomposition of idempotents associated with inflators [PDF]
, 1987 In a recent paper, Friedland, Hershkowitz, and Schneider introduced a new matrix product called the inflation product and a new class of matrices called inflators.
Stuart, Jeffrey L.
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Characterizations and representations of the group inverse involving idempotents [PDF]
, 2011 This paper is to present some results on the group invertibility of products and differences of idempotents. In addition, some formulae for the group inverse of sums, differences and products of idempotents are established by using some given ...
Deng, Chun Yuan, Chun Yuan Deng
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