Results 11 to 20 of about 52,691 (210)

Invariant solutions to the Strominger system and the heterotic equations of motion [PDF]

Nuclear Physics B, 2017
We construct many new invariant solutions to the Strominger system with respect to a 2-parameter family of metric connections ∇ε,ρ in the anomaly cancellation equation.
Antonio Otal, Luis Ugarte, Raquel Villacampa   +2 more
doaj   +6 more sources

On a k-th Gauduchon almost Hermitian manifold

Complex Manifolds, 2022
We characterize the k-th Gauduchon condition and by applying its characterization, we reprove that a compact k-th Gauduchon, semi-Kähler manifold becomes quasi-Kähler, which tells us that in particular, a compact almost pluriclosed, semi-Kähler manifold ...
Kawamura Masaya
doaj   +1 more source

Searching for a Connection Between Matroid Theory and String Theory [PDF]

, 2002
We make a number of observations about matter-ghost string phase, which may eventually lead to a formal connection between matroid theory and string theory.
Achucarro, Aganagic, Anderson, Anderson, Awada, Banks, Birkhoff, Bland, Castro, Castro, Crapo, Dolan, Duff, Duff, Duff, Englert, Ferreira, Gamboa, Garcı́a-Compeán, Gelfand, Gopakumar, Gopakumar, Gursey, Horava, J. A. Nieto, Kauffman, Kutasov, Kutasov, MacLane, Marı́n, Martinec, Martinec, Montano, Murasugi, Nair, Nieto, Nieto, Nieto, Nieto, Ooguri, O’Loughlin, Przanowsky, Schiff, Schild, Schwarzler, Susskind, Tekin, Thistlethwaite, Tutte, Tutte, Vafa, Whitney, Witten, Witten, Witten, Zaikov, Zaikov, Zaikov, Zaslavsky, Zaslavsky   +59 more
core   +4 more sources

Estimates for a function on almost Hermitian manifolds

Complex Manifolds, 2021
We study some estimates for a real-valued smooth function φ on almost Hermitian manifolds. In the present paper, we show that ∂∂∂̄ φ and ∂̄∂∂̄ φ can be estimated by the gradient of the function φ.
Kawamura Masaya
doaj   +1 more source

Chern-Simons theory and BCS superconductivity [PDF]

, 2001
We study the relationship between the holomorphic unitary connection of Chern-Simons theory with temporal Wilson lines and the Richardson's exact solution of the reduced BCS Hamiltonian.
Amico, Amico, Amico, Axelrod, Babujian, Babujian, Bardeen, Bernard, Bershadsky, Cambiaggio, Delft, di Francesco, Dotsenko, Dotsenko, Dukelsky, Dukelsky, Etingof, Etingof, Falceto, Falceto, Falceto, Felder, Felder, Fernando Falceto, Fetter, Gaudin, Gawedzki, Germán Sierra, Girvin, Girvin, Kalmeyer, Knizhnik, Korepin, Labastida, Laughlin, Laughlin, Manuel Asorey, Ralph, Ralph, Richardson, Richardson, Richardson, Richardson, Ring, Sierra, Sklyanin, van Geemen, von Delft, Witten, Zhang, Zhou   +50 more
core   +2 more sources

Generalized real-space Chern number formula and entanglement hamiltonian

SciPost Physics, 2023
We generalize a real-space Chern number formula for gapped free fermions to higher orders. Using the generalized formula, we prove recent proposals for extracting thermal and electric Hall conductance from the ground state via the entanglement ...
Ruihua Fan, Pengfei Zhang, Yingfei Gu
doaj   +1 more source

String connections and Chern-Simons theory [PDF]

Transactions of the American Mathematical Society, 2013
55 pages; v2: new section with a better treatment of the relation to string connections of Stolz-Teichner, minor changes otherwise; v3: some newest developments referenced, minor changes; v4 comes with typos corrected and is the final and published ...
openaire   +2 more sources

Chiral And Parity Anomalies At Finite Temperature And Density [PDF]

, 1997
Two closely related topological phenomena are studied at finite density and temperature. These are chiral anomaly and Chern-Simons term. By using different methods it is shown that $\mu^2 = m^2$ is the crucial point for Chern-Simons at zero temperature ...
A.N. Sissakian, Alvarez-Gaumé, Brown, Chodos, Gomez Nicola, Jackiw, Johnson, Lykken, Lykken, Lykken, Niemi, Niemi, Niemi, O.Yu. Shevchenko, Redlich, Redlich, Rubakov, Rubakov, Rutherford, S.B. Solganik, Schakel, Schwinger, Schwinger, Shuryak, Sissakian, Tsokos, Zeitlin   +26 more
core   +3 more sources

On the Kähler-likeness on almost Hermitian manifolds

Complex Manifolds, 2019
We define a Kähler-like almost Hermitian metric. We will prove that on a compact Kähler-like almost Hermitian manifold (M2n, J, g), if it admits a positive ∂ ̄∂-closed (n − 2, n − 2)-form, then g is a quasi-Kähler metric.
Kawamura Masaya
doaj   +1 more source

Existence and Uniqueness of Chern Connection in the Klein-Grifone Approach [PDF]

Journal of Dynamical Systems and Geometric Theories, 2020
LaTeX file, 14 ...
Youssef, Nabil L., Elgendi, S. G.
openaire   +2 more sources