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Some features of extended loops are considered. In particular, the behaviour under diffeomorphism transformations of the wavefunctions with support on the extended loop space are studied. The basis of a method to obtain analytical…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Jorge Griego

We study the differential and metric structures of the set of real square roots of a non-singular real matrix, under the assumption that the matrix and its square roots are semi-simple, or symmetric, or orthogonal.

Differential Geometry · Mathematics 2020-10-30 Alberto Dolcetti , Donato Pertici

In this paper, we study dilation of cyclic polytopes with the vertices defined by a generator of the simplest cubic fields. In particular, for a specific range of values, we give a precise number of the contained lattice points.

Number Theory · Mathematics 2020-11-10 Giacomo Cherubini , Pavlo Yatsyna

Structures of commuting semigroups of isometries under certain additional assumptions like double commutativity or dual double commutativity are found.

Functional Analysis · Mathematics 2023-06-27 Tirthankar Bhattacharyya , Shubham Rastogi , Vijaya Kumar U

We prove a strong dichotomy for the number of ultrapowers of a given countable model associated with nonprincipal ultrafilters on N. They are either all isomorphic, or else there are $2^{2^{\aleph_0}}$ many nonisomorphic ultrapowers. We…

Logic · Mathematics 2009-12-03 Ilijas Farah , Saharon Shelah

We study the asymptotics of the average number of squares (or quadratic residues) in Z_n and Z_n^*. Similar analyses are performed for cubes, square roots of 0 and 1, and cube roots of 0 and 1.

Number Theory · Mathematics 2016-03-28 Steven Finch , Pascal Sebah

Commutative complex numbers of the form u=x+\alpha y+\beta z+\gamma t in 4 dimensions are studied, the variables x, y, z and t being real numbers. Four distinct types of multiplication rules for the complex bases \alpha, \beta and \gamma…

Complex Variables · Mathematics 2007-05-23 Silviu Olariu

In this paper, it is shown that the Boolean ring of a commutative ring is isomorphic to the ring of clopens of its prime spectrum. In particular, Stone's Representation Theorem is generalized. The prime spectrum of the Boolean ring of a…

Commutative Algebra · Mathematics 2021-02-16 Abolfazl Tarizadeh , Zahra Taheri

It is well known that for a non pseudocompact space X, the family (X) of all intermediate subrings of C(X) which contain bounded real valued continuous functions contains at least 2c many distinct rings. We show that if in addition X is…

General Topology · Mathematics 2021-02-08 Bedanta Bose , Sudip Kumar Acharyya

Octonion algebras over rings are, in contrast to those over fields, not determined by their norm forms. Octonion algebras whose norm is isometric to the norm q of a given algebra C are twisted forms of C by means of the Aut(C)-torsor O(q)…

Rings and Algebras · Mathematics 2017-11-22 Seidon Alsaody , Philippe Gille

We give formulas for the number of representations of non negative integers by various quadratic forms. We also give evaluations in the case of sum of two cubes (cubic case) and the quintic case, as well. We introduce a class of generalized…

General Mathematics · Mathematics 2015-04-30 Nikos Bagis , M. L Glasser

Loop groups G as families of mappings of the complex manifold M into another complex manifold N preserving marked points $s_0\in M$ and $y_0\in N$ are investigated. Quasi-invariant measures $\mu $ on G relative to dense subgroups $G'$ are…

Representation Theory · Mathematics 2007-05-23 S. V. Ludkovsky

This study is the $5^{th}$ part of a detailed study on Type-2 isomorphic circulant graphs having ten parts \cite{v2-1}-\cite{v2-10} and is a continuation of Part 4. Here, we study Type-2 isomorphic circulant graphs of $C_{48}(r_1,r_2,r_3)$,…

Combinatorics · Mathematics 2026-05-13 Vilfred Kamalappan

We obtain a Central Limit Theorem for the normalized number of real roots of a square Kostlan-Shub-Smale random polynomial system of any size as the degree goes to infinity. A study of the asymptotic variance of the number of roots is…

Probability · Mathematics 2018-05-07 Diego Armentano , Jean-Marc Azaïs , Federico Dalmao , José León

We prove an asymptotic formula for the number of representations of squares by nonsingular cubic forms in six or more variables. The main ingredients of the proof are Heath-Brown's form of the Circle Method and various exponential sum…

Number Theory · Mathematics 2022-04-21 Lasse Grimmelt , Will Sawin

The singular chain complex of the iterated loop space is expressed in terms of the cobar construction. After that we consider the spectral sequence of the cobar construction and calculate its first term over Z/p-coefficients and over a…

Algebraic Topology · Mathematics 2007-05-23 V. A. Smirnov

We consider a generalized discriminant associated to a symmetric space which generalizes the discriminant of real symmetric matrices, and note that it can be written as a sum of squares of real polynomials. A method to estimate the minimum…

Representation Theory · Mathematics 2010-08-10 Claudio Gorodski

Let H1 be the complex reflection group of order 96. For the tensor products of faithful transitive permutation representations of H1, we determine the structures of the centralizer rings. This complements the work of Imamura-Kosuda-Oura.

Combinatorics · Mathematics 2025-07-29 Masashi Kosuda , Manabu Oura , Sarbaini

The decomposition theorem for torsion abelian groups holds analogously for torsion commutative diassociative loops. With this theorem in mind, we investigate commutative diassociative loops satisfying the additional condition (trivially…

Group Theory · Mathematics 2011-08-19 Michael K. Kinyon , Petr Vojtechovsky

We give p-local homotopy decompositions of the loop spaces of compact, simply-connected symmetric spaces for quasi-regular primes. The factors are spheres, sphere bundles over spheres, and their loop spaces. As an application, upper bounds…

Algebraic Topology · Mathematics 2016-01-20 Shizuo Kaji , Akihiro Ohsita , Stephen Theriault