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"Wilkinson"
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THE TWO-DIMENSIONAL KPZ EQUATION IN THE ENTIRE SUBCRITICAL REGIME
We consider the KPZ equation in space dimension 2 driven by spacetime white noise. We showed in previous work that if the noise is mollified in space on scale ε and its strength is scaled as β̂/√|log ε|, then a transition occurs with explicit critical point β̂c = √2π. Recently Chatterjee and Dunlap showed that the solution admits subsequential scaling limits as ε ↓ 0, for sufficiently small β̂. We prove here that the limit exists in the entire subcritical regime β̂ ∈ (0, β̂c) and we identify it as the solution of an additive stochastic heat equation, establishing so-called Edwards–Wilkinson fluctuations. The same result holds for the directed polymer model in random environment in space dimension 2.
Journal Article
Red Ellen : the life of Ellen Wilkinson socialist, feminist, internationalist
In 1908 Ellen Wilkinson, a fiery adolescent from a working-class family in Manchester, was \"the only girl who talks in school debates.\" By midcentury, Wilkinson had helped found Britain's Communist Party, earned a seat in Parliament, and become a renowned advocate for the poor and dispossessed at home and abroad. She was one of the first female delegates to the United Nations, and she played a central role in Britain's postwar Labour government. In Laura Beers's account of Wilkinson's remarkable life, we have a richly detailed portrait of a time when Left-leaning British men and women from a range of backgrounds sought to reshape domestic, imperial, and international affairs. Wilkinson is best remembered as the leader of the Jarrow Crusade, the 300-mile march of two hundred unemployed shipwrights and steel workers to petition the British government for assistance. But this was just one small part of Red Ellen's larger transnational fight for social justice. She was involved in a range of campaigns, from the quest for official recognition of the Spanish Republican government, to the fight for Indian independence, to the effort to smuggle Jewish refugees out of Germany. During Wilkinson's lifetime, many British radicals viewed themselves as members of an international socialist community, and some, like her, became involved in socialist, feminist, and pacifist movements that spanned the globe. By focusing on the extent to which Wilkinson's activism transcended Britain's borders, Red Ellen adjusts our perception of the British Left in the early twentieth century.-- Provided by publisher
Book
The Tightrope Walker
Anne Wilkinson (1910-61) was one of the most celebrated Canadian writers of her time. Her success as a poet came against all odds: nothing in her background, from geography to genealogy, would have suggested a literary career. She lived her life and practiced her art in Toronto at a time when the nerve centre of Canadian poetry was unquestionably Montreal. She was born into the highest levels of Toronto society, a daughter of the very distinguished Osler family. And yet she wrote poetry, and was published to great acclaim, through decades of marriage, child-rearing, divorce, and illness.
From December 1947 to July 1956, the years during which she wrote her most successful poetry, Wilkinson kept journals; in due course she also wrote an autobiography, part of which appeared in a literary magazine shortly after she died. Joan Coldwell brings together the complete text of the autobiography with the poet?s journals, some samples of her poetry, and a moving exchange of letters between Wilkinson and her mother.
The journals vividly reveal the inner workings of the writer?s mind and her struggles to create in a difficult environment. With an immediacy and power that only journals can achieve, these writings explore the nature of the creative process in a context of daily realities that are often harsh and sometimes heart-breaking. The autobiography tells the story in a different way, rearranged to fit the forms of a ?legitimate? genre.
Together with Coldwell?s introduction, these writings present a unique and moving self-portrait of a poet who died too young, at the peak of her career. This volume celebrates Wilkinson?s life and work, and the spirit that informed them.
eBook
Damn near white : an African American family's rise from slavery to bittersweet success
\"Carolyn Wilkins grew up defending her racial identity. Because of her light complexion and wavy hair, she spent years struggling to convince others she was black. Her family's prominence set Carolyn's experiences even further apart from those of the average African American...Carolyn's parents insisted she follow the color-conscious rituals of Chicago's elite black bourgeoisie--experiences Carolyn recalls as some of the most miserable of her entire life. Only in the company of her mischievous Aunt Marjory...does Carolyn feel a true connection to her family's African American heritage. When Aunt Marjory passes away, Carolyn inherits ten bulging scrapbooks filled with family history and memories. What she finds...inspires her to discover the truth about her ancestors--a quest that will eventually involve years of research, thousands of miles of travel, and much soul-searching...\"--Dust jacket.
Book
Challenges for Kinetics Predictions via Neural Network Potentials: A Wilkinson’s Catalyst Case
Ab initio kinetic studies are important to understand and design novel chemical reactions. While the Artificial Force Induced Reaction (AFIR) method provides a convenient and efficient framework for kinetic studies, accurate explorations of reaction path networks incur high computational costs. In this article, we are investigating the applicability of Neural Network Potentials (NNP) to accelerate such studies. For this purpose, we are reporting a novel theoretical study of ethylene hydrogenation with a transition metal complex inspired by Wilkinson’s catalyst, using the AFIR method. The resulting reaction path network was analyzed by the Generative Topographic Mapping method. The network’s geometries were then used to train a state-of-the-art NNP model, to replace expensive ab initio calculations with fast NNP predictions during the search. This procedure was applied to run the first NNP-powered reaction path network exploration using the AFIR method. We discovered that such explorations are particularly challenging for general purpose NNP models, and we identified the underlying limitations. In addition, we are proposing to overcome these challenges by complementing NNP models with fast semiempirical predictions. The proposed solution offers a generally applicable framework, laying the foundations to further accelerate ab initio kinetic studies with Machine Learning Force Fields, and ultimately explore larger systems that are currently inaccessible.
Journal Article