LRA Collection:
http://hdl.handle.net/2381/3823
2014-04-20T23:28:06ZThe input-output relationship approach to structural identifiability analysis
http://hdl.handle.net/2381/28585
Title: The input-output relationship approach to structural identifiability analysis
Authors: Bearup, Daniel J.; Evans, Neil D.; Chappell, Michael J.
Abstract: Analysis of the identifiability of a given model system is an essential prerequisite to the determination of model parameters from physical data. However, the tools available for the analysis of non-linear systems can be limited both in applicability and by computational intractability for any but the simplest of models. The input-output relation of a model summarises the input-output structure of the whole system and as such provides the potential for an alternative approach to this analysis. However for this approach to be valid it is necessary to determine whether the monomials of a differential polynomial are linearly independent. A simple test for this property is presented in this work. The derivation and analysis of this relation can be implemented symbolically within Maple. These techniques are applied to analyse classical models from biomedical systems modelling and those of enzyme catalysed reaction schemes.2014-02-12T14:16:49ZAdaptive discontinuous Galerkin methods for nonstationary convection–diffusion problems
http://hdl.handle.net/2381/28539
Title: Adaptive discontinuous Galerkin methods for nonstationary convection–diffusion problems
Authors: Cangiani, Andrea; Georgoulis, Emmanuil H.; Metcalfe, Stephen
Abstract: This work is concerned with the derivation of a robust a posteriori error estimator for a discontinuous Galerkin (dG) method discretization of a linear nonstationary convection–diffusion initial/boundary value problem and with the implementation of a corresponding adaptive algorithm. More specifically, we derive a posteriori bounds for the error in the L[superscript 2](H[superscript 1]) + L∞(L[superscript 2])-type norm for an interior penalty dG discretization in space and a backward Euler discretization in time. Finally, an adaptive algorithm is proposed utilizing the error estimator. Optimal rate of convergence of the adaptive algorithm is observed in a number of test problems and for various Pèclet numbers.2014-01-23T09:55:27ZOn the composition and neutrix composition of the delta function with the hyperbolic tangent and its inverse functions
http://hdl.handle.net/2381/28477
Title: On the composition and neutrix composition of the delta function with the hyperbolic tangent and its inverse functions
Authors: Fisher, Brian; Kılıcman, Adem
Abstract: Let F be a distribution in D[superscript 1] and let f be a locally summable function. The composition F(f(x)) of F and f is said to exist and be equal to the distribution h(x) if the limit of the sequence {F[subscript n](f(x))} is equal to h(x), where F[subscript n](x)= F(x) ∗ δ[subscript n](x) for n = 1, 2, . . . and {δ[subscript n](x)} is a certain regular sequence converging to the Dirac delta function. It is proved that the neutrix composition δ([superscript rs-1])((tanh x[subscript +])[superscript 1/r]) exists and δ([superscript rs-1])((tanh x[subscript +])[superscript 1/r]) = ∑[superscript s-1, subscript k=0] ∑[superscript K[subscript k], subscript i=0] ((-1)[superscript k]c[subscript s-2i-1,k] (rs)!/2sk!)δ([superscript k])(x) for r,s = 1, 2, . . ., where K[subscript k] is the integer part of (s-k-1)/2 and the constants c[subscript j,k] are defined by the expansion (tanh[superscript -1]x)superscript k = {∑[superscript ∞, subscript i=0] (x[superscript 2i+1]/(2i + 1))}[superscript k] = ∑[superscript ∞, subscript j=k] c[subscript j,k]x[superscript j], for k = 0,1,2,.... Further results also provided.2013-12-04T15:41:51ZOn the Neutrix Composition of the Delta and Inverse Hyperbolic Sine Functions
http://hdl.handle.net/2381/28476
Title: On the Neutrix Composition of the Delta and Inverse Hyperbolic Sine Functions
Authors: Fisher, Brian; Kılıcman, Adem
Abstract: Let F be a distribution in D[superscript 1] and let f be a locally summable function. The composition F(f(x)) of F and f is said to exist and be equal to the distribution h(x) if the limit of the sequence {F[subscript n](f(x))} is equal to h(x), where F[subscript n](x)= F(x) ∗ δ[subscript n](x) for n = 1, 2, . . . and {δ[subscript n](x)} is a certain regular sequence converging to the Dirac delta function. In the ordinary sense, the composition δ([superscript s])[(sinh[superscript −1]x[subscript +])[superscript r] does not exists. In this study, it is proved that the neutrix composition δ([superscript s])[(sinh[superscript −1]x[subscript +])[superscript r] exists and is given by δ([superscript s])[(sinh[superscript −1]x[subscript +])[superscript r] = ∑[superscript sr+r-1, subscript k=0] ∑[superscript k, subscript i=0] ([superscript k, subscript i]) ((-1)[superscript k] rc[subscript s,k,i]/2[superscript k+1]k!)δ([superscript k])(x), for s = 0, 1, 2, . . . and r = 1, 2, . . ., where c[subscript s,k,i] = (−1)[superscript s]s![(k − 2i + 1)[superscript rs−1] + (k − 2i − 1)[superscript rs+r−1]/(2(rs + r − 1)!). Further results
are also proved.2013-12-04T14:56:21ZFurther Results on the Dilogarithm Integral
http://hdl.handle.net/2381/28472
Title: Further Results on the Dilogarithm Integral
Authors: Jolevska-Tuneska, Biljana; Fisher, Brian
Abstract: The dilogarithm integral Li(x[superscript s]) and its associated functions Li[subscript +](x[superscript s]) and Li[subscript -](x[superscript s]) are defined as locally summable functions on the real line. Some convolutions and neutrix convolutions of these functions and other functions are then found.2013-12-03T16:35:00ZDiscontinuous Galerkin Methods for Mass Transfer through Semi-Permeable Membranes
http://hdl.handle.net/2381/28090
Title: Discontinuous Galerkin Methods for Mass Transfer through Semi-Permeable Membranes
Authors: Cangiani, Andrea; Georgoulis, Emmanuil H.; Jensen, Max
Abstract: A discontinuous Galerkin (dG) method for the numerical solution of initial/boundary value multi-compartment partial differential equation (PDE) models, interconnected with interface conditions, is presented and analysed. The study of interface problems is motivated by models of mass transfer of solutes through semi-permeable membranes. More specifically, a model problem consisting of a system of semilinear parabolic advection-diffusion-reaction partial differential equations in each compartment, equipped with respective initial and boundary conditions, is considered. Nonlinear interface conditions modelling selective permeability, congestion and partial reflection are applied to the compartment interfaces. An interior penalty dG method is presented for this problem and it is analysed in the space-discrete setting. The a priori analysis shows that the method yields optimal a priori bounds, provided the exact solution is sufficiently smooth. Numerical experiments indicate agreement with the theoretical bounds and highlight the stability of the numerical method in the advection-dominated regime.2013-08-27T15:28:56ZErratum: Collision dynamics of granular particles with adhesion (Physical Review E (2007) 76 (051302))
http://hdl.handle.net/2381/28089
Title: Erratum: Collision dynamics of granular particles with adhesion (Physical Review E (2007) 76 (051302))
Authors: Brilliantov, Nikolai V.; Albers, Nicole; Spahn, Frank; Pöschel, Thorsten
Abstract: An erratum to the article available at http://hdl.handle.net/2381/20218.2013-08-27T14:59:00ZThe canonical ensemble via symplectic integrators using Nosé and Nosé–Poincaré chains
http://hdl.handle.net/2381/28031
Title: The canonical ensemble via symplectic integrators using Nosé and Nosé–Poincaré chains
Authors: Leimkuhler, Benedict J.; Sweet, Christopher R.
Abstract: Simulations that sample from the canonical ensemble can be generated by the addition of a single degree of freedom, provided that the system is ergodic, as described by Nosé with subsequent modifications by Hoover to allow sampling in real time. Nosé–Hoover dynamics is not ergodic for small or stiff systems and the addition of auxiliary thermostats is needed to overcome this deficiency. Nosé–Hoover dynamics, like its derivatives, does not have a Hamiltonian structure, precluding the use of symplectic integrators which are noted for their long term stability and structure preservation. As an alternative to Nosé–Hoover, the Hamiltonian Nosé–Poincaré method was proposed by Bond, Laird, and Leimkuhler [J. Comput. Phys. 151, 114 (1999)], but the straightforward addition of thermostatting chains does not sample from the canonical ensemble. In this paper a method is proposed whereby additional thermostats can be applied to a Hamiltonian system while retaining sampling from the canonical ensemble. This technique has been used to construct thermostatting chains for the Nosé and Nosé–Poincaré methods.2013-06-26T15:14:48ZThe anisotropic hard-sphere crystal-melt interfacial free energy from fluctuations.
http://hdl.handle.net/2381/28028
Title: The anisotropic hard-sphere crystal-melt interfacial free energy from fluctuations.
Authors: Davidchack, Ruslan L.; Morris, James R.; Laird, Brian B.
Abstract: We have calculated the interfacial free energy for the hard-sphere system, as a function of crystal interface orientation, using a method that examines the fluctuations in the height of the interface during molecular dynamics simulations. The approach is particularly sensitive for the anisotropy of the interfacial free energy. We find an average interfacial free energy of gamma=0.56+/-0.02k(B)Tsigma(-2). This value is lower than earlier results based upon direct calculations of the free energy [R. L. Davidchack and B. B. Laird, Phys. Rev. Lett. 85, 4751 (2000)]. However, both the average value and the anisotropy agree with the recent values obtained by extrapolation from direct calculations for a series of the inverse-power potentials [R. L. Davidchack and B. B. Laird, Phys. Rev. Lett. 94, 086102 (2005)].2013-06-26T14:36:42ZRole of three-body interactions in formation of bulk viscosity in liquid argon
http://hdl.handle.net/2381/27877
Title: Role of three-body interactions in formation of bulk viscosity in liquid argon
Authors: Lishchuk, Sergey V.
Abstract: With the aim of locating the origin of discrepancy between experimental and computer simulation
results on bulk viscosity of liquid argon, a molecular dynamic simulation of argon interacting via
ab initio pair potential and triple-dipole three-body potential has been undertaken. Bulk viscosity,
obtained using Green-Kubo formula, is different from the values obtained from modeling argon
using Lennard-Jones potential, the former being closer to the experimental data. The conclusion is
made that many-body inter-atomic interaction plays a significant role in formation of bulk viscosity.2013-04-24T14:51:14ZAdaptive Observers and Parameter Estimation for a Class of Systems Nonlinear in the Parameters
http://hdl.handle.net/2381/27849
Title: Adaptive Observers and Parameter Estimation for a Class of Systems Nonlinear in the Parameters
Authors: Tyukin, Ivan Y.; Steur, Erik; Nijmeijer, Henk; Leeuwen, Cees van
Abstract: We consider the problem of asymptotic reconstruction of the state and parameter values in systems of ordinary differential equations. A solution to this problem is proposed for a class of systems of which the unknowns are allowed to be nonlinearly parameterized functions of state and time. Going beyond the concept of asymptotic Lyapunov stability, we provide for this class a reconstruction technique based on the notions of weakly attracting sets and non-uniform convergence. Reconstruction of state and parameter values is subjected to persistency of excitation conditions. In absence of nonlinear parametrization the resulting observers reduce to standard estimation schemes. This allows to view the proposed method as a generalization of the conventional canonical adaptive observer design.2013-04-09T14:30:08ZLyapunov-like Conditions of Forward Invariance and Boundedness for a Class of Unstable Systems
http://hdl.handle.net/2381/27778
Title: Lyapunov-like Conditions of Forward Invariance and Boundedness for a Class of Unstable Systems
Authors: Gorban, Alexander N.; Tyukin, Ivan; Steur, Erik; Nijmeijer, Henk
Abstract: We provide Lyapunov-like characterizations of boundedness and convergence of non-trivial solutions for a class of systems with unstable invariant sets. Examples of systems to which the results may apply include interconnections of stable subsystems with one-dimensional unstable dynamics or critically stable dynamics. Systems of this type arise in problems of nonlinear output regulation, parameter estimation and adaptive control. In addition to providing boundedness and convergence criteria the results allow to derive domains of initial conditions corresponding to solutions leaving a given neighborhood of the origin at least once. In contrast to other works addressing convergence issues in unstable systems, our results require neither input-output characterizations for the stable part nor estimates of convergence rates. The results are illustrated with examples, including the analysis of phase synchronization of neural oscillators with heterogenous coupling.
Description: Embargo length currently unknown. The article is still in press and full text will be made available once it has been published.2013-03-06T16:08:28ZNonuniform small-gain theorems for systems with unstable invariant sets
http://hdl.handle.net/2381/27777
Title: Nonuniform small-gain theorems for systems with unstable invariant sets
Authors: Tyukin, Ivan; Steur, Erik; Nijmeijer, Henk; Van Leeuwen, Cees
Abstract: We consider the problem of asymptotic convergence to invariant sets in interconnected nonlinear dynamical systems. Standard approaches often require that the invariant sets be uniformly attracting, e. g., stable in the Lyapunov sense. This, however, is neither a necessary requirement nor is always useful. Systems may, for instance, be inherently unstable ( e. g., intermittent, itinerant, meta-stable) or the problem statement may include requirements that cannot be satisfied with stable solutions. This is often the case in general optimization problems and in nonlinear parameter identification or adaptation. Conventional techniques for these cases either rely on detailed knowledge of the system's vector-fields or require boundedness of its states. The presently proposed method relies only on estimates of the input-output maps and steady-state characteristics. The method requires the possibility of representing the system as an interconnection of a stable and contracting part with an unstable and exploratory part. We illustrate with examples how the method can be applied to problems of analyzing the asymptotic behavior of locally unstable systems as well as to problems of parameter identification and adaptation in the presence of nonlinear parametrizations. The relation of our results to conventional small-gain theorems is discussed.2013-03-06T15:37:09ZTowards complete detection of unstable periodic orbits in chaotic systems
http://hdl.handle.net/2381/26993
Title: Towards complete detection of unstable periodic orbits in chaotic systems
Authors: Davidchack, RL; Lai, Y-C; Klebanoff, A; Bollt, EM2012-10-24T09:22:48ZTriple cohomology of Lie-Rinehart algebras and the canonical class of associative algebras
http://hdl.handle.net/2381/26994
Title: Triple cohomology of Lie-Rinehart algebras and the canonical class of associative algebras
Authors: Casas, JM; Ladra, M; Pirashvili, T2012-10-24T09:22:48ZTowards a correct description of zooplankton feeding in models: Taking into account food-mediated unsynchronized vertical migration
http://hdl.handle.net/2381/26992
Title: Towards a correct description of zooplankton feeding in models: Taking into account food-mediated unsynchronized vertical migration
Authors: Morozov, AY; Morozov, AY; Arashkevich, EG2012-10-24T09:22:48ZVanishing line for the descent spectral sequence
http://hdl.handle.net/2381/26995
Title: Vanishing line for the descent spectral sequence
Authors: Pirashvili, T2012-10-24T09:22:48ZVariations on the cohomology of loop spaces on generalized homogeneous spaces
http://hdl.handle.net/2381/26996
Title: Variations on the cohomology of loop spaces on generalized homogeneous spaces
Authors: Neumann, F2012-10-24T09:22:48ZWall-induced prefreezing in hard spheres: A thermodynamic perspective
http://hdl.handle.net/2381/26997
Title: Wall-induced prefreezing in hard spheres: A thermodynamic perspective
Authors: Laird, BB; Davidchack, RL2012-10-24T09:22:48ZThird Mac Lane cohomology
http://hdl.handle.net/2381/26990
Title: Third Mac Lane cohomology
Authors: Baues, H-J; Jibladze, M; Pirashvili, T2012-10-24T09:22:48ZThe K-theory of C -algebras with finite dimensional irreducible representations
http://hdl.handle.net/2381/26985
Title: The K-theory of C -algebras with finite dimensional irreducible representations
Authors: Hunton, J; Shchukin, M2012-10-24T09:22:47ZThe simplest random walks for the Dirichlet problem
http://hdl.handle.net/2381/26986
Title: The simplest random walks for the Dirichlet problem
Authors: Milstein, GN; Milstein, GN; Tretyakov, MV; Tretyakov, MV2012-10-24T09:22:47ZThe hochschild cohomology ring of a class of special biserial algebras
http://hdl.handle.net/2381/26980
Title: The hochschild cohomology ring of a class of special biserial algebras
Authors: Snashall, N; Taillefer, R; Taillefer, R2012-10-24T09:22:47ZThe Hochschild cohomology ring of a selfinjective algebra of finite representation type
http://hdl.handle.net/2381/26983
Title: The Hochschild cohomology ring of a selfinjective algebra of finite representation type
Authors: Green, EL; Snashall, N; Solberg, Ø2012-10-24T09:22:47ZThe economics of motion perception and invariants of visual sensitivity.
http://hdl.handle.net/2381/26975
Title: The economics of motion perception and invariants of visual sensitivity.
Authors: Gepshtein, S; Tyukin, I; Kubovy, M
Abstract: Neural systems face the challenge of optimizing their performance with limited resources, just as economic systems do. Here, we use tools of neoclassical economic theory to explore how a frugal visual system should use a limited number of neurons to optimize perception of motion. The theory prescribes that vision should allocate its resources to different conditions of stimulation according to the degree of balance between measurement uncertainties and stimulus uncertainties. We find that human vision approximately follows the optimal prescription. The equilibrium theory explains why human visual sensitivity is distributed the way it is and why qualitatively different regimes of apparent motion are observed at different speeds. The theory offers a new normative framework for understanding the mechanisms of visual sensitivity at the threshold of visibility and above the threshold and predicts large-scale changes in visual sensitivity in response to changes in the statistics of stimulation and system goals.2012-10-24T09:22:46ZSubalgebras of group cohomology defined by infinite loop spaces
http://hdl.handle.net/2381/26950
Title: Subalgebras of group cohomology defined by infinite loop spaces
Authors: Hunton, JR; Schuster, B2012-10-24T09:22:45ZSolving parabolic stochastic partial differential equations via averaging over characteristics
http://hdl.handle.net/2381/26937
Title: Solving parabolic stochastic partial differential equations via averaging over characteristics
Authors: Milstein, GN; Tretyakov, MV2012-10-24T09:22:44ZStability and stabilization of the lattice Boltzmann method
http://hdl.handle.net/2381/26940
Title: Stability and stabilization of the lattice Boltzmann method
Authors: Brownlee, RA; Gorban, AN; Levesley, J2012-10-24T09:22:44ZStrict polynomial functors and coherent functors
http://hdl.handle.net/2381/26945
Title: Strict polynomial functors and coherent functors
Authors: Franjou, V; Pirashvili, T2012-10-24T09:22:44ZSodium salts in E-ring ice grains from an ocean below the surface of Enceladus.
http://hdl.handle.net/2381/26932
Title: Sodium salts in E-ring ice grains from an ocean below the surface of Enceladus.
Authors: Postberg, F; Kempf, S; Schmidt, J; Brilliantov, N; Beinsen, A; Abel, B; Buck, U; Srama, R
Abstract: Saturn's moon Enceladus emits plumes of water vapour and ice particles from fractures near its south pole, suggesting the possibility of a subsurface ocean. These plume particles are the dominant source of Saturn's E ring. A previous in situ analysis of these particles concluded that the minor organic or siliceous components, identified in many ice grains, could be evidence for interaction between Enceladus' rocky core and liquid water. It was not clear, however, whether the liquid is still present today or whether it has frozen. Here we report the identification of a population of E-ring grains that are rich in sodium salts ( approximately 0.5-2% by mass), which can arise only if the plumes originate from liquid water. The abundance of various salt components in these particles, as well as the inferred basic pH, exhibit a compelling similarity to the predicted composition of a subsurface Enceladus ocean in contact with its rock core. The plume vapour is expected to be free of atomic sodium. Thus, the absence of sodium from optical spectra is in good agreement with our results. In the E ring the upper limit for spectroscopy is insufficiently sensitive to detect the concentrations we found.2012-10-24T09:22:43ZSemi-passivity and synchronization of diffusively coupled neuronal oscillators
http://hdl.handle.net/2381/26925
Title: Semi-passivity and synchronization of diffusively coupled neuronal oscillators
Authors: Steur, E; Nijmeijer, H; Tyukin, I; Tyukin, I2012-10-24T09:22:43ZSequences of Willmore surfaces
http://hdl.handle.net/2381/26927
Title: Sequences of Willmore surfaces
Authors: Leschke, K; Pedit, F; Pedit, F2012-10-24T09:22:43ZRadial basis interpolation on homogeneous manifolds: Convergence rates
http://hdl.handle.net/2381/26906
Title: Radial basis interpolation on homogeneous manifolds: Convergence rates
Authors: Levesley, J; Ragozin, DL2012-10-24T09:22:42ZQuantization of orbit bundles in gl
(ℂ)
http://hdl.handle.net/2381/26904
Title: Quantization of orbit bundles in gl
(ℂ)
Authors: Mudrov, A; Mudrov, A; Ostapenko, V2012-10-24T09:22:42ZQuasi-equilibrium closure hierarchies for the Boltzmann equation
http://hdl.handle.net/2381/26905
Title: Quasi-equilibrium closure hierarchies for the Boltzmann equation
Authors: Gorban, AN; Gorban, AN; Karlin, IV; Gorban, AN2012-10-24T09:22:42ZReaction-diffusion waves in biology.
http://hdl.handle.net/2381/26909
Title: Reaction-diffusion waves in biology.
Authors: Volpert, V; Petrovskii, S
Abstract: The theory of reaction-diffusion waves begins in the 1930s with the works in population dynamics, combustion theory and chemical kinetics. At the present time, it is a well developed area of research which includes qualitative properties of travelling waves for the scalar reaction-diffusion equation and for system of equations, complex nonlinear dynamics, numerous applications in physics, chemistry, biology, medicine. This paper reviews biological applications of reaction-diffusion waves.2012-10-24T09:22:42ZOn the suboptimality of the p-version interior penalty discontinuous galerkin method
http://hdl.handle.net/2381/26898
Title: On the suboptimality of the p-version interior penalty discontinuous galerkin method
Authors: Georgoulis, EH; Hall, E; Melenk, JM2012-10-24T09:22:41ZConsequences of the Allee effect and intraspecific competition on population persistence under adverse environmental conditions.
http://hdl.handle.net/2381/26900
Title: Consequences of the Allee effect and intraspecific competition on population persistence under adverse environmental conditions.
Authors: Petrovskii, S; Blackshaw, R; Li, BL
Abstract: The impact of intraspecific interactions on ecological stability and population persistence in terms of steady state(s) existence is considered theoretically based on a general competition model. We compare persistence of a structured population consisting of a few interacting (competitive) subpopulations, or groups, to persistence of the corresponding unstructured population. For a general case, we show that if the intra-group competition is stronger than the inter-group competition, then the structured population is less prone to extinction, i.e. it can persist in a parameter range where the unstructured population goes extinct. For a more specific case of a population with hierarchical competition, we show that relative viability of structured and unstructured populations depend on the type of density dependence in the population growth. Namely, while in the case of logistic growth, structured and unstructured populations exhibit equivalent persistence; in the case of Allee dynamics, the persistence of a hierarchically structured population is shown to be higher. We then apply these results to the case of behaviourally structured populations and demonstrate that an extreme form of individual aggression can be beneficial at the population level and enhance population persistence.2012-10-24T09:22:41ZOn the state space geometry of the Kuramoto-Sivashinsky flow in a periodic domain
http://hdl.handle.net/2381/26897
Title: On the state space geometry of the Kuramoto-Sivashinsky flow in a periodic domain
Authors: Cvitanović, P; Siminos, E; Davidchack, RL2012-10-24T09:22:41ZOn the Hochschild cohomology of tame Hecke algebras
http://hdl.handle.net/2381/26896
Title: On the Hochschild cohomology of tame Hecke algebras
Authors: Erdmann, K; Schroll, S2012-10-24T09:22:41ZQuadratic algebra of square groups
http://hdl.handle.net/2381/26902
Title: Quadratic algebra of square groups
Authors: Baues, H-J; Jibladze, M; Pirashvili, T2012-10-24T09:22:41ZPatterns of patchy spread in multi-species reaction-diffusion models
http://hdl.handle.net/2381/26899
Title: Patterns of patchy spread in multi-species reaction-diffusion models
Authors: Morozov, A; Li, B-L; Morozov, A; Morozov, A; Ruan, S; Li, B-L2012-10-24T09:22:41ZNumerical methods for stochastic systems preserving symplectic structure
http://hdl.handle.net/2381/26890
Title: Numerical methods for stochastic systems preserving symplectic structure
Authors: Milstein, GN; Milstein, GN; Repin, YM; Tretyakov, MV; Tretyakov, MV2012-10-24T09:22:41ZOn (Co)homology of 2-types and crossed modules
http://hdl.handle.net/2381/26891
Title: On (Co)homology of 2-types and crossed modules
Authors: Datuashvili, T; Pirashvili, T2012-10-24T09:22:41ZOn decomposition numbers and Alvis-Curtis duality
http://hdl.handle.net/2381/26894
Title: On decomposition numbers and Alvis-Curtis duality
Authors: Ackermann, B; Schroll, S2012-10-24T09:22:41ZOn cellularization for simplicial presheaves and motivic homotopy
http://hdl.handle.net/2381/26892
Title: On cellularization for simplicial presheaves and motivic homotopy
Authors: Neumann, F; Rodriguez, JL2012-10-24T09:22:41ZMinimal inductive systems of modular representations for naturally embedded algebraic and finite groups of type A
http://hdl.handle.net/2381/26866
Title: Minimal inductive systems of modular representations for naturally embedded algebraic and finite groups of type A
Authors: Baranov, AA; Suprunenko, ID2012-10-24T09:22:39ZModular representations of classical groups with small weight multiplicities
http://hdl.handle.net/2381/26867
Title: Modular representations of classical groups with small weight multiplicities
Authors: Baranov, AA; Osinovskaya, AA; Suprunenko, ID2012-10-24T09:22:39ZNew examples of Willmore tori in S
http://hdl.handle.net/2381/26875
Title: New examples of Willmore tori in S
Authors: Gouberman, A; Leschke, K2012-10-24T09:22:39ZMultiplicative structures for Koszul algebras
http://hdl.handle.net/2381/26873
Title: Multiplicative structures for Koszul algebras
Authors: Buchweitz, R-O; Green, EL; Snashall, N; Solberg, O2012-10-24T09:22:39Z