Results 11 to 20 of about 1,099 (125)
Class performance: An empirical case of Chinese service workers in hair salons
Regional Science Policy &Practice, Volume 15, Issue 9, Page 1926-1940, December 2023., 2023 Abstract China's service sector has attracted millions of internal migrants from impoverished rural areas. This research investigates how service work contributes to the reproduction of class inequalities in China through the everyday interactions between service workers and customers.
Wenzhao Chen
wiley +1 more source
Veterinary Dermatology, Volume 34, Issue 6, Page 489-494, December 2023., 2023 Background – Dilute sodium hypochlorite (bleach) baths at 0.005% concentration twice weekly have been shown to markedly reduce the severity of atopic dermatitis in children, yet no tolerability and efficacy data are available for this treatment in dogs.
Frane Banovic +4 more
wiley +1 more source
An elementary proof of Chollet’s permanent conjecture for 4 × 4 real matrices
Special Matrices, 2021 A proof of the statement per(A ∘ B) ≤ per(A)per(B) is given for 4 × 4 positive semidefinite real matrices. The proof uses only elementary linear algebra and a rather lengthy series of simple inequalities.
Hutchinson George
doaj +1 more source
Proof of some properties of transfer using noncommutative determinants [PDF]
, 2018 A transfer is a group homomorphism from a finite group to an abelian quotient group of a subgroup of the group. In this paper, we explain some of the properties of transfers by using noncommutative determinants.
Yamaguchi, Naoya
core +2 more sources
Veterinary Dermatology, Volume 34, Issue 6, Page 543-553, December 2023., 2023 Background – Hymenoptera envenomation with honey bee (Apis mellifera) and paper wasp (Polistes spp.) may cause life‐threatening anaphylaxis in dogs. In human patients, clinical history, intradermal testing (IDT) and measurement of allergen‐specific serological immunoglobulin (Ig)E (sIgE) are used to support a diagnosis of Hymenoptera venom ...
Hilary H. Chan +3 more
wiley +1 more source
A counterexample to the Drury permanent conjecture
Special Matrices, 2017 We offer a counterexample to a conjecture concerning the permanent of positive semidefinite matrices. The counterexample is a 4 × 4 complex correlation matrix.
Hutchinson George
doaj +1 more source
Log and harmonically log-convex functions related to matrix norms
, 2016 In this article, we introduce the concept of harmonically log-convex functions, which seems to be strongly connected to unitarily invariant norms. Then, we prove Hermite-Hadamard inequalities for these functions.
Mohammad Sababheh
semanticscholar +1 more source
On the norms of an r-circulant matrix with the generalized k-Horadam numbers
, 2013 In this paper, we present new upper and lower bounds for the spectral norm of an r-circulant matrix H=Cr(Hk,0,Hk,1,Hk,2,…,Hk,n−1) whose entries are the generalized k-Horadam numbers.
Y. Yazlık, N. Taskara
semanticscholar +1 more source
A note on Bapat's q-permanent conjecture
, 2020 Ravindra Bapat conjectured the q -permanent of a non-diagonal Hermitian positive definite matrix is a strictly increasing (in q ) interpolation between the determinant (q = −1) and the permanent (q = 1).
Lon H. Mitchell
semanticscholar +1 more source
Derivative and higher-order Cauchy integral formula of matrix functions
Open Mathematics, 2021 The derivative of a nn-order matrix function on the complex field is usually defined as a n2{n}^{2}-order matrix, which is not suitable for generalizing Cauchy integral formula of matrix functions to its higher-order derivative form. In this paper, a new
Huang Xiaojie, Liu Zhixiu, Wu Chun
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