60,661 research outputs found

    Motivic zeta function via dlt modification

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    Given a smooth variety XX and a regular function ff on it, by considering the dlt modification, we define the dlt motivic zeta function Zmotdlt(s)Z^{\rm dlt}_{\rm mot}(s) which does not depend on the choice of the dlt modification.Comment: 11 page

    Multilateral Transparency for Security Markets Through DLT

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    For decades, changing technology and policy choices have worked to fragment securities markets, rendering them so dark that neither ownership nor real-time price of securities are generally visible to all parties multilaterally. The policies in the U.S. National Market System and the EU Market in Financial Instruments Directive— together with universal adoption of the indirect holding system— have pushed Western securities markets into a corner from which escape to full transparency has seemed either impossible or prohibitively expensive. Although the reader has a right to skepticism given the exaggerated promises surrounding blockchain in recent years, we demonstrate in this paper that distributed ledger technology (DLT) contains the potential to convert fragmented securities markets back to multilateral transparency. Leading markets generally lack transparency in two ways that derive from their basic structure: (1) multiple platforms on which trades in the same security are matched have separate bid/ask queues and are not consolidated in real time (fragmented pricing), and (2) highspeed transfers of securities are enabled by placing ownership of the securities in financial institutions, thus preventing transparent ownership (depository or street name ownership). The distributed nature of DLT allows multiple copies of the same pricing queue to be held simultaneously by a large number of order-matching platforms, curing the problem of fragmented pricing. This same distributed nature of DLT would allow the issuers of securities to be nodes in a DLT network, returning control over securities ownership and transfer to those issuers and thus, restoring transparent ownership through direct holding with the issuer. A serious objection to DLT is that its latency is very high—with each Bitcoin blockchain transaction taking up to ten minutes. To remedy this, we first propose a private network without cumbersome proof-of-work cryptography. Second, we introduce into our model the quickly evolving technology of “lightning networks,” which are advanced two-layer off-chain networks conducting high-speed transacting with only periodic memorialization in the permanent DLT network. Against the background of existing securities trading and settlement, this Article demonstrates that a DLT network could bring multilateral transparency and thus represent the next step in evolution for markets in their current configuration

    Factors that Impact Blockchain Scalability

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    Blockchain systems (more precisely Distributed Ledger Technologies(DLTs)) represent a different digital ecosystem compared with traditional computer systems. One major difference are the performance and scalability factors which will be discussed and analytically investigated in this paper. Indoing so, we provide guidance for defining a research agenda focusing on the investigation of the crucial role of scalability for DLT systems. System performance - measured in terms of (1) consensus response time (blockchain network latency or time to convergence/agreement); (2) number of transactionsper second or throughput, and (3) computing (and power) resources consumed - can be understood by considering the design dimensions of a DLT system, namely: (i) the type of DLT system needed from a requirements perspectivewhich in turn determines; (ii) the complexity of the consensus protocol used; (iii) the topography of the anticipated traffic flow on the network; (iv) the performance and complexity of the domain-specific language that implementssmart contracts; and (v) by the anticipated growth in size and complexity of the distributed ledger itself.Blockchain systems (more precisely Distributed Ledger Technologies(DLTs)) represent a different digital ecosystem compared with traditional computer systems. One major difference are the performance and scalability factors which will be discussed and analytically investigated in this paper. Indoing so, we provide guidance for defining a research agenda focusing on the investigation of the crucial role of scalability for DLT systems. System performance - measured in terms of (1) consensus response time (blockchain network latency or time to convergence/agreement); (2) number of transactionsper second or throughput, and (3) computing (and power) resources consumed - can be understood by considering the design dimensions of a DLT system, namely: (i) the type of DLT system needed from a requirements perspectivewhich in turn determines; (ii) the complexity of the consensus protocol used; (iii) the topography of the anticipated traffic flow on the network; (iv) the performance and complexity of the domain-specific language that implementssmart contracts; and (v) by the anticipated growth in size and complexity of the distributed ledger itself

    Finiteness of log abundant log canonical pairs in log minimal model program with scaling

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    We study relations between the property of being log abundant for lc pairs and the termination of log MMP with scaling. We prove that any log MMP with scaling of an ample divisor starting with a projective dlt pair contains only finitely many log abundant dlt pairs.Comment: 42 pages. Following referee's comment, I removed Section 4 in the previous version and added a new section (Section 5 in the current version). Corollaries 3.12 and 3.13 were added. Exposition in the introduction was change

    STRATEGI PENGEMBANGAN KLASTER EKONOMI BERBASIS AGRIBISNIS SALAK DI KABUPATEN TAPANULI SELATAN

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    Salak (Salacca edulis L.) sebagai salah satu komoditas pertanian memiliki prosfek dalam pengembangan agribisnis yang mendukung peningkatan ekonomi petani. Selain dikonsumsi dalam bentuk buah segar, salak dapat dikonsumsi dalam berbagai bentuk olahan. Kabupaten Tapanuli Selatan merupakan sentra penghasil salak di Sumatera dengan produksi 462.758 Ton/Tahun. Kabupaten Tapanuli Selatan saat ini mengarah sebagai daerah klaster ekonomi. Konsep klaster ekonomi telah banyak mengundang perhatian berbagai stakeholder terhadap pengembangan ekonomi lokal suatu wilayah. Penelitian bertujuan untuk mengetahui apakah agribisnis salak dapat dikembangkan sebagai suatu klaster ekonomi di Kabupaten Tapanuli Selatan. Data dianalisis menggunakan metode deskriptif, matriks IFAS/EFAS dan SWOT. Matriks IFAS/EFAS untuk menganalisis lingkungan internal dan lingkungan eksternal. Matriks SWOT untuk menentukan posisi dan strategi agribisnis salak. Penelitian ini dilakukan di Kabupaten Tapanuli Selatan karena daerah potensial bagi agribisnis salak. Responden dalam penelitian ini adalah petani salak, pedagang salak, industri pengolahan salak dan lembaga pendukung (Dinas Pertanian Tanaman Pangan dan Holtikultura dan Dinas Perindustrian dan Perdagangan). Hasil penelitian menjelaskan Matriks IFAS memperoleh skor 2,903 sebagai sumbu X dan Matriks EFAS memperoleh skor 2,813 sebagai sumbu Y. Agribisnis salak berada pada kuadran I. Artinya pada posisi ini agribisnis salak memiliki peluang dan kekuatan yang dapat dimanfaatkan untuk pertumbuhan agresif, melalui perluasan pangsa pasar, pengembangan produk dan melihat selera konsumen serta meningkatkan jumlah produksi olahan salak
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