Mathematics Commons^™

Fixed Point Theorems For Convex-Power Condensing Operators Relative To The Weak Topology And Applications To Volterra Integral Equations, Ravi P. Agarwal, Donal O'Regan, Mohamed-Aziz Taoudi

Mathematics and System Engineering Faculty Publications

In this paper we present new fixed point theorems for weakly sequentially continuous mappings which are convex-power condensing relative to a measure of weak noncompactness. Our fixed point results extend and improve several earlier works. As an application, we investigate the existence of weak solutions to a Volterra integral equation. 2012 Rocky Mountain Mathematics Consortium.

Cearnal, Elijah (Sc 588), Manuscripts & Folklife Archives

Manuscript Collection Finding Aids

Finding aid and scan (Click on "additional files" below) for Manuscripts Small Collection 588. A ciphering book kept by Elijah Cearnal as a student. The name "Patrick Carnall" is also written in the book.

Wilkerson, Brice W. (Sc 586), Manuscripts & Folklife Archives

Manuscript Collection Finding Aids

Finding aid and scan (Click on "additional files" below) for Manuscripts Small Collection 586. A ciphering book kept by Brice W. Wilkerson, of either Simpson County of Logan County, Kentucky, as a student. The name “Stanley Wilkerson” is also noted in the book.

Sutherland, Daniel, 1797-1835 (Sc 589), Manuscripts & Folklife Archives

Manuscript Collection Finding Aids

Finding aid and scan (Click on "additional files" below) for Manuscripts Small Collection 589. Ciphering book of Daniel Sutherland, probably of Casey County, Kentucky, dated 31 March 1825 to 2 December 1825. It was also used for the period from 16 July 1828 to 9 October 1828, and indications are that this record was the work of Uriah S. Sutherland.

Motley, Matthew, 1786-1845 (Sc 591), Manuscripts & Folklife Archives

Manuscript Collection Finding Aids

Finding aid and scan (Click on "additional files" below) for Manuscripts Small Collection 591. Ciphering book, 1800-1801, kept by Matthew Motley of Allen County, Kentucky. Business accounts,1807-1811, of John Motley, father of Matthew, and business accounts, 1805-1823, of Matthew, who was a cabinetmaker, are documented in the back of the book; other notations record the hiring out of enslaved persons, medicinal remedies, and a poetic reaction to the New Madrid earthquake, 1811.

Smith, Alexander (Sc 596), Manuscripts & Folklife Archives

Manuscript Collection Finding Aids

Finding aid and scan (Click on "additional files" below) for Manuscripts Small Collection 596. Ciphering book, 1799, made by Alexander Smith, who was a school master in Prince George County, Virginia. Henry Oiler? states that it is his ciphering book, so perhaps he was a student of
Smith’s. A few business accounts of Oiler’s are recorded.

Gromov-Witten Theory Of P^1 X P^1 X P^1, Dagan Karp, Dhruv Ranganathan

All HMC Faculty Publications and Research

We prove equivalences between the Gromov-Witten theories of toric blowups of P^1xP^1xP^1 and P^3. In particular, we prove that the all genus, virtual dimension zero Gromov-Witten theory of the blowup of P^3 at points precisely coincides with that of the blowup at points of P^1xP^1xP^1, for non-exceptional classes. It follows that the all-genus stationary Gromov-Witten theory of P^1xP^1xP^1 coincides with that of P^3 in low degree. We also prove there exists a toric symmetry of the Gromov-Witten theory of P^1xP^1xP^1 analogous to and intimately related to Cremona symmetry of P^3. Enumerative applications are given.

Perry, Minerva W. (Martin), 1820-1906 (Sc 592), Manuscripts & Folklife Archives

Manuscript Collection Finding Aids

Finding aid and scan (Click on "additional files" below) for Manuscripts Small Collection 592. Ciphering book kept by Minerva W. (Martin) Perry of Clarksville, Johnson County, Arkansas, with the only date noted being that of 28 June 1830. Other names are written in the book, and
birth and death dates of members of a Martin family are listed.

Hamilton, William D. (Sc 590), Manuscripts & Folklife Archives

Manuscript Collection Finding Aids

Finding aid and scan (Click on "additional files" below) for Manuscripts Small Collection 590. Ciphering book, writer unknown, possibly kept during the 1830s. W.D. Hamilton’s name with notes dated in the 1870s appears on several pages of the book and his address is listed as Hamilton, Ohio County, Kentucky.

Halcomb, Warren G. (Sc 587), Manuscripts & Folklife Archives

Manuscript Collection Finding Aids

Finding aid and scan (Click on "additional files" below) for Manuscripts Small Collection 587. Ciphering book of Warren G. Halcomb’s of Caswell County, North Carolina, which he kept from 11 September 1809 to 15 July 1815. Other entries in the book include a few family names and dates, personal business notes, and a recipe for the cure of rheumatism. Loose items, 1840-1854, found in the book concern the slave trade, 1840 and 1849.

Spread Option Pricing With Stochastic Interest Rate, Yi Luo

Theses and Dissertations

In this dissertation, we investigate the spread option pricing problem with stochastic interest rate. First, we will review the basic concept and theories of stochastic calculus, give an introduction of spread options and provide some examples of spread options in different markets. We will also review the market efficiency theory, arbitrage and assumptions that are commonly used in mathematical finance. In Chapter 3, we will review existing spread pricing models and term-structure models such as Vasicek Mode, and the Heath-Jarrow-Morton framework. In Chapter 4, we will use the martingale approach to derive a partial differential equation for the price of …

New Computational Techniques In Fjrw Theory With Applications To Landau Ginzburg Mirror Symmetry, Amanda Francis

Theses and Dissertations

Mirror symmetry is a phenomenon from physics that has inspired a lot of interesting mathematics. In the Landau-Ginzburg setting, we have two constructions, the A and B models, which are created based on a choice of an affine singularity with a group of symmetries. Both models are vector spaces equipped with multiplication and a pairing (making them Frobenius algebras), and they are also Frobenius manifolds. We give a result relating stabilization of singularities in classical singularity to its counterpart in the Landau-Ginzburg setting. The A model comes from so-called FJRW theory and can be de fined up to a full …

Persistence And Foliation Theory And Their Application To Geometric Singular Perturbation, Ji Li

Theses and Dissertations

Persistence problem of compact invariant manifold under random perturbation is considered in this dissertation. Under uniformly small random perturbation and the condition of normal hyperbolicity, the original invariant manifold persists and becomes a random invariant manifold. The random counterpart has random local stable and unstable manifolds. They could be invariantly foliated thanks to the normal hyperbolicity. Those underlie an extension of the geometric singular perturbation theory to the random case which means the slow manifold persists and becomes a random manifold so that the local global structure near the slow manifold persists under singular perturbation. A normal form for a …

Diagonal Entry Restrictions In Minimum Rank Matrices, And The Inverse Inertia And Eigenvalue Problems For Graphs, Curtis G. Nelson

Theses and Dissertations

Let F be a field, let G be an undirected graph on n vertices, and let SF(G) be the set of all F-valued symmetric n x n matrices whose nonzero off-diagonal entries occur in exactly the positions corresponding to the edges of G. Let MRF(G) be defined as the set of matrices in SF(G) whose rank achieves the minimum of the ranks of matrices in SF(G). We develop techniques involving Z-hat, a process termed nil forcing, and induced subgraphs, that can determine when diagonal entries corresponding to specific vertices of G must be zero or nonzero for all matrices in …

From Pop-Up Cards To Coffee-Cup Caustics: The Knight's Visor, Stephanie Jakus, Joseph O'Rourke

Computer Science: Faculty Publications

As a pedagogical exercise, we derive the shape of a particularly elegant pop-up card design, and show that it connects to a classically studied plane curve that is (among other interpretations) a caustic of a circle

Weak Cayley Table Isomorphisms, Long Pham Bao Nguyen

Theses and Dissertations

We investigate weak Cayley table isomorphisms, a generalization of group isomorphisms. Suppose G and H are groups. A bijective map phi : G to H is a weak Cayley table isomorphism if it satisfies two conditions:(1) If x is conjugate to y, then phi(x) is conjugate to phi(y); (2) For all x, y in G, phi(xy) is conjugate to phi(x)phi(y).If there exists a weak Cayley table isomorphism between two groups, then we say that the two groups have the same weak Cayley table.This dissertation has two main goals. First, we wish to find sufficient conditions under which two groups have …

Adaptive Randomization Designs, Jenna Colavincenzo

Statistics

Adaptive design methodologies use prior information to develop a clinical trial design. The goal of an adaptive design is to maintain the integrity and validity of the study while giving the researcher flexibility in identifying the optimal treatment. An example of an adaptive design can be seen in a basic pharmaceutical trial. There are three phases of the overall trial to compare treatments and experimenters use the information from the previous phase to make changes to the subsequent phase before it begins.

Adaptive design methods have been in practice since the 1970s, but have become increasingly complex ever since. One …

Applying Differential Transform Method To Nonlinear Partial Differential Equations: A Modified Approach, Marwan T. Alquran

Applications and Applied Mathematics: An International Journal (AAM)

This paper proposes another use of the Differential transform method (DTM) in obtaining approximate solutions to nonlinear partial differential equations (PDEs). The idea here is that a PDE can be converted to an ordinary differential equation (ODE) upon using a wave variable, then applying the DTM to the resulting ODE. Three equations, namely, Benjamin-Bona-Mahony (BBM), Cahn-Hilliard equation and Gardner equation are considered in this study. The proposed method reduces the size of the numerical computations and use less rules than the usual DTM method used for multi-dimensional PDEs. The results show that this new approach gives very accurate solutions.

Coding Theorems On A Non-Additive Generalized Entropy Of Havrda-Charvat And Tsallis, Satish Kumar, Arun Choudhary

Applications and Applied Mathematics: An International Journal (AAM)

A new measure L^β_α, called average code word length of order α and type β is defined and its relationship with a generalized information measure of order α and type β is discussed. Using L^β_α , some coding theorems are proved.

Σary, Minnesota State University Moorhead, Mathematics Department

Math Department Newsletters

No abstract provided.