Results 21 to 30 of about 243,999 (210)
THE HALL ALGEBRAS OF SURFACES I [PDF]
Journal of the Institute of Mathematics of Jussieu, 2018 We study the derived Hall algebra of the partially wrapped Fukaya category of a surface. We give an explicit description of the Hall algebra for the disk with$m$marked intervals and we give a conjectural description of the Hall algebras of all surfaces with enough marked intervals. Then we use a functoriality result to show that a graded version of the
Samuelson, Peter, Cooper, Benjamin
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Quartic surfaces, their bitangents and rational points [PDF]
Épijournal de Géométrie Algébrique, 2023 Let X be a smooth quartic surface not containing lines, defined over a number field K. We prove that there are only finitely many bitangents to X which are defined over K.
Pietro Corvaja, Francesco Zucconi
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Differentials of the 2nd kind on a product surface
International Journal of Mathematics and Mathematical Sciences, 1979 This paper deals with the problems of representing an arbitrary double differential of the second kind, defined on a surface which is the topological product of two curves, in terms of the products of simple differentials of the second kind on the two ...
J. C. Wilson
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Isomorphism of Compactifications of Vector Bundles Moduli: Nonreduced Moduli
Моделирование и анализ информационных систем, 2015 We continue the study of the compactification of the moduli scheme for Gieseker-semistable vector bundles on a nonsingular irreducible projective algebraic surface S with polarization L, by locally free sheaves.
N. V. Timofeeva
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Algebraic expressions for estimating the impact depths of a surface barrier over a homogeneous soil
Vadose Zone Journal, 2020 Engineered surface barriers are used to isolate subsurface contaminants for effective long‐term containment of waste of a variety of types. The impact depths of a surface barrier are affected by the pre‐barrier recharge rate and the properties of the ...
Zhuanfang Fred Zhang
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Loops, Surfaces and Grassmann Representation in Two- and Three-Dimensional Ising Models [PDF]
, 1998 Starting from the known representation of the partition function of the 2- and 3-D Ising models as an integral over Grassmann variables, we perform a hopping expansion of the corresponding Pfaffian.
C. R. GATTRINGER +3 more
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Invariant Algebraic Surfaces and Impasses
Qualitative Theory of Dynamical Systems, 2021 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Paulo Ricardo da Silva +1 more
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Mathematics, 2020 Fractional calculus is widely used in engineering fields. In complex mechanical systems, multi-body dynamics can be modelled by fractional differential-algebraic equations when considering the fractional constitutive relations of some materials.
Yongpeng Tai +4 more
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Moduli Spaces of Higher Spin Klein Surfaces [PDF]
, 2016 We study the connected components of the space of higher spin bundles on hyperbolic Klein surfaces. A Klein surface is a generalisation of a Riemann surface to the case of non-orientable surfaces or surfaces with boundary.
Natanzon, Sergey, Pratoussevitch, Anna
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On the determination of shifting operators along geodesics on a surface [PDF]
Theoretical and Applied Mechanics, 2013 A procedure to obtain a closed form of the shifting operators along a known geodesic line on a surface as a solution of a system of linear algebraic equations is proposed.
Drašković Zoran
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