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Description:: Finite-dimensional diffusions have been successfully used as tractable approximations to gaininsight into a large class of queueing systems. We show that certain classes of queueingsystems lead naturally to infinite-dimensional diffusion approximations. For the particular model of many-server queues, we show that the limit state processconverges...
Creator:: Ramanan, Kavita (Brown University)
Created:: 2013-01-17
Contributed By:: University of Minnesota, Institute for Mathematics and its Applications.
Last Updated:: 2018-06-19

Description:: Two approaches to characterizing reflected diffusions include the submartingale problem formulation or a formulation in terms of the Skorokhod problem and stochastic differential equations. We introduce these formulations for a large class of piecewise smooth domains and, under suitable assumptions, we show that well-posedness of the submartinga...
Creator:: Ramanan, Kavita (Brown University)
Created:: 2015-06-25
Contributed By:: University of Minnesota, Institute for Mathematics and its Applications.
Last Updated:: 2018-06-19

Description:: Reflected or constrained diffusions in convex polyhedral domains arise in a variety of disciplines, including as approximations of queueing and chemical reaction networks, interacting particle systems, Leontief systems in economics, and in the study of Atlas models in math finance. We establish pathwise differentiability of a large class of obli...
Creator:: Ramanan, Kavita (Brown University)
Created:: 2018-05-16
Contributed By:: University of Minnesota, Institute for Mathematics and its Applications.
Last Updated:: 2019-02-04

Description:: The nonlinear and stochastic dynamics of oscillating microcantilevers in the Atomic Force Microscope (AFM) are closely linked to the microscope's stability, resolution, minimum force detection, and the ability to generate material contrast. The bifurcations, stability, higher harmonics, and chaotic dynamics mechanisms are now well understood for...
Creator:: Raman, Arvind (Purdue University)
Created:: 2016-04-15
Contributed By:: University of Minnesota, Institute for Mathematics and its Applications.
Last Updated:: 2018-06-19

Description:: The Milnor conjectures relating the graded Witt ring and the mod-2 Galois cohomology ring of a field have been a driving force in the algebraic theory of quadratic forms. The degree 2 norm residue isomorphism, due to Merkurjev, established the first case of the Milnor conjectures and ushered in a new era in the theory of quadratic forms. We shal...
Creator:: Raman, Parimala (Emory University)
Created:: 2012-02-01
Contributed By:: University of Minnesota, Institute for Mathematics and its Applications.
Last Updated:: 2018-06-19

Description:: Biologically active fluids, such as bacterial suspensions orcytoskeletal extracts with molecular motors and ATP, are a source ofintriguing problems in the physics of complex fluids. They are composedof particles that with internal machinery that take up energy from theirsurroundings and actively move the surrounding medium. My talk willreview re...
Creator:: Ramaswamy, Sriram (Indian Institute of Science)
Created:: 2009-09-16
Contributed By:: University of Minnesota, Institute for Mathematics and its Applications.
Last Updated:: 2018-06-19

Kevin Ramirez

Description:: Kevin Rameriz was born in Saint Paul, Minnesota in 1999. His father immigrated to the United States from Honduras and his mother immigrated from Colombia. Kevin works with his father at his father's company
Creator:: Rameriz, Kevin
Created:: 2017-05-28
Contributed By:: University of Minnesota, Immigration History Research Center
Last Updated:: 2021-01-26

Description:: On Tuesday, September 20, 2011, Dr. Sonia Cancian, a Montreal-based scholar affiliated with the IHRC "Digitizing Immigrant Letters" project interviewed Ms. Antonietta Petris at her home in St. Leonard (Montreal) about letters exchanged between Ms. Petris and Mr. Loris Palma of Venice, Italy, during the fall of 1948, shortly after Ms. Petris' arr...
Creator:: Ramirez, Bruno
Contributor:: Cancian, Sonia; Petris, Antonietta
Created:: 2011-09-20
Contributed By:: University of Minnesota Libraries, Immigration History Research Center Archives.
Last Updated:: 2018-02-05

Description:: Antonio Gutierrez was born in La manzanilla Jalisco,Mexico on January 17,1951. At the age of 16 he was forced to immigrate to Californa. There he met and fell in love with Anna Wildman. This story was created by Emily Ramirez, a student at Berkeley City College.
Creator:: Ramirez, Emily
Created:: 2017-12-12
Contributed By:: University of Minnesota, Immigration History Research Center
Last Updated:: 2021-01-26